Progressive Fork Springs BMW K 100 RS

The Wilbers-Promoto progressive fork springs are designed as a direct replacement for the original components on the BMW K 100 RS (BMW 100) models manufactured between 1983 and 1989. Key technical specifications include a progressive spring rate, requiring SAE 15 oil and 1 liter per fork, with a specified air gap of 170 mm. The progressive nature of these springs offers a softer initial response for improved comfort over uneven surfaces and smaller impacts, while progressively stiffening to limit front-end dive during braking and prevent the fork from bottoming out. This results in improved rigidity, stability, and overall road holding. Wilbers emphasizes a commitment to quality manufacturing, offering a 9-year warranty on these fork springs. They are intended for road use, aiming to provide a more precise and responsive feel from the front suspension without altering the original setup significantly. Important Note: To ensure correct fitment and avoid delivery errors, customers are required to complete a specific information form before adding the product to their cart.