These parts were designed to allow you to convert your WP 4cs fork into a "works" performing kyb fork. This is the same fork that everyone has been raving about on the yamaha for years! These parts need to be installed by a skilled suspension tuner. You will need to source kyb cartridges or you can purchase here.
4cs to KYB conversion parts
international shipping will be added to your order. Please contact us for added fees.