Yamaha YZ85 Black Series Complete Suspension Setup Kit

Fits Yamaha YZ85 2015–2027 models.

Complete front and rear upgrade. Smoother action. Custom tuned to your rider.

The Krooztune Black Series Complete Suspension Setup Kit combines our latest fork and shock upgrades in one coordinated package, delivering improved comfort, support and control across both ends of your YZ85.

Updated fork internals improve spring guidance and bottoming control, while our shock piston assembly and high- and low-speed compression adjuster deliver a more compliant, tuneable rear end.

Choose our proven base setup or have your kit custom configured to suit your rider’s weight, riding discipline, ability and preferred suspension feel. Drawing on years of Krooztune testing and an extensive setting bank, we match the fork and shock settings to work together.

A better foundation for performance

The standard KYB suspension provides a solid starting point, but basic fork spring guidance, limited bottoming control and restrictive shock damping leave room for improvement.

The Black Series kit addresses these mechanical limitations alongside the damping, creating a smoother, more controlled bike with support matched to the rider.

From a developing junior chasing comfort and confidence to an experienced racer needing stronger support, the complete kit brings the front and rear together for a more balanced, predictable feel.

Black Series fork upgrade

Improved spring guidance and alignment

Our updated design integrates the bottoming piston into the spring guide, keeping these components true and aligned as they work together.

This arrangement improves spring guidance and promotes smooth, consistent movement. It also simplifies cartridge assembly and servicing, making the components easier to align during a rebuild.

Redesigned hydraulic bottoming system

The improved hydraulic bottoming system delivers more controlled resistance towards the end of the stroke, helping reduce harsh bottoming on heavy landings and bigger impacts.

Combined with the rider’s selected damping setting, it provides confidence deeper in the travel while maintaining a comfortable, responsive feel through smaller bumps.

New compression pistons and coordinated damping

Our all-new 17 mm face compression pistons work with the selected base compression, mid-valve and rebound settings to deliver smooth bump absorption with support suited to the rider’s speed and discipline.

The result is a settled, responsive front end that offers:

• Smoother bump absorption

• Improved front-wheel grip and feel

• More controlled bottoming resistance

• Better hold-up for faster riding and bigger impacts

• Balanced compression and rebound for predictable handling

Black Series shock upgrade

Ready-to-install piston assembly

Our upgraded shock piston assembly comes built with the selected compression and rebound shim stacks, ready for fitting into the standard KYB shock.

The assembly includes a CNC-machined billet shaft nut, engineered for maximum thread engagement and secure installation.

Compression and rebound settings work together to improve bump absorption, control rear-end recovery and maintain support through rough, choppy conditions. For custom kits, the damping is matched to the rider and intended spring rate.

High- and low-speed compression adjustment

Our upgraded adjuster adds separate high- and low-speed compression adjustments, providing more scope to refine the shock’s behaviour trackside.

Fine-tune support under acceleration and through rolling bumps, then adjust the response to sharper impacts and heavy landings. Recommended starting adjustments are included with your setup specifications.

Easier spring preload adjustment

The CNC-machined alloy shock spring lockring in our Black Series finish makes preload adjustment easier, helping you set and maintain the correct rider sag.

Together, these upgrades deliver a more compliant and controlled rear end, with:

• Improved rear-wheel traction and drive

• Smoother bump absorption

• More stability under braking

• Better composure through rough, choppy conditions

• Greater scope for trackside compression tuning

Years of data. Your individual setup.

Our settings draw on extensive suspension dyno development and Australian track testing, from slippery hardpack to deep loam and sand.

For a custom setup, choose your riding discipline—motocross, off-road or supercross—then provide your rider’s weight, ability and preferred feel. We use these details to select and build coordinated fork and shock settings from our extensive data bank.

Your selected settings come installed in the supplied assemblies, with tuning instructions and shims included to make the compression softer or firmer if required.

Choose your setup

• Base Kit — Standard Setting: Supplied with our proven base settings and setup specifications.

• Custom Kit — Tuned to Your Rider: Complete the rider details form and we configure the fork and shock damping to suit your rider.

Kit includes

Fork components

• Updated spring guides with integrated bottoming pistons

• Improved hydraulic bottoming system

• All-new 17 mm face compression pistons

• Selected base compression shim stacks

• Selected mid-valve shim stacks

• Rebound tuning shims matched to your setup

Shock components

• High- and low-speed compression adjuster

• Main piston assembly with selected compression and rebound shim stacks

• Genuine KYB piston band and O-ring installed

• Nitrogen Gas bladder Cap with Schrader valve type

• Fast-adjust alloy shock spring lockring

Also included

• Setup specification sheets and recommended starting adjustments

• Instructions and shims for softer or firmer compression tuning

• Krooztune decal set

Select Custom Kit and complete the rider details form when ordering. We build your Black Series fork and shock components with your selected settings installed—ready for fitting into your suspension.