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Top 10 Belt Drives Ltd. products – best-selling models in 2025!
Ranking updated: 1 December 2025'
Discover Belt Drives Ltd.’s best-selling products. Top 10 hits loved by motorcyclists – see which models are number one in 2025!
Top 10 products
- PULLEY 47 TOOTH FRONT ENGINE SHAFT SPLINE 3'' 8M
- TRANSMISSION PULLEY 33 TOOTH
- MONSTER TOP FUEL BELT DRIVE KIT 14 MM X 85 MM (3-3/8'') WITH CLUTCH AND SIDEGUARD
- REPLACEMENT PRIMARY BELT 85 TOOTH 3-3/8'' 14M
- PULLEY 48 TOOTH FRONT ENGINE SHAFT SPLINE 1-5/8'' 8M
- PULLEY 45 TOOTH FRONT ENGINE SHAFT SPLINE
- OFFSET FRONT PULLEY FOR SPACER INSERT 47 TOOTH 3'' 8M
- OFFSET FRONT PULLEY FOR SPACER INSERT 48 TOOTH 3'' 8M
- REPLACEMENT PRIMARY BELT 130 TOOTH 1-5/8'' 8M
- Primo Drive Belt
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1. PULLEY 47 TOOTH FRONT ENGINE SHAFT SPLINE 3'' 8M
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General description
Precision machined out of aluminum and then hard anodized
Made in U.S.A.
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2. TRANSMISSION PULLEY 33 TOOTH
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General description
Made from 6061 T-6 aluminum, then hard anodized for durability
One-third the weight of stock pulleys
All 85-06 Big Twin pulleys come with a spacer for use on 85-93 models
When using a larger or smaller pulley, change in belt length and modifications to the axle adjustment slots may be required
Made in the U.S.A.
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3. MONSTER TOP FUEL BELT DRIVE KIT 14 MM X 85 MM (3-3/8'') WITH CLUTCH AND SIDEGUARD
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General description
Kits include front and rear pulley, 3-3/8" belt, nine aramid friction plates and 11 steel clutch plates; use up to nine springs for varying pressure to accommodate any motor size
Include oil filter mount between the pulleys
Polished outboard bearing support; outboard support is reversible and the back side is channeled for another distinct look, but only the flat side is polished
Replacement components available separately
Made in the U.S.A.
Systems are not designed for use with floorboards.
delivery 0 €€4,735.82
Product ID: 510477
MONSTER TOP FUEL BELT DRIVE KIT 14 MM X 85 MM (3-3/8'') WITH CLUTCH AND SIDEGUARD Check -
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4. REPLACEMENT PRIMARY BELT 85 TOOTH 3-3/8'' 14M
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General description
For BDL primary drives
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5. PULLEY 48 TOOTH FRONT ENGINE SHAFT SPLINE 1-5/8'' 8M
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General description
Precision machined out of aluminum and then hard anodized
Made in U.S.A.
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6. PULLEY 45 TOOTH FRONT ENGINE SHAFT SPLINE
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General description
Precision machined out of aluminum and then hard anodized
Made in U.S.A.
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7. OFFSET FRONT PULLEY FOR SPACER INSERT 47 TOOTH 3'' 8M
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General description
Precision machined out of aluminum and then hard anodized
Made in the U.S.A.
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8. OFFSET FRONT PULLEY FOR SPACER INSERT 48 TOOTH 3'' 8M
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General description
Used to offset motor pulley for belt alignment
For 3" systems
Spacer inserts not included
Made in the U.S.A.
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9. REPLACEMENT PRIMARY BELT 130 TOOTH 1-5/8'' 8M
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General description
For BDL primary drives
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10. Primo Drive Belt
