Product Description
The RDLN Adjustable Sheave Clutch Pulley is a high-performance rear torque driver designed for 125cc - 200cc GY6 transmissions. This unit features a unique six-groove design that allows riders to customize their transmission profile: choose the straight grooves for aggressive, linear acceleration or the curved grooves for smoother engagement and optimized top-end speed.
Technical Specifications:
- Clutch Seat OD: 142mm
- Pulley Needle Bearing: HK202918RST
- Internal Bearing: 6901RS (12mm ID)
- Groove Options: 3 Straight (Acceleration) / 3 Curved (Top Speed)
Engine Compatibility:
This pulley is a direct fit for "Large Frame" GY6 engines (157QMJ / 152QMI) commonly found in 125cc, 150cc, and 170cc scooters. It is the ideal companion for Big Bore Kits and Performance Variators.
157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:
| 157QMJ | 161QMK | 152QMI | 1P61QMK |
| YN1P57QMJ | 1P52FMI | 154FMI | JJ157QMJ |
| 1P57QMJ | BN157QMJ | BN161QMK-A | Other QMJ, QMK, and QMI models |
Don't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle.
Popular Models for Upgrades:
This is a top-tier upgrade for the following popular GY6-based scooters often modified for higher performance:
Wolf Brand Scooters
- Wolf Rugby II & EX-150: Heavy-duty commuters that benefit greatly from the improved torque of this pulley.
- Wolf Lucky II & Jet II: Retro-style 150cc models perfect for transmission tuning.
Tao Motor (TaoTao)
- Powermax 150: One of the most common models for performance mods; this pulley helps eliminate the "flat spot" in stock acceleration.
- Lancer 150 / VIP Future Champion: Large-frame sport models that require the 142mm outer diameter seat.
Ice Bear & Amigo
- Ice Bear Vision / Maddog 150: Essential for GY6-swapped Ruckus builds and Maddog clones where low-end take-off is critical.
- Amigo Rappi / Znen: High-style sport scooters that utilize the standard 157QMJ engine platform.
Lance & SYM (Carbureted Models)
- Lance PCH 150 / Cabo 150: Performance-oriented models built by SYM that use the GY6 architecture.
- Lance Cali Classic / Havana Classic 150: Retro cruisers that benefit from the "Curved Groove" setting for smoother city riding.
