Yokomo B9-SSP240A High Bore Progressive Shock Spring for BD9  [B9-SSP240A]

Track-Focused Spring Upgrade

Yokomo's B9-SSP240A Progressive Shock Spring is engineered for the BD9 chassis and produced with AXON collaboration. The unequal pitch winding creates a progressive 2.40 to 2.70 rate, tailored to the demands of high big bore short shock arrangements.

Tuning Advantages

A progressive coil provides a softer initial stroke with firmer support as travel increases, which helps control roll and maintain traction across varying surfaces. That behaviour gives tuners more scope to balance grip and responsiveness without changing core damping components.

Compatible Yokomo Platforms

This spring is suitable for models including MRTC-BD10FF, MSR-BDFWD and MRTC-BD919. It is a solid choice when you want finer rate adjustment for short shock layouts at the track.