OFFROAD - TRAIL

FLOW ADJUSTER KIT 'FA-48' 2017-2020 

Our successful 'FA48' Flow adjuster kit has been revamped, tuned and further dialed in over the last 2 years resulting in further gains and upgrades available for your WP Xplor fork. All updates available and will work with the 2020 models right back to the first year Xplor in 2017! 

Fits all WP Xplor Forks 

After a lot of feedback from our test crew, riders and customers we have worked out more options with this kit offering higher performance, even more adjust-ability and most importantly greater value.  

Our ‘Flow adjuster kit’ comes with a Mid-speed piston and new post assembly matched with a tune able shim stack to suit the Xplor48 fork.  This completely swaps in as a replacement for the very weak OEM Wp comp adjuster on the compression side cartridge rod. The Krooztune ‘FA’ fork cap is tuneable in fine increments allowing for a true 20+ clicks of workable and huge noticeable adjustment!

The latest addition of a 'Base adjuster'  we find a working range of around 16 clicks. This achieves a much more plush feel over the rocks and logs with huge gains in plushness without making the fork overall too soft or a mushy feeling.  

The powerful 'FA' adjuster can be set from a super firm setting (1 click out from full in) all the way through to a plush setting at around 18-20 clicks out.  Winding or clicking this Adjuster on the FA fork cap actually changes the comp shim float in the mid speed piston allows super powerful adjustment. Almost like a soft MX like setup to super plush setting in clicks.

Full Kit Includes:

• FA Adjuster cap
• Base compression adjuster
• 2 x base compression pistons ( fitted to both sides )
• Base compression shims / settings
• New refined Mid valve assembly/adjuster complete with shims ready to go
• 3 optional base shim settings - Soft/Medium/Firm
• Full fitting instruction manual 
• 12mm Clamp kit to install midvalve assembly

Setting

Our kit comes with 3 shim/setting options. We install Medium on all our kits unless advised otherwise, we can arrange to already pre set your option. Please leave in comment box at check out.  Setting sheet supplied

Setting:

1. Soft - Suits plush setting absorbs all intial hits with ease. We have great results with this with our Vet / Older guys that dont want to get beat up all day on long rides
2. Medium - Average fitness, Average speed great all round setting . A balance between soft and firm. Bump absorption with great hold up.
3. Firm - Ex Mx racer or fit / fast/ tall guy riding on the trails at pace?  This setting works well for guys that like a firmer mx style feeling.  Rip hard fast Trail's ease.  Still not too firm but enough to charge hard, setting developed with our in house Vet mx racer after loving testing on the KTM EXC range.  

See table below for our experience found in tuning our kit once installed, highlighting the main issues we found on our testing program.  We would adjust in these increments until great rider feeling is achieved.

**Clicks firmer 'in' clockwise direction / softer is 'out' anticlockwise** All Setting adjusted from the supplied 'Base Clicker' Setting

Test riders found a comfortable window fairly quickly that suited their ability and terrain in a matter of minutes.  After dialing in your FA adjuster for great hold up on downhills and landings, the fine tuning for tree roots, rocks and logs can be fine tuned with our base compression adjuster giving you the plushness and softer feel in your hands when riding the trails or racetrack.

The Setting is simply not 'stuck' on the Suspension tuners setting/valving specification.  Once installed you have the ability to virtually 'revalve' on the fly!

"Super Plush to mx like firm in seconds"   

Fitting this kit yourself?  KROOZR WP cap spanner is available in the xplor collection   

Dealer Pricing and Parts are Available Separate. Please send us a quick message in the box below and we will email pricing options

 Key Updates for all kits developed for 2020 

• 4 Port compression pistons for finer tuning ability and less ‘blow out’ on big hits. We can achieve firmer compression setting whilst retaining a plush feel changing to this design. Fitted to both fork legs with shim stacks supplied for easy install.
• Fine tunable Compression Base adjuster. This replaces the stock non adjustable unit,  fitted to the bottom of the rebound fork only. This adjuster fitted to the rebound leg only will offer greater noticeable changes in compression setup. First off it runs a bleed from the system straight away making this plusher in hand. With a working range of around 4-20 clicks it allows for fine tuning of the compression on tree roots, rocks and small logs.  Take the sharp hits out while not adjusting the powerful flow adjuster. Ultimate Settings can be achieved by balancing out the 2 adjusters. This enables less stress on the tuner getting the setting perfect for you.  On our test bikes we ran the base adjuster on 10 clicks out and the FA on 16 clicks out.  Super plush with hold up straight off the bat!
• Not happy with the valving and initial setting installed for you from the spec sheet or your local tuner? Re work it out on the trail. This kit is super adjustable, soft to hard.  Base Clicker setting and base FA setting supplied.  
• All new valving/shim settings are available to suit all year model Xplor bikes. Got a 2017 bike? Upgrade to 2019 and now 2020 tested specs and setup easily. 3 base setting's are supplied 

