Custom 3D-printed polymer washers optimized for Shimano electronic shift systems including R8170 and R9270 platforms.

These precision components expand button contact geometry to deliver measurably improved actuation consistency and shift accuracy.

The material composition balances minimal mass addition with superior durability, preserving bike dynamics while enhancing drivetrain responsiveness.

Installation is straightforward with immediate performance gains.

Set of two washers per package (enough for 1 bike)

Specifications

Specifically made for the Shimano R8170 Ultegra or R9270 Dura-Ace shifters. 

Mfr Claimed Weight
TBC