Variator Pulley
TWH's variator pulley components are designed for optimal CVT transmission performance. Each product is precision-engineered to improve power delivery, reduce slippage, and enhance throttle response. Our pulley sets are compatible with both OEM replacement and performance tuning applications.
AEROX Variator Pulley Set
Balanced 139/140 mm system—quick takeoff, steady belt tracking.
The AEROX Variator Kit is engineered for YAMAHA AEROX scooters and includes a 139 mm variator pulley (24 mm bore), a 140 mm pulley fan, ramp plate, and center sleeve. Each part is precision-machined for flatness and balance to support crisp drive engagement and reliable belt contact. Total kit weight: 840 g.
🔹 139 mm Pulley / 24 mm Bore — Sized for a stable belt path and contact
🔹 140 mm Pulley Fan — Pairs with shrouds to guide airflow over the drive face
🔹 Ramp Plate Geometry — Stock-layout interface for accurate assembly
🔹 Balanced Components — Reduced vibration for consistent operation
🔹 Complete Kit — Pulley, ramp plate, pulley fan, center sleeve included
Product Specifications
✔ Pulley OD / ID: Ø139 mm / Ø24 mm
✔ Pulley Fan OD: Ø140 mm
✔ Total Weight (Kit): 840 g
✔ Fitment: YAMAHA AEROX models (year/market dependent)
✔ Focus: Quick engagement, steady belt tracking, straightforward install
✔ Package Includes: Pulley, ramp plate, pulley fan, center sleeve
Installation Notes
• Verify roller/slider weights and drive belt condition (not included).
• Follow OEM torque and lubrication practices for the variator nut and sleeve.
• Check fan–shroud clearance after assembly and observe belt tracking on first run.
Power You Can Trust.
NMAX Variator Pulley Set
Precision-matched 139/140 mm pairing—smooth engagement, consistent belt contact.
The N-MAX Variator Kit is engineered for YAMAHA N-MAX scooters and includes a 139 mm variator pulley (24 mm bore), a 140 mm pulley fan, ramp plate, and center sleeve. Each part is precision-machined for flatness and balance to support smooth drive engagement and reliable belt contact. Total kit weight: 840 g.
🔹 139 mm Pulley / 24 mm Bore — Sized for stable belt path and contact
🔹 140 mm Pulley Fan — Matches shrouds to guide airflow over the drive face
🔹 Ramp Plate Geometry — Stock-layout interface for accurate assembly
🔹 Balanced Components — Reduced vibration for consistent operation
🔹 Complete Kit — Pulley, ramp plate, pulley fan, center sleeve included
Product Specifications
✔ Pulley OD / ID: Ø139 mm / Ø24 mm
✔ Pulley Fan OD: Ø140 mm
✔ Total Weight (Kit): 840 g
✔ Fitment: YAMAHA N-MAX models (year/market dependent)
✔ Focus: Smooth engagement, consistent belt contact, straightforward install
✔ Package Includes: Pulley, ramp plate, pulley fan, center sleeve
Installation Notes
• Verify roller/slider weights and drive belt condition (not included).
• Follow OEM torque/lubrication practices for the variator nut and sleeve.
• Check fan–shroud clearance after assembly and belt tracking on first run.
Power You Can Trust.