Complete Fork and Shock Upgrade Kit available here 

 Kits Available to fit all KTM EXC / XC-W 2017 -2020 Models.

XC-W Models please select EXC range

A complete Suspension Upgrade kit for the Xplor Equipped KTM EXC and XC-W Offroad models. Kit Includes Hard parts and 3 setting options so you can best decide the base valving setting most suited to your speed and skill level.

Soft - Medium - Firm 

*Optional shims included to adjust to all 3 setup's. 

1. Soft - Suits plush setting that absorbs all initial hits with ease. We have great results with this setting with our Vet / Older guys that dont want to get beat up all day on long rides. This setting is great for rocky terrain with square edge / tree roots hits.
2. Medium - Average fitness, Average speed great all round setting . A balance between soft and firm. Bump absorption with great hold up.  A setting that is both initally plush and still holds up.  This setting is great combined with adjusting the FA adjuster to suit specific terrain.  Riding rocks? Click the FA out a few softer in seconds.  
3. Firm - Ex Mx racer or fit / fast / tall guy riding on the trails at pace?  This setting works well for guys that like a firmer mx style feeling.  Rip hard fast trail sections with ease.  Still not too firm but enough to charge hard, setting developed with our in house Vet mx racer after loving testing on the KTM EXC range.  

All kits Shipped with Base setting installed - 'Medium' 

Kit Includes :

• Xplor FA48 Flow Adjuster kit (inc setting / shims)
• Xplor Shock Upgrade kit (inc setting / shims)
• Xplor Nitrogen Bladder Kit
• Shaft Clamp tool 
• Settings sheet including 3 valving setup options and shims to adjust.  Soft - Medium - Firm 
• Instructions

See individual Kits for detailed info 

**Kit is recommended to be fitted by a competent suspension tuner or service shop.  

The KTM and Husqvarna  WP48 Air to spring conversion kit is aimed to suit all the range of KTM's and Husqvarna that come equipped with the WP48 AER fork as standard.  This includes Ktm's SXF, SX ,XC and XCF models as well as Husqvarna's equivalent bikes in the FC, TC,TX and FX range. 

If its got WP AER48 forks in your bike as OEM equipment , this kit will fit. No need to ever set air pressure again, transforming front end feel, corner entry and less pressure / spring rate variables whilst riding over long distance.

Install Video:

Our WP Air to spring conversion kit is a complete replacement cartridge assembly for your current WP AER setup.  It is designed to completely remove all the Air system from your current WP AER 48 fork  and replace it with a preload adjustable spring and cartridge setup.  High Quality German Engineered ‘Eibach’ Springs are available to suit varying rider weights.  Please advise upon order which spring you require (see recommendations below) or let us know your weight and speed  and we will recommend the best spring for you. 

This kit fit's in minutes.  If you can pull down and service your fork seals on the WP AER 48 fork you can install this kit. Info and instruction included.

Spring Rate Recommendation 

 250F and 2 Strokes 

450F 

General riding & Motocross applications

These recommendations  are a guide only as fork Springs are weight and speed dependent. For example a 72 kg Pro rider falls into the 0.88kg/mm category but may well be better suited to a 0.92kg spring due to the much higher corner entry speed and the ability to hit large bumps at high speeds. Please note this guide is for rider weight ‘without’ gear.

Please note we have had great results using one spring down for Veteran/ C level riders on the 450 machines.  Eg. 90kg rider running a 0.96kg/mm spring for a plusher ride.

For more accurate advice please consult your local suspension tech or send us an email.

