Streetbox Preload Adjuster:Hook Wrench achieving optimal negative spring deflection

achieving optimal negative spring deflection while maintaining the original seat height

– New: fork oil included

while our Touring‑proven Zero Friction fork springs and damping tune deliver a much better fork response

a groundbreaking advancement in motorcycle handling and comfort

These refinements collectively provide improved comfort

Streetbox Preload Adjuster:Hook Wrench achieving optimal negative spring deflectionThe 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.