NCY CVT KIT (139QMB)
Description: NCY Super Transmission Set is one of the best dollar-for-dollar bolt-ons to improve your 139QMB, Buddy50, or RoughHouse! Quicker acceleration, higher top speeds, and makes your CVT the smoothest operating trans in town! From rapid downshifting to slow cruising, this thing is smooth. Ultralight balanced components, oversized wear pads, and state of the art polytetrafluoroethylene (PTFE) coatings ensure superior performance and long service life.
NOTE: Recommend using a new belt with this kit and graphite or moly grease when assembling. Must re-use stock variator boss, variator fan overlay, washers, clutch back-ramp plate, clutch nut, and nuts. RoughHouse must re-use drive face and belt-size 738-18-30 (sold separately). Most parts also will fit Honda DIO's CVT.
Installation: Make sure variator drive face is seated properly and not get its teeth chewed by the bendix or variator shaft splines: 1. Slack the belt by opening the CVT clutch gives belt slack to the variator side. 2. Then install the variator drive face while lifting the slack belt further away from the center boss if done properly should not see any splines between variator drive face slop-side and boss flat-side. Should be flushed together. 3. Then install existing variator fan, kick start gear, washer, and hand-tight nut. 4. Finally, torque nut to 30-35ft lbs. For reassurance please consult your manufacturer variator torque specs.
1. Includes NCY Drive Face CNC-Machined, Drive Face, and Kickstart him.
• Drive Face I.D: 13.5mm (Splines 26) / O.D: 112.3mm (Teeth 63) / H: 4.2<13.5mm
• Stainless Steel Kickstart Him I.D: 13.5mm (Splines 26) / O.D: 34.32mm / H: 4<7.3mm
2. Includes NCY Variator 89mm Coated Gold, Roller weights, Variator housing, Variator slides, and Variator top.
• 1x Alumin-Alloy Housing Teflon Coated: I.D: 20mm / O.D: 89mm / H: 32.44mm
• 1x Metal Top: I.D: 14.15mm / O.D: 73.50mm / H: 11.58mm
• 6x Red Roller Weights: 16x13 9g
• 3x Plastic Black Slides
3. Includes NCY Secondary Slider, slider (torque driver) and O-rings.
• Slider Funnel ID: 33.5mm / OD: 43mm / H: 32.70mm
• Slider Plate OD: 118mm
4. Includes NCY Compression Spring 1000 RPM, Compression spring.
• Spring Comp: 1,000 RPM / L: 106mm (black)
• Spring I.D.: 49.6mm / O.D: 57.8mm
• Wire Gauge: 4mm
5. Includes NCY Clutch Performance, Clutch housing, Clutch springs, and Clutch weights.
• Clutch: I.D: 24<28mm / O.D: 105mm / H: 29.55mm
• 3x 2000rpm Clutch Spring (red)
• 3x Clutch Weights (gray)
6. Includes NCY Clutch Bell, Clutch bell.
• Iron Clutch Bell: ID: 107mm / O.D: 114.85mm / H: 34.54mm
• Splines: 22 / I.D: 11<12mm / O.D: 16.95mm / H: 17.75mm
• Fit Belt Size: 669, 729, 738, 788
• Fit Dowel Pin Set (8x14mm)
• Fit QMB 49/50cc+
Supported Models: GY6 139QMB 49cc-50cc engines, Buddy50, Filly 50, Kymco, QLink, RoughHouse, SYM, TaoTao, and virtually any scooter engine with these measurements.
Item Weight & Package Dimensions:
• 3.862 pounds | 17.5” (L) x 6.4” (W) x 5” (H)
- Stock: 17
- Brand: NCY
- Reward Points: 6
- Model: 1200-1171
- Weight: 5.03lb
- Dimensions: 17.50in x 6.40in x 5.00in
- SKU: 1200-1171