 Rider weight Spring Recommendation ( Pro Level riders may consider one rate harder than recommended due to the faster speed and need for 'hold up')

Key Features

• Never have to set your air pressure ever again.
• Much more reliable fork
• Super smooth action resulting from our tested spring guidance system. 
• Hydraulic Bottoming resistance using our tapered bottoming piston and seat.
• No Fade out or pump up in pressure over long moto’s
• A Constant feel in your front end that  is more consistent throughout the ride
• Spring Pre load adjustable minimal tools are required for fitment. If you have the Fork cap and basic tools to remove the standard OEM Air cartridge you will have the ability to fit up our kit.  Our cartridge kit is made from High grade 6061 Aircraft Grade Alloy , Chrome Moly rods and Anodised for a Factory Finish. Instruction manual included.

Parts included in the kit

• Fully Complete Cartridge assembly including Bottoming Cone and preload washers 
• Optional Selected Eibach spring to suit this kit

Xplor Shock upgrade it for the KTM EXC Offroad models.  Comes with 3 setting options so you can best decide the base valving setting most suited to you.

Kit Fits : All KTM Xplor Shocks 2017-2020

After hours on the trail with our test bike and riders we have put together an upgrade for the hard fast acting KTM Xplor shock. After trying various valving settings initial plushness was not completely achieved until we installed a bleed circuit  into the compression pathway just like other opposition brand suspension have.

The XPLOR shock has no ‘give’ on very initial action and softening the valving or setting only resulted in wallow and blow out. Our shaft bleed mod comes with a new compression valve spacer , CNC machined ready to bolt straight onto the shock shaft (replacing the oem shaft spacer swap in / out).  A simple procedure to drill the new bleed circuit is then required (very easy to do with our supplied drill bit and instruction).  All valving is ready to go on and assembled as per shock building procedures.

Kit Includes :

• Complete Shock Valving / Shims 
  
• Bleed / Bypass post
• Drill bit for shock shaft modification
• Xplor Nitrogen Bladder Conversion
• Settings sheet including 3 valving setup options and shims to adjust.  Soft / Medium/ Firm 
• Instruction's

**Optional shims included to adjust to all 3 setup's. Medium setting is pre installed on both compression and rebound, allowing minor simple changes if required at all from our setting recommendation.   

Setting

1. Soft - Suits plush setting, absorbs all initial hits with ease.  We have great results with this with our Vet / Older riders that don't want to get beat up all day on long trail rides 
2. Medium - Average fitness, Average speed.  Great all round setting . A balance between soft and firm. Bump absorption with great hold up.
3. Firm - Ex Mx racer or fit/fast/tall guy riding on the trails at pace?  This setting works well for guys that like a firmer MX style feeling.  Rip hard fast Trail's ease.  Still not too firm but enough to charge hard. This setting was developed with our in house Vet MX racer after loving testing on the KTM EXC range.  

Shock Parts should be fitted by a competent suspension tuner or service shop 

Nitrogen Gas Bladder Conversion for WP Linkage shocks.

 Improved bump absorption and less fade.  Kit runs a genuine Showa Bladder for ease of re order and durability.

Fits :

KTM All 2016-20  SXF / XCF / XC / SX

Husqvarna    All 2016-20  FC / FX / TX / TC / FS   

Krooztune Adult and kids T Shirts. 

Available in Petrol Blue, Black and Red

Kids sizes run :

6year, 10year, and Adult Small 

Designed to lower your KTM or Husqvarna 20 or 30mm via an Adjustable Rear Linkage Button.  Push button out and flip around for the option required.

Linkage Fits: 2016-2021 KTM 125 150 200 250 300 350 450 500 525 530 SX SXF EXCF XC XC-W linkage models

2016-2021 Husqvarna TC125 FC250 FC350 FC450 FS450

2017-2021 Husqvarna FE250 FE350 FE450 FE501 TE150 TE250 TE250i TE300 TE300i TX125

Linkage includes Pre Installed Bearings for ease of fitment.  Seals and Bearing pin will need to be swapped across from the OEM linkage at time of install.  

Instruction included

Designed and CNC Machined at Krooztune HQ here in Australia by Qualified Engineers and Suspension Professionals.   Machined from 6061 Alloy specifically sourced from NZ and USA. 

Made in Australia

Fork and Shock Lowering kit designed to lower your WP Xplor EXC Suspension 

Fits: EXC/EXC-F/XC-W/XCF-W 2017 – 2021 models

The Krooz Racing Lowering Kit is designed to be installed with the suspension completely stripped apart. E.g. during a complete suspension service. This install should only be undertaken by a qualified suspension tech or mechanic with knowledge and confidence in general fork and shock rebuilding and suspension part fitment.

