NCY Forged Secondary Sliding Sheave; Yamaha Zuma 125 2022+

The NCY Forged Secondary Sliding Sheave is a high-strength replacement for the 2022+ Yamaha Zuma 125, machined from forged aluminum to deliver superior rigidity and durability over the OEM cast unit. The secondary sliding sheave is the movable half of the driven pulley — it controls belt clamping force on the output side of the CVT, directly influencing how the transmission responds to load and throttle input. A forged construction reduces flex under hard acceleration, maintains consistent belt contact geometry, and extends the service life of both the sheave and the drive belt.

• Fits: 2022+ Yamaha Zuma 125 (liquid-cooled, 4-valve)
• Forged aluminum construction for greater strength and reduced flex vs. OEM cast unit
• Maintains precise belt contact geometry for consistent CVT shift behavior
• Compatible with OEM and NCY secondary clutch assemblies
• Direct bolt-on fitment — no modifications required
• Sold individually

California Residents: This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.

Yamaha Zuma