A precision machined 15-tooth aluminum drive pulley designed for Works'91 TeamSpec applications. The YZ-630W2 replaces the stock pulley to reduce weight while keeping original mounting points and preserving basic fitment on the supported chassis.
This pulley changes drivetrain feedback rather than appearance: it alters gear mesh sensation and transient acceleration, so it is commonly used during gear ratio fine tuning and routine maintenance. Always check alignment and spur/pinion engagement after installation to prevent premature wear.
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