Forks are lowered via the acedal spacers installed on the rebound rods.  Shorter spring seats are suplied to keep spring preload the same as oem spec.

Shock is lowered via a custom machined base plate installed via shock service / build procedure.  

Manufactured and CNC machined here in Australia to include 4 variants designed to lower your WP Xplor Suspension in either 20, 30, 40 or 50mm. 

Our fork kit is made from billet alloy and matched with Acedal fork De-strokers. The Shock Base plate is machined from billet steel just like the OEM unit to retain factory function.  

This lowering kit is finished in all black to result in a factory look finish inside your forks and shock. 

Kit includes:

• 2 x Fork De-strokers
• 2 x Fork Spring Seats
• 1 x Shock De-stroker base plate
• Instruction

Our fork de-stroker kit simply installs on the Rebound/Damper rods against the original ‘top-out’ spring to professionally lower the fork.  The krooztune engineered billet alloy spring seats are then required to replace the oem seats to keep fork spring preload to spec.

Lowering the shock absorber is achieved using our CNC billet steel base plate, completely replacing the OEM unit and retaining original function whilst being lower.

The result is a bike that is professionally lowered and balanced just like the OEM stock bike, but with a lower seat height.    

Kits will fit WP Xplor Forks and Shocks

EXC-F / XCF-W all models 2017-2021

• 500 EXC-F / XCF-W
• 450 EXC-F / XCF-W
• 350 EXC-F / XCF-W
• 250 EXC-F / XCF-W

EXC XC-W

• 300 EXC / TPI / XC-W
• 250 EXC / TPI / XC-W
• 150 EXC / TPI / XC-W

This kit will not fit the XC/XC-F models.  Although they have Xplor forks it is matched to a WP Xact linkage style shock. Our kits for these are available here: 

Fits:

• KTM Xplor Shocks - ALL

Our Gas Bladder kit Converts your WP XPLOR shock to a Bladder nitrogen system allowing the shock to perform at a high 'Factory' Level.  The Oem Unit in these WP shocks have a floating piston standard that separates the oil and gas from mixing.  The issue with this while it is cheap to produce, generates heat and friction as the piston moves up and down along with the shocks movement when hitting bumps. 

We find a much better feeling and performance from this shock when it is changed to bladder system as found on the Factory WP Trax shock and all Japanese Showa/KYB units.  Making an already great WP shock better.

All Kits are Billet machined and supplied with Genuine KYB bladders internally for a high quality, ease of ordering spares and reassurance.  

Kit includes:

• Bladder Housing
• Circlip
• End cap ( nitrogen needle filled)
• Hex Screw for an extra backup gas Seal 

Kits Available to fit all Husqvarna TE/FE 2019-2020 Models.

A complete Suspension Upgrade kit for the Xplor/Xact Equipped Husqvarna FE Offroad models. This kit includes extensive Krooztune Engineered Hard Parts and 3 Trail tested setting options so you can best decide the base setting most suited to your speed and skill level.  Matched with our 4 variant rebound setting this allows you to custom build your best setup.  

All info and specifications and advise are supplied in the kit backed up with email support direct from Krooztune HQ.

Fork and Shock options are supplied in our Specification sheet with simple easy to follow tuning options for both Rebound and Compression.

Full Instructions to install both the Fork kit and the rear Bladder can be found here

All shock absorbers should be built with the usual shock building procedures. If in doubt leave this to a local qualified motorcycle mechanic or suspension builder. We offer an easy shipping service with in AUS to make this step a breeze. 

Kit Setting Soft - Medium - Firm 

                                      *Optional shims are included to adjust to all 3 setup's.

