Yokomo YZ-630W3 Center Pulley Stopper for Works'91 TeamSpec, aluminum center pulley stopper for YZ-W91TS/YZ-W91 chassis  [YZ-630W3]

Center pulley stopper

This YZ-630W3 is an aluminium stopper designed to secure the center pulley on Works'91 TeamSpec setups, provided by Yokomo as a dedicated replacement part for affected center pulley assemblies. It is an RC-scale accessory intended solely for remote-controlled chassis use.

Compatibility is limited to the Works'91 TeamSpec platforms specified by the manufacturer, ensuring it matches the center pulley mounting points on supported YZ series frames. The part's role is to hold the pulley position under belt tension and during suspension travel, helping maintain belt alignment during track use.

Installation is straightforward for technicians familiar with belt-driven touring cars: remove the original stopper from the center pulley assembly, fit the YZ-630W3 in the same location, and verify pulley rotation and belt alignment before running. During setup, check for play and retighten fasteners to the chassis manufacturer's recommended torque values.

Tuning note: this stopper is a maintenance and reliability item rather than a performance modifier; its primary effect is consistent pulley location which supports repeatable belt tension and drivetrain behavior.