Harddrive Drivetrain Adapter Ring - 2.22" to 1.99" Bore - Harley Touring, Softail, Dyna
About Harddrive
Harddrive is the house performance and replacement line built for American V-twins, covering everything from engine hardware and electrical to controls, lighting and chassis parts. The range is aimed squarely at Harley-Davidson and Indian riders who want a direct-fit part without dealer pricing, and it spans decades of model years — from Evolution-era Softails to current Milwaukee-Eight baggers.
When upgrading or servicing your Harley's drivetrain, sometimes you encounter components with different bore diameters. This Harddrive adapter ring provides a clean solution, stepping down from a 2.22" bore to a 1.99" bore. It allows you to fit larger drive components onto smaller shafts, maintaining compatibility across your V-twin system.
Why riders pick this
- Adapts 2.22" bore components to 1.99" shafts
- Lightweight cast design for minimal impact
- Direct-fit replacement for straightforward installation
- Ensures compatibility across V-twin drivetrain systems
This adapter ring is a crucial piece for riders who need to integrate drive components with differing bore sizes within their V-twin's drivetrain. It eliminates the need for extensive modifications, providing a straightforward and reliable solution to ensure all parts fit together as intended.
Seamless Component Integration
- Steps down bore diameter from 2.22" to 1.99"
- Lightweight cast construction minimizes added mass
- Designed as a direct-fit replacement for easy installation
- Ensures compatibility between mismatched drive components
Maintaining Drivetrain Harmony
Whether you're swapping out a pulley, sprocket, or other drive components, this adapter ring helps maintain the integrity and functionality of your entire drivetrain. It's an ideal solution for custom builds or repairs where precise sizing is paramount to avoid fitment issues and ensure smooth power delivery on your Harley Touring, Softail, or Dyna.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 144106
- UPC: 191361170454
- Weight: 0.0707 lbs
- Country of Origin: China (Taiwan)
Common questions
What is the purpose of this Harddrive adapter ring?
This adapter ring allows drive components with a 2.22" bore to be mounted onto shafts that are 1.99", bridging the size difference within your V-twin's drivetrain system.
Is this adapter ring a direct bolt-on replacement?
Yes, this Harddrive adapter ring is engineered as a direct-fit replacement, meaning it can be installed without needing modifications to your existing components.
How can I confirm this adapter fits my specific Harley-Davidson model?
This adapter is designed for V-twin motorcycles with compatible drive systems. To ensure proper fitment, you should verify your shaft diameter and the bore of your drive components before making your purchase. Use our Shop by Bike tool for precise confirmation.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Harddrive |
| TYPE | Drive |
| SKU | 820-60572 |
| WEIGHT | 0.07 lb |