3 Setting Option - Fork and Shock 

1. Soft - Suits plush setting that absorbs all initial hits with ease. We have great results with this setting with our Vet / Older guys that dont want to get beat up all day on long rides. This setting is great for rocky terrain with square edge / tree roots hits.  
2. Medium - Average fitness, Average speed great all round setting . A balance between soft and firm. Bump absorption with great hold up.  A setting that is both initally plush and still holds up.  This setting is great combined with adjusting the FA adjuster to suit specific terrain.  Riding rocks? Click the FA out a few softer in seconds.  
3. Firm - Ex Mx racer or fit / fast / tall guy riding on the trails at pace?  This setting works well for guys that like a firmer mx style feeling.  Rip hard fast trail sections with ease.  Still not too firm but enough to charge hard.  We have tested our Trail setups on local MX tracks just to see what they can handle. Although the Offroad bikes felt a little heavier, slower and plusher than our MX race setups at the time of testing this,  we had a blast with embarrassingly fast 'FE' lap times compared to our laps on the setup Mxer's! 

All kits Shipped with Base setting installed 'Medium' 

"Trail tested in real world conditions"

Compression and Rebound Selection Options - Build your Own Custom Setup

All our Husqvarna Shock and Fork setting and data are supplied with various rebound settings ( 4 different variants to choose from) to suit all spring rates.  Running OEM rebound damping on a stock oem shock for example will result in a super springy uncontrolled shock.  The OEM setting does not offer enough control or damping to control a much heavier spring rate.  

Choose a base compression setting from Soft/Medium/Firm and match it with the correct rebound in our specification sheet ( choose to match to your spring rate , info supplied) and you will have a superior rear end that is adjustable and controlled.  

Kit Includes :

• Xplor FA48 Flow Adjuster kit (inc specification / shims)
• Xact Linkage Shock  Setting and Shims
• Xact Nitrogen Bladder Kit
• Shaft Clamp tool 
• Settings sheet including 3 valving setup options and shims to adjust.  Soft - Medium - Firm 
• Instructions - Xplor FA48 Flow Adjuster Install /  Xact Nitrogen Bladder kit
• Decal Set 

 See individual Kits and parts for detailed info 

**Kit is recommended to be fitted by a competent suspension tuner or service shop.  

High Flow Compression Piston to suit KYB 50mm and 46mm body modern era shocks.  Developed to reduce high speed spikes without having to dramatically alter the high speed compression valving to improve this situation. 

Retains all OEM seals, post, check valve and shim stacks. 

Fits all 2016-2020 Model Bikes Listed

•  YZF250/450 
• YZ250 2 Stroke
• WR Offroad range 

**May fit alot more of the older model bikes also. Please check via Genuine part number comparison 

Our proven FA48 Mid Valve Assembly broken down to the main piece that controls the magic.  Adjusting shim float is done right here in this Mid Valve post assembly. 

This assembly works and adjusts well whilst using the OEM fork cap although changes are not as fine and controlled as when its paired to our Custom designed FA48 fork Cap.

Great adjustments at even better valvue.  The main issue with WP Xplor Forks right here.

This Assembly is very popular with Suspension Tuner's worldwide and installed alongside thier own idea's and setups.

Husqvarna FE lowering kit – WP Xplor Fork / WP Xact Rear

Fork and Shock Lowering kit designed to lower your Wp equipped Husqvarna FE Suspension

Fits 2018-2022 Husqvarna FE Models

• FE250, FE350, FE450, FE501
• TE150/i, TE250/i, TE300/i

Manufactured and CNC machined here in Australia to include 3 variants designed to lower your WP Xplor/Xact Suspension in either 20, 30 or 40mm. 

Our fork kit is made from billet alloy and matched with Acedal fork De-strokers. The Shock Base plate is machined from billet steel just like the OEM unit to retain factory function.  

This lowering kit is finished in all black to result in a factory look finish inside your forks and shock. 

Kit includes:

• 2 x Fork De-strokers
• 2 x Fork Spring Seats
• 1 x Shock De-stroker base plate
• Instruction

Our fork de-stroker kit simply installs on the Rebound/Damper rods against the original ‘top-out’ spring to professionally lower the fork.  The krooztune engineered billet alloy spring seats are then required to replace the oem seats to keep fork spring preload to spec.

Lowering the shock absorber is achieved using our CNC billet steel base plate, completely replacing the OEM unit and retaining original function whilst being lower.

The result is a bike that is professionally lowered and balanced just like the OEM stock bike, but with a lower seat height.    

Kits will fit WP Xplor Forks and WP XACT Shocks that come as OEM on Husqvarna FE bikes

This kit will not fit the TX/FX models.  Although they have same Xact linkage style rear shock these bikes are matched to WP AER48 air forks. 

