GY6 50cc (139QMB) Honda Ruckus 50cc 16x13mm CVT Roller Weights

16x13mm CVT Roller Weights for Honda Ruckus and Compatible Models

These 16x13mm CVT roller weights are made for the Honda Ruckus and other compatible scooters. Changing them lets you adjust how the variator shifts, so the scooter suits how you ride. They are one of the GY6 50cc scooter parts that can improve performance without modifying the carburetor or exhaust.

CVT Tuning Capabilities

Swapping roller weights changes how quickly your scooter accelerates and when it shifts. Lighter rollers generally push upshifting later, so the engine stays at higher RPM. Heavier rollers bring upshifting in sooner, which keeps RPM lower. The right weight depends on your setup and how you like to ride.

Precision Manufacturing for Smooth Shifting

Each roller is held to tight tolerances so shifting stays consistent and smooth. The design is intended for the high-heat conditions inside a CVT, so they hold up across a range of riding conditions. Every set contains six rollers, giving you what you need to tune the variator.

Specifications

• Diameter: 16mm
• Width: 13mm
• Quantity: Six rollers per set
• Fits: GY6 50cc 139QMB engines (Honda Ruckus and other 16x13mm CVT variators)

Fitment

Compatible with:

• Honda Ruckus NPS50, all years
• Honda Metropolitan CHF50, 2002-2009
• Buddy 50 (International)
• RoughHouse 50 (Sport, Titanium)
• Rattler 50
• Black Cat 50
• Chicago Scooter Co. Go. 50 and Go. Max 50
• Wolf RX-50, Islander, Lucky, Blaze and MOTO
• TaoTao ATM50-A1, Pony, VIP and Thunder
• Lance Cali Classic 50, PCH 50 and Cabo 50
• Kymco Agility 50 and Super 8 50 four-stroke
• Bintelli Breeze, Havoc, Maddog 50 and PMZ50
• Yamaha C3 XF50, 2007-2011
• Yamaha Vino 50 four-stroke
• Yamaha Zuma 50F and 50FX four-stroke, 2012+
• GY6 49-80cc four-stroke engines (139QMA, 139QMB, 1P39QMB, YN139QMB, 147QMD and similar QMA/QMB configurations)

How to choose: Confirm your variator takes 16x13mm rollers (16mm diameter, 13mm width) before buying. An engine code alone won't tell you the roller size.

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