What Is It?
The Wolf Tooth RoadLink DM (Direct Mount) is a CNC-machined aluminum derailleur link that replaces Shimano's stock direct-mount derailleur link. It is designed to increase cassette clearance on compatible Shimano road and gravel rear derailleurs, allowing the use of larger-range cassettes without replacing the derailleur.
How It Works
The RoadLink DM replaces the original Shimano direct-mount link (B-link) found on compatible derailleurs.
By repositioning the rear derailleur slightly lower and farther back:
- It creates additional clearance for larger cassette sprockets.
- Maintains better chain wrap than excessive B-screw adjustment.
- Preserves near-factory shifting performance on wide-range cassette conversions.
- Enables road and gravel bikes to run lower climbing gears for steep terrain, bikepacking, and touring.
Important: The RoadLink DM increases cassette clearance but does not increase derailleur chain capacity. Total drivetrain capacity limits still apply.
Key Features
- CNC-machined 6061-T6 aluminum construction
- Lightweight design
- Stainless-steel mounting hardware
- Optimized for Shimano 11-speed road and gravel drivetrains
- Improves compatibility with 11-36T, 11-40T, and 11-42T cassettes
- Helps maintain chain wrap and shifting quality
- Suitable for road, gravel, touring, commuting, and bikepacking applications
- Made in the USA
Specifications
| Specification |
Details |
| Product Type |
Rear Derailleur Optimization Link |
| Brand |
Wolf Tooth Components |
| Model |
RoadLink DM |
| Material |
CNC-machined 6061-T6 Aluminum |
| Hardware |
Stainless Steel Bolt |
| Weight |
20 g |
| Color |
Black Anodized |
| Country of Manufacture |
USA |
| Installation |
Replaces Shimano direct-mount derailleur link |
Compatibility
Compatible with:
- Shimano 105 R7000
- Shimano Ultegra R8000
- Shimano Ultegra RX800 / RX805
- Shimano Dura-Ace R9100
- Shimano GRX RX810 (1x setups)
Optimized for:
- 11-36T cassette
- 11-40T cassette
- 11-42T cassette
- Improves performance with 10-42T cassettes
Not compatible with:
- Direct-mount derailleur hangers
- Most 2x GRX setups
- Triple-chainring drivetrains
Who Is This Best Suited For?
Gravel Riders
Perfect for riders wanting wider gearing and easier climbing without changing to a mountain-bike derailleur.
Bikepackers & Tourers
Ideal for loaded bikes that need lower gearing for long climbs and rough terrain.
Road Cyclists in Hilly Areas
Allows the use of larger cassettes while retaining Shimano 105, Ultegra, or Dura-Ace components.
1x Drivetrain Enthusiasts
A popular solution for converting road and gravel bikes to wider-range 1x gearing.