Our Original Setup designed in 2017 for the Xplor 48 Fork.  This 'Base kit' has all the improvements and refined parts included in our 'Complete kit' but at a more simpler cost effective setup.  

A simple mod to make your Xplor fork super adjustable from Soft to Firm in seconds using our Australian designed 'Flow Adjustment' .

This setup includes

-FA adjusater Cap 

-FA Mid Valve Post 

-Instructions and  Valving options to choose  on install

Fits 2017-2021 Ktm / Husqvarna AER48 fork.

A complete Mid Post piston kit  to suit all AER48 forks.  This piston assembly allows the compression shims to float (similar to Showa and KYB units) allowing instant plushness and rider feel.  We are using the OEM piston in pro level setups ( MX National Level) that need the superior hold up over very big bumps at speed.  This is not the majority though and we find many riders require a plusher feeling 

From low A right thru to Vet level and juniour racers this kit allows a more forgiving fork that can be tuned from soft offroad right up to senior mx.  

Kit includes:

• Piston and top plate
• Shim stack rebound ( inc optional setting)
• Shim Stack Compression ( inc optional setting)
• Complete post assembly 
  
• Mid Comp Spring
• Instruction and Setting sheet to adjust base setup 
• Optional setting inc for Light and heavy rebound settings
• Junior , Offroad , Vet MX and pro MX setting supplied.  

Kit requires the oem piston band and oring to be swapped accross at time of intall.  Suspension tech or a mechanic with suspension service knowledge will be required to install this part into the fron forks.  

Designed to lower your Honda CRF300/L/F -40mm

Fits: 2021 models

    2021- CRF300L 

    2021- CRF300LA 

    2021- CRF300LR 

    2021- CRF300LRA 

Linkage includes Pre Installed Bearings for ease of fitment.  Oem Seals and the Bearing pin/sleeve will need to be swapped across from the OEM linkage at time of install.  

Instruction included

Designed and CNC Machined at Krooztune HQ here in Australia.   Machined from 6061 Alloy specifically sourced from NZ and USA. 

Made in Australia  

Kits available for all WP AER and Xplor Forks.  KYB kits are ready to go with a B level Setting to suit MX in AER and Offroad in Xplor setting.

 Contact us now to inquire about a KYB cartridge kit pre set and valved specifically for you .  Rider weight, spring rate selected and valving settings installed at no cost prior to shipping.  Kits and Genuine Springs near always in stock.

• Convert your WP AER48 forks into KYB AOS Spring Forks - 

• Maintains the flex of the original inner and outertubes that has been designed for KTM/Husqvarna frames -

• The KYB feel combines perfectly with the KTM/Husqvarna character, giving it a very smooth feel, eliminating the harshness while building up a progressive damping profile toward the end of the stroke -

• Every individual cartridge kit fitted will be setup here at krooztune to suit Australian rider condition and speed.

• Personal setting based on the riders weight and bike

This Kit Includes:

2 x Cylinder Assemblies

2x Compression Base Valve Assembly 

1 Set of billet axle Brackets

2 x Oil Lock / Hydraulic stop

1 x set of fork springs ( rated to weight / speed)

2 x Litre KYB oil 

Please call or email the shop to organise a pre booking to have this kit installed and setup exactly for your needs.  Please email krooztune@krooztune.com or thru contact page  for any inquiry

A complete performance linkage system to suit WP equipped Linkage bikes

Fits: KTM / Husqvarna 2017-22 and the new Gas Gas models 2021-22

Recommended to run with 1-2 spring rates firmer than OEM recommendation.  We advise shock settings or clickers be adjusted by an experienced tuner to better match the stiffer spring rate required.

The result:

• A free shock action with less mid stroke spike or ramp up.
• Allows a more true to weight spring rate
• Less pitch onto the forks with matched rebound damping rates
• Easier to achieve full stroke movement across rough terrain without dumping internal compression valving. We feel this is a must have with light juniors or off road racers.
• Soft to hard at a more controlled level.

Our system is a complete linkage assembly that changes the rising rate.  In simple terms this WP performance linkage system has a softer feeling, it’s more linear.  Not as soft as WP’s offering on KTM models Pre 2016, but nowhere near as hard or aggressive as the 16-22 linkage WP is utilising in the SXF / XCF and some Husqvarna models.  

