Belt Drives Ltd Closed Belt Drive Kit BDL-EVB-3T-4 for Harley-Davidson (Big Twin 1970-1983)
Upgrade your motorcycle's powertrain with the Belt Drives Ltd Closed Belt Drive Kit. Engineered specifically for 1970–1983 4-speed Big Twin models with chain final drive, this direct bolt-in primary drive assembly delivers dependable power transfer and smooth operation inside closed primary setups.
The included high-performance Competitor Clutch features premium Kevlar clutch plates and a heavy-duty clutch basket fitted with 12 cylindrical replaceable clutch dogs for constant, positive steel plate contact. A polished pressure plate equipped with nine shoulder bolts and springs facilitates straightforward installation while ensuring consistent clamping pressure under demanding riding conditions.
Key Features
| Brand | Belt Drives Ltd |
| Manufacturer Part Number | BDL-EVB-3T-4 |
| Product Type | Closed Primary Belt Drive Kit |
| Belt Width | 3.8 cm |
| Friction Plate Material | Kevlar |
| Pressure Plate Finish | Polished |
| Installation Type | Bolt-in |
| Product Weight | 6.8 kg |
Highlights
- Designed for a direct bolt-in application
- Includes high-performance BDL Competitor Clutch
- Durable Kevlar clutch plates for maximum grip and performance
- Clutch basket features 12 cylindrical replaceable clutch dogs
- Polished pressure plate with nine shoulder bolts and springs for straightforward installation
Compatibility
Fits 1970–1983 Harley-Davidson 4-Speed Big Twin models equipped with chain final drive.
What's included
- Closed primary belt drive system components (1-1/2 in / 3.8 cm width)
- BDL Competitor Clutch assembly with Kevlar plates
- Clutch basket with 12 replaceable dogs
- Polished pressure plate with nine springs and shoulder bolts
Frequently asked questions
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