Open primary belt drives offer a compact, high-performance alternative to chain drives, with smoother power delivery and often easier maintenance. This article highlights five well-regarded open belt drive kits and belts, detailing each product’s key features to help riders compare options for Harley-Davidson and similar cruiser applications.
Summary of chosen products:
| Product | Brand | Key Features |
|---|---|---|
| Belt Drives 8MM FL,FX REPL DRIVE BELT Driveline Open 2″ x 144 Teeth | Belt Drives | 8mm, 3in. Primary Belt – 140T |
| V-Twin 20-0613 – BDL Belt Drive Kit 8mm | V-Twin | BDL Belt Drive Kit 8mm |
| Belt Drives Ltd EV2PH-B17-B 2in. Open Belt Drive Kit – Black | Belt Drives | Two-piece motor plate design and 2in. primary belt |
| Belt Drives Ltd. Replacement Primary Drive Belt BDL-142-2 | Belt Drives | BDL-142-2 |
| BDL371443 Primary Drive Belt 8mm x 3″ 144 Tooth | Gaimeila | 8mm x 3″ 144 Tooth, 76/47 tooth compatibility notes |
Below are detailed product sections to aid comparison and decision making for riders considering an open primary belt drive upgrade or replacement.
Belt Drives 8MM FL,FX Open Belt Drive Belt
The Belt Drives product labeled 8MM FL, FX REPL DRIVE BELT is designed as a replacement belt for open belt drive configurations. It specifies an 8mm width with a 2-inch primary belt and a 140-tooth configuration, making it a straightforward option for compatible Harley-Davidson and similar platforms. The belt aims to deliver consistent torque transfer with reduced stretch over time, supporting smoother acceleration and reliability in open primary setups.
V-Twin Belt Drive Kit 8mm
The V-Twin 20-0613 kit is presented as a complete BDL Belt Drive Kit in an 8mm format. This option focuses on delivering a robust open-belt drive solution that pairs with a range of Harley-Davidson-style front and rear pulleys. The kit typically includes the belt and mounting hardware required for installation, emphasizing ease of integration and reliable power transfer for everyday riding and performance cruising.
Belt Drives Ltd EV2PH-B17-B Open Belt Drive Kit
The EV2PH-B17-B kit from Belt Drives Ltd emphasizes a two-piece motor plate design paired with a 2-inch primary belt. This configuration supports straightforward installation and compatibility with various open primary applications, offering a balance between rigid mounting and serviceability. It is a suitable choice for riders seeking a clean installation with reliable belt-driven performance in a 2-inch primary setup.
Belt Drives Ltd Replacement Primary Drive Belt BDL-142-2
This Belt Drives Ltd Replacement Primary Drive Belt is identified as the BDL-142-2, positioned as a direct replacement belt for specific open primary setups. It is designed to restore or enhance belt integrity and performance, ensuring stable torque transmission and minimizing slip under typical riding conditions. Suitable for riders seeking a straightforward belt replacement option with proven compatibility in compatible open primary systems.
BDL371443 Primary Drive Belt 8mm x 3″ 144 Tooth
The BDL371443 belt by Gaimeila is designed for Harley-Davidson Electra Glide and related models with 8mm width and 3-inch length, featuring a 144-tooth configuration. The product page notes compatibility with specific Harley bikes and includes part number mappings such as BDL-37144-3 and DS-360014. The belt aims to address wear and structural wear concerns in aging primary belts, offering a replacement option that supports reliable, long-term performance in open primary drives.
Buying Guide
Key considerations when selecting an open primary belt drive:
- Distance and compatibility: Confirm the belt width (commonly 8mm) and the primary pulley size to ensure a proper fit with your motorcycle’s front and rear pulleys.
- Primary belt length and tooth count: Ensure the belt length and tooth count align with the intended drivetrain geometry to avoid slippage or misalignment.
- Two-piece motor plates vs single piece: A two-piece motor plate design can simplify installation and maintenance, but may require precise alignment during mounting.
- Material and construction: Look for belts with reinforced materials and strong tensile strength to handle torque without excessive stretch.
- Replacement and maintenance: Consider belts that are easy to replace and come with clear installation guidelines or compatibility notes for common Harley-Davidson or similar platforms.
- Warranty and support: Check for product warranties and availability of replacement parts or belts for future maintenance.
- Intended use: For daily commuting vs. performance-oriented riding, select a belt that offers stable power transfer and low maintenance needs.
In evaluating these options, riders should weigh installation complexity, compatibility with existing pulleys, and the belt’s durability under typical riding conditions. Open belt drives can offer lower friction and cleaner aesthetics, but require careful selection to maintain reliability and proper alignment over time. Always verify vehicle-specific fitment and consult professional installation resources if needed.