By heading back towards a more true to weight spring rate (we are around 48n to 51n for most riders) with our linkage we have achieved a more free rear end. Less mid stroke spike and more fluid motion into the guard especially with lighter weight riders.  This was for us very noticeable with all junior and Veteran level motocross racers and especially in enduro/off-road for all riders.  Less wheel lift from the ground and more travel easily utilised across very rough terrain.

The accelerated shaft speed caused by WP Xact’s newest style steep rising rate linkage caused too many problems leaving internal valving critical from rider to rider and too variable across different terrains.   A very small window of tuning form too soft to hard resulted.

This hard / aggressive style of linkage is obvious with the need to run a very soft rate of spring fitted in oem trim. 2016-2022 model bikes ran around for example 39n (125) to a 42n (250F) spring as standard from the manufacturer. This soft spring matches the steep rising rate linkage.  A big difference from the norm, way outside the spring rates we are used to in mx and off road suspension tuning.

The older style WP/KTM linkage (from pre 2016 era) ran around 54n to 57n as a standard rate for reference, but many found this too lazy in action and with poor bottoming resistance.  

Comparing notes on these 2 varying popular linkages a big difference in oem spring rate is easily noted, with our KTM performance linkage we feel we have tested near the middle of these two options trying to engineer our linkage to take most advantage of both these varying designs.  On track with many local suspension tuners and riders we have already had great success.

Kits available for all WP AER and Xplor Forks.  KYB kits are ready to go with a B/Club level Offroad setting.

 Contact us now to inquire about a KYB cartridge kit pre set and valved specifically for you .  Rider weight, spring rate selected and valving settings installed at no cost prior to shipping.  Kits and Genuine Springs near always in stock.

• Convert your WP AER48 forks into KYB AOS Spring Forks - 

• Maintains the flex of the original inner and outertubes that has been designed for KTM/Husqvarna frames -

• The KYB feel combines perfectly with the KTM/Husqvarna character, giving it a very smooth feel, eliminating the harshness while building up a progressive damping profile toward the end of the stroke -

• Every individual cartridge kit fitted will be setup here at krooztune to suit Australian rider condition and speed.

• Personal setting based on the riders weight and bike

This Kit Includes:

2 x Cylinder Assemblies

2x Compression Base Valve Assembly 

1 Set of billet axle Brackets

2 x Oil Lock / Hydraulic stop

1 x set of fork springs ( rated to weight / speed)

2 x Litre KYB oil 

Please call or email the shop to organise a pre booking to have this kit installed and setup exactly for your needs.  Please email krooztune@krooztune.com or thru contact page  for any inquiry

Lowering Linkage -30mm

Fits:

KX450F 2009-2015
KLX450R 2008-2018

KX250F 2006-2019
KX250 2020

Comes with Bearings and Seals Pre installed for easy fitment.  Bearing pin needs to be transferred from the OEM linkage.  

Instruction Included 

Proudly Made in Australia

Designed to lower your Suzuki RMZ450  -30mm 

Fits:

Suzuki RMZ450 2010-2012

Linkage includes Pre Installed Bearings for ease of fitment.  Seals and Bearing pin will need to be swapped across from the OEM linkage at time of install.  

Instruction included

Designed and CNC Machined at Krooztune HQ here in Australia by Qualified Engineers and Suspension Professionals.   Machined from 6061 Alloy specifically sourced from NZ and USA. 

Made in Australia 

Designed to lower your Suzuki RMZ250  -30mm 

Fits:

Suzuki RMZ250 2010-2012

Linkage includes Pre Installed Bearings for ease of fitment.  Seals and Bearing pin will need to be swapped across from the OEM linkage at time of install.  

Instruction included

Designed and CNC Machined at Krooztune HQ here in Australia by Qualified Engineers and Suspension Professionals.   Machined from 6061 Alloy specifically sourced from NZ and USA. 

Made in Australia

Designed to lower your Suzuki RMX450Z  -30mm 

Fits:

Suzuki RMX450Z 2010-2017

Linkage includes Pre Installed Bearings for ease of fitment.  Seals and Bearing pin will need to be swapped across from the OEM linkage at time of install.  

Instruction included

Designed and CNC Machined at Krooztune HQ here in Australia by Qualified Engineers and Suspension Professionals.   Machined from 6061 Alloy specifically sourced from NZ and USA. 

Made in AUSTRALIA