RDLN Adjustable Sheave Clutch Pulley - GY6 Performance

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:

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.

About RDLN: RDLN is a premier line of aftermarket performance upgrade systems and components for scooters. RDLN products are engineered to significantly improve the function, performance, and reliability of your vehicle, with the ultimate goal being an optimal balance of price, power, and performance. RDLN’s extensive field-testing network ensures each product exceeds customer re

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