Springs are the first step to enhancing the performance of your fork and machine. The BITUBO kit with progressive spring rate provides variable support that stiffens according to compression, improving cornering stability without sacrificing sensitivity to small bumps. BITUBO uses a special steel alloy with a hard thermal treatment through shot peening for increased longevity and consistent performance over time.

Designed for roadster enthusiasts and riders seeking better control of the front end, this kit affects mass transfer management, dive under braking, and cornering stability.

The kit includes:

• 2 BITUBO progressive rate fork springs
• 1 liter of Motorex Racing Fork Oil (road/track formulation)

This package is particularly suitable for BMW K 75 RT, K 75 RT ABS, and K 100 RS ABS (indicated models), and serves as an ideal foundation before considering other adjustments (cartridges, oil, valve settings). Installation and balancing by a qualified workshop are recommended for optimal fork performance.