Krooztune
WP AER35 Air to Spring Conversion 50cc
Air to spring conversion to suit WP AER35 (ATS). KTM-HSQ-GAS 50cc bikes
Install tool required also - Install Tool
This ATS fork kit works in conjunction with the OEM single spring (RHS) / air (LHS) setup , transforming this forks action and returning it to a more conventional ‘dual’ spring fork.
The oem system is great for adjusting from soft to hard but simply has too much fork stiction ( due to the large Air piston) and poor performance for the light weight 50 and 65cc racers. Our spring conversion Eliminates the need to constantly check air pressure and returns the WP 35 fork back to a smooth operation as to be expected for light weight riders, improving turns, tyre grip and less front end wash outs.
Available with a single spring to match the oem rate with riders under 30kg.
Fits: 50cc / E5 KTM, Husqvarna and Gas Gas as below:
KTM – 2017-2021
50 SX - SX-E 5
Husqvarna– 2017 - 2021
TC 50
Gas Gas – 2020-
MC50
Kit includes :
-Air to spring hard parts
-Instruction
-Single spring to match oem spring in RHS fork - (Note: OEM runs air LHS and spring RHS)
Install tool can be purchased from Catalog - tools - AER35 install tool $39.95
Product information
PRODUCT FEATURES
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F.A.Q.
They appreciate cut and details, things that aren't so obvious.
Do you offer setup advice with this product?
Absolutely.
Every purchase includes access to our Setup Form, where we provide personalised guidance on your ideal settings, spring rates, and upgrade choices.
Can I purchase items with another currency?
Yes, you may select a currency based on your personal preference. When you select your country in the country selector and set to your country’s version of the website, you will see prices listed in the regional currency.
Can I make changes to my order after it’s been placed?
Email Info@krooztune.com asap and quote your order number. Our emails are checked daily before shipping out any orders
What if I have issues or need support after buying?
We’re here to help.
You can reach us anytime for setup adjustments, technical questions or installation support. Krooztune products are backed by real riders and real workshop support.
Do I need to pay extra tariffs or taxes when ordering from the USA?
No — Krooztune covers all USA tariffs and import taxes.
The price you see at checkout is final, with no hidden fees or surprise charges upon delivery.
