Piaggio Variator Roller 6.5g
- Brand: Mortch Motor
- Product Code: MIPIAGGIO-4031-6.5
- Product Viewed: 8
- Availability: In Stock
- Weight: 0.05kg
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Piaggio / Vespa Variator Roller 6.5g
Part Number: MIPIAGGIO-4031-6.5
Product Type: CVT Roller Weight | Variator Roller
Size: 19 x 15.5 mm | Weight: 6.5g
Fits Piaggio / Vespa 50cc 2T/4T engines, and Aprilia, Derbi, Gilera, Italjet, Malaguti models with Piaggio engines
This is a high-quality CVT roller weight (variator roller), part number MIPIAGGIO-4031-6.5. Roller weights are core components of the CVT variator system, installed in the tracks of the drive pulley. As engine speed increases, the roller weights move outward by centrifugal force, changing the effective diameter of the pulley to achieve continuously variable transmission. This product measures 19 x 15.5 mm and weighs 6.5g. Manufactured from high-strength wear-resistant engineering plastic with precise dimensions and consistent weight, it ensures smooth shifting and responsive performance.
Product Information:
- Part Number: MIPIAGGIO-4031-6.5
- Size: 19 x 15.5 mm (diameter x width)
- Weight: 6.5g
- Material: High-strength wear-resistant engineering plastic
- Quantity per vehicle: 6 pieces (refer to service manual)
🔧 Quality Assurance: Manufactured to strict OEM specifications with precise weight tolerance and dimensions fully compliant with 19 x 15.5 mm standard, ensuring consistent performance identical to genuine parts.
Part Number:
MIPIAGGIO-4031-6.5
Size:
19 x 15.5 mm
Weight:
6.5g
Material:
Wear-resistant Plastic
Package:
6 pieces/pack
- Zip 50 2T
- Zip 50 4T
- Zip iGet 50 4T
- Fly 50 2T
- Fly 50 4T
- Liberty 50 2T
- Liberty 50 4T
- Typhoon 50 4T
- ET2 50 2T
- ET4 50 4T
- LX 50 2T
- LX 50 4T
- LXV 50 2T
- LXV 50 4T
- S 50 2T
- S 50 4T
- Sprint 50 2T
- Sprint 50 4T
- Primavera 50 2T
- Primavera 50 4T
- Aprilia SR50 variants
- Aprilia Sportcity One 50
- Aprilia Scarabeo 50
- Derbi GP1 50
- Gilera Runner 50
- Gilera Stalker 50
- Italjet Jet-Set 50
- Italjet Torpedo 50
- Malaguti Ciak 50
- Malaguti Centro 50
📌 Fitment Note: The 19 x 15.5 mm roller size is widely used on most Piaggio/Vespa 50cc 2T and 4T models from around 1998 onward. Model year and exact variant still matter for correct fitment. Please verify your vehicle's year and original roller specifications before purchasing. If your model is not listed, please contact customer service for confirmation.
- Precise Weight: Each roller is strictly controlled at 6.5g, ensuring the CVT system operates to design specifications and maintains original shifting characteristics.
- Standard Size: 19 x 15.5 mm outer diameter and width, strictly conforming to Piaggio/Vespa OEM specifications, rolling smoothly in the variator tracks without binding.
- Wear-Resistant Material: Made from high-strength wear-resistant engineering plastic with a smooth surface for long service life.
- CVT Core Component: Directly affects vehicle acceleration performance and shifting smoothness; a key wear item in CVT maintenance.
- Cost-Effective: Regular replacement of roller weights restores optimal CVT performance at low cost with significant results.
Follow these steps when replacing roller weights to ensure proper CVT system operation. This procedure requires special tools and is recommended to be performed by a professional technician.
🔧 Preparation & Removal
- Confirm new roller weights are MIPIAGGIO-4031-6.5 (19 x 15.5 mm, 6.5g), 6 pieces/pack.
- Prepare CVT special tools, torque wrench, cleaning cloth, and CVT-specific grease.
- Remove the CVT transmission cover and drive pulley assembly, noting the installation order and orientation of all components.
🧽 Install New Roller Weights
- Take out the new roller weights (6 pieces) and check for damage or deformation.
- Thoroughly clean the variator slide tracks, removing old grease and debris.
- Install the new roller weights into the tracks in the same orientation as the originals, ensuring each is properly seated.
- Apply a small amount of CVT-specific grease to the tracks and roller surfaces.
✅ Post-Installation Check
- Reassemble the drive pulley assembly to the torque specifications in the service manual.
- Check that all components are correctly installed with no looseness or interference.
- Start the engine and check for smooth CVT operation and unusual noises.
- Perform a road test to confirm acceleration performance and shifting characteristics are restored to normal.
💡 Installation Tips
- Always replace as a complete set (6 pieces) to ensure consistent weight across all rollers.
- Note the original installation orientation of the rollers before removal; install new ones in the same direction.
- Use CVT-specific grease only; do not use regular grease.
- If you lack repair experience, it is strongly advised to have a professional technician perform the work.
- Please verify that this part fits your specific vehicle model and year. Many vehicles share similar names but use different components depending on year or market region.
- We strongly recommend cross-checking with your vehicle's owner's manual or contacting us for confirmation before placing your order.
- Product images, measurements, and descriptions are for reference only. Slight variations in color or appearance may occur due to manufacturing batches or photography lighting—functional specifications remain identical to the ordered part.
- Professional installation is mandatory. Mortch Motor assumes no liability for damages, injuries, or losses resulting from improper installation, misuse, unauthorized modification, or abnormal operation.
- All listed prices EXCLUDE shipping costs, import duties, taxes, and customs clearance fees. These charges (if applicable) are determined and collected by your local customs authority and are solely the buyer's responsibility.
- In case of return due to unpaid duties/taxes or refusal to clear customs, the buyer shall bear the original shipping cost, return shipping fees, and any associated administrative charges deducted from the refund.
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