Product Details
Description
Naraku QMB139 Super Transmission Kit Eco
Key Details
- 137-2
Specifications
- Number of Splines: 22 Clutch Drum Spline Inner Diameter (peak to peak): 11.10mm Genuine Buddy 50, Genuine Roughhouse 50, Kymco Agility 50, QMB139 50cc/49cc , Various unlisted makes/models
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 49cc, 50cc, QMB139
- Engine Code: QMB139
- Fits Models / Common Applications: Genuine Buddy and Kymco and other compatible models may apply.
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Will this fit a QMB139 engine?
A: This SKU is listed as compatible with QMB139 engine-code fitment. Always compare your original part and scooter details before ordering.
Q: Will this fit a Genuine?
A: This SKU is listed with Genuine model fitment where the scooter also matches the listed engine or fitment notes.
Q: Is this for 49cc scooters?
A: This SKU is listed with 49cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 5.5 lbs |
|---|---|
| Dimensions | 8 × 7 × 7 in |
| Condition | New |
|---|
Naraku Super Transmission Kit Eco for GY6 QMB139 50cc scooters. Complete CVT transmission kit including variator drive face with sliding sheave and ramp plate, 6 roller weights, clutch shoe assembly with red springs, clutch bell, and spacer sleeve. Naraku SKU: 137-2.
Not intended for use on public roads or land.
- Complete CVT kit: variator, clutch shoe assembly, clutch bell, roller weights, and spacer
- Vented 6-spoke clutch bell design
- Clutch shoe assembly with red performance springs
- Roller weight size: 16x13mm (6g) — set of 6
- Fits GY6 QMB139 50cc/49cc engines
- Naraku SKU: 137-2
- Roller Weight Size: 16x13mm (6g)
- Variator Outer Diameter: 88mm
- Clutch Bell Inner Diameter: 107mm
- Clutch Bell Outer Diameter: 117mm
- Clutch Drum Splines: 22
- Clutch Drum Spline Inner Diameter (peak to peak): 11.10mm
- Clutch Shoe Inner Diameter (flat side to flat side): 24mm
- Clutch Shoe Inner Diameter (round side to round side): 28mm
- Clutch Shoe Overall Outer Diameter: 105mm
- Clutch Shoe Overall Height: 30mm
- Clutch Sheave: 119mm
- SKU: 137-2
Kit Contents
- Variator drive face with sliding sheave and ramp plate
- 6x roller weights (16x13mm, 6g)
- Clutch shoe assembly with red springs
- Clutch bell (6-spoke vented)
- Spacer sleeve
| Make | Model |
|---|---|
| Genuine | Buddy 50, Roughhouse 50 |
| Honda | Metropolitan (CHF50), Ruckus (NPS50) |
| Yamaha | Zuma 50F (BWS 50 Gen 2), C3/XF50 |
| Kymco | Agility 50, People 50 |
| SYM | Mio 50 |
| Various | All GY6 QMB139 50cc/49cc scooters |
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