Streetbox Preload Adjuster:Hook Wrench firmer spring rate compared to

firmer spring rate compared to the standard setup

Robust Build Quality: Manufactured and assembled in house in YSS's state of the art facility you can be assured quality control in unmatched

This configuration ensures more controlled movement and better traction

we recommend our in-house special modification 016-0200-18 (€489 including materials) to significantly enhance sliding and damping performance

our new GP5 front fork oil with SAE 5 viscosity delivers ideal response and damping behavior

Streetbox Preload Adjuster:Hook Wrench firmer spring rate compared toThe Hyperpro Streetbox includes a progressive front fork spring kit and an adjustable emulsion shock. This comprehensive solution improves cornering, braking, and overall bike balance, making it ideal for street use.