This NCY Super Transmission Kit brings sharper acceleration, reduced bog and a higher top-end ceiling to your Yamaha Zuma 50 2T, Jog 50 or compatible E-TON 50cc two-stroke. Instead of chasing performance one component at a time, upgrade the major CVT components together with matched NCY racing parts. Feel a stronger pull as you accelerate, smoother power delivery through the rev range and more freedom to dial in the response that makes your scooter fun to ride.
Features
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Complete performance upgrade: Matched variator, drive face, clutch, clutch bell, secondary slider, rollers and compression spring improve acceleration, reduce bog and raise the top-end ceiling.
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Gen 4 racing clutch: The green large-shoe clutch pairs generous friction pads with red springs for performance-focused engagement.
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Cooler, cleaner clutch operation: The PTFE-coated star-vented racing bell promotes heat dissipation and resists glazing, helping maintain consistent engagement through repeated acceleration.
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Ultralight outer drive face: Bronze-anodized construction reduces rotating mass for a more responsive CVT setup.
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Smoother power delivery: NCY's dual-range secondary slider eliminates the flat spot, while the yellow 1500 RPM compression spring provides stiffer secondary engagement.
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Three tuning options included: Six rollers each in 5g, 6g and 7g let you tailor CVT response to your riding style and engine build without purchasing three separate roller sets.
Kit Contents
- NCY CVT variator
- NCY ultralight bronze-anodized outer drive face
- NCY Gen 4 large-shoe racing clutch, green with red springs
- NCY PTFE-coated star-vented racing clutch bell
- NCY dual-range secondary slider
- NCY 15x12mm roller weights: 5g, 6g and 7g sets, six rollers per set
- NCY yellow 1500 RPM compression spring
Specifications
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Brand: NCY
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Part number: 1200-1197
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Application: Yamaha-based horizontal Minarelli two-stroke CVT
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Roller dimensions: 15mm diameter x 12mm width
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Roller weights: 5g, 6g and 7g
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Total rollers: 18, six per weight
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Compression spring: 1500 RPM, yellow
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Country of origin: Taiwan
Model Fitment
Note: Does NOT fit 1st Gen (pre-2002) Zumas or 4-stroke Zuma 50F models.
| Make |
Model |
Years / Notes |
| Yamaha |
Zuma 50 (2T) |
2002–2011 bugeye models only, not pre-2002 or 4T |
| Yamaha |
Jog 50 |
All two-stroke horizontal Minarelli models |
| E-TON |
Beamer II, Beamer III, Matrix 50 |
Two-stroke models |
Tuning tip: Use light Molybdenum (Moly) grease only on clutch sheave slider pins. Keep belt surface and variator ramps clean and dry. Pair with a quality drive belt for best results.
Not intended for use on public roads or land. Not legal for use in California on pollution-controlled vehicles — check local laws before installing.
