NCY Performance Super Transmission Kit - Yamaha Zuma 50 2T

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.

Key Features

• 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.
• Gen 4 racing clutch: The green large-shoe clutch pairs generous friction pads with red springs for performance-focused engagement.
• Cooler, cleaner clutch operation: The PTFE-coated star-vented racing bell promotes heat dissipation and resists glazing, helping maintain consistent engagement through repeated acceleration.
• Ultralight outer drive face: Bronze-anodized construction reduces rotating mass for a more responsive CVT setup.
• Smoother power delivery: NCY's dual-range secondary slider eliminates the flat spot, while the yellow 1500 RPM compression spring provides stiffer secondary engagement.
• 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

Technical Specifications

• Brand: NCY
• Part number: 1200-1197
• Application: Yamaha-based horizontal Minarelli two-stroke CVT
• Roller dimensions: 15mm diameter x 12mm width
• Roller weights: 5g, 6g and 7g
• Total rollers: 18, six per weight
• Compression spring: 1500 RPM, yellow
• Country of origin: Taiwan

Compatibility

Note: Does NOT fit 1st Gen (pre-2002) Zumas or 4-stroke Zuma 50F 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.

• Complete CVT kit — variator, drive face, clutch, clutch bell, secondary slider, roller weights, and compression spring
• NCY Gen 4 green racing clutch with large friction pads and red springs
• PTFE-coated star vented racing clutch bell for heat dissipation and anti-glaze
• Bronze anodized outer drive face — ultralight construction
• NCY dual-range secondary slider eliminates flat spot in power delivery
• 1500 RPM yellow compression spring for stiffer secondary engagement
• Three sets of 15x12 roller weights: 5g, 6g, and 7g (6 rollers per set)
• Improved acceleration, reduced bog and higher top-end ceiling
• Reduced rotating mass from ultralight drive face
• Clutch heat dissipation and anti-glaze performance
• Three included roller sets for response tuning

Part number: 1200-1197; Brand: NCY; Contents: variator, ultralight outer drive face, Gen 4 clutch, PTFE star-vented clutch bell, dual-range secondary slider, rollers and compression spring; Engine: Yamaha-based horizontal Minarelli 2T; Rollers: 15x12mm, 5g/6g/7g, six per set; Spring: 1500 RPM, yellow; Origin: Taiwan

Yamaha Zuma 50 2T (2002–2011 bugeye only — NOT pre-2002 or 4T), Yamaha Jog 50 (all 2T horizontal Minarelli), E-TON Beamer II/III/Matrix 50 (2T)