Fork Spring Kit Fork Upgrade Kit by shortening the shock absorber

by shortening the shock absorber slightly

The Wilbers suspension solution delivers a significantly improved fork response by replacing the original linear springs with progressive ones

Type 642 shock absorber

Because of the ZX‑6R’s track‑oriented design

Fork Spring Kit Fork Upgrade Kit by shortening the shock absorberHyperpro progressive fork springs are made of the best materials and best treatment for a durable solution to your bike. Hyperpro is known for developing the best solution for your bike. The progressive front fork kit will provide you easier cornering, a bike that is more stable, has less fork dive, reduces braking distance, reduces tire wear and more.