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16x13mm 4g Variator Roller Weights for GY6 139QMB 50cc Scooter Moped
16x13mm 4g Variator Roller Weights for GY6 139QMB 50cc Scooter Moped
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Product Overview
These 16x13mm 4g variator roller weights are designed as replacement or performance tuning parts for many GY6 139QMB 49cc and 50cc scooters, mopeds, TaoTao, Jonway, racing scooters, and similar small CVT drive systems.
The variator roller weights help control how the CVT variator shifts during acceleration. Worn, flat-spotted, or mismatched roller weights may cause poor acceleration, unstable RPM, slower takeoff, vibration, or reduced scooter performance.
With a 4g weight, these rollers are suitable for riders who need lighter variator weights for quicker engine response and tuning adjustment. Please compare the roller size, weight, variator type, and product photos with your original rollers before ordering.
Product Compatibility
| Compatible Vehicle / Engine | Application |
|---|---|
| GY6 139QMB | 49cc / 50cc scooter variator roller replacement |
| TaoTao 50cc Scooter | Compatible CVT tuning application when size matches |
| Jonway Scooter / Moped | Variator roller weight replacement |
| Racing Scooter / Moped | 16x13mm 4g roller weight upgrade |
| Mini Bike / ATV / Quad | Compatible only if using the same 16x13mm CVT roller size |
⚠️ Please verify your original roller size and weight before ordering. Roller weights must match the variator size.
Specifications
| Item | Details |
| Product Type | Variator Roller Weights |
| Roller Size | 16mm x 13mm |
| Outer Diameter | 16mm |
| Height / Width | 13mm |
| Weight | 4g Each |
| Compatible Engine | GY6 139QMB 49cc / 50cc |
| Compatible Vehicles | Scooter / Moped / Mini Bike / ATV / Quad |
| Application | CVT variator tuning and replacement |
| Condition | 100% Brand New |
Key Features
- 16x13mm 4g variator roller weights for GY6 139QMB 50cc scooters
- Suitable for TaoTao, Jonway, racing scooter, and moped CVT applications
- Helps replace worn, flat-spotted, or damaged variator rollers
- 4g weight can support quicker RPM response in compatible tuning setups
- Designed for scooter CVT drive system maintenance and performance adjustment
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Fitment FAQ
Will this part fit my specific model and year?
These 16x13mm 4g variator roller weights may fit many GY6 139QMB 49cc and 50cc scooters, mopeds, TaoTao, Jonway, and similar CVT-equipped vehicles. Fitment depends on the variator roller size, weight, and CVT design rather than model year alone.
Do I need to match the OEM part number?
Matching the OEM part number is helpful, but for variator roller weights, the most important details are the 16mm x 13mm roller size and 4g weight. Please compare your original roller dimensions before ordering.
What models or situations does this part not fit?
These rollers may not fit variators requiring a different roller size, different weight range, larger scooter engines, non-CVT drive systems, or motorcycle-style manual transmissions. They are not suitable if your original rollers are not 16x13mm.
What should I check before ordering?
Before ordering, check your original roller outer diameter, width or height, weight, variator size, drive belt condition, and product photos. Make sure your scooter uses 16x13mm variator roller weights and that 4g is suitable for your tuning setup.