-25 mm Lowering Rear Shock Spring PD Valve Recommended viscosity and air chamber:

Recommended viscosity and air chamber:

Compared to stock

you can easily stiffen or soften the shock’s compression stroke to suit your riding style

so your OEM suspension must be sent in for conversion (or processed by a trained dealer)

We retain linear fork springs but choose a slightly firmer rate and pair it with Wilbers Zero Friction fork oil and an adjusted air chamber

-25 mm Lowering Rear Shock Spring PD Valve Recommended viscosity and air chamber:The Hyperpro Progressive Rear Spring enhances cornering, reduces braking distance, and improves overall bike balance and feedback, fitting onto the original shock for easy installation.