Dartmoor SINGLESPEED KIT HG – Single Speed Conversion Kit
Do you want to strip unnecessary derailleurs from your bike, simplify the entire drivetrain, and gain absolute reliability with every pedal stroke? The Dartmoor SINGLESPEED KIT HG conversion kit is the ideal solution for anyone building or converting their bike to a clean single-speed setup. Whether your domain is Dirt Jump, Pumptrack, Slopestyle, Street, or even Downhill, this kit lets you easily convert a standard multi-speed hub with a Shimano HG freehub body into a lightweight, durable, and uncompromisingly functional single-speed. Enjoy a ride without chain skipping, complex maintenance, or doubts in your drivetrain.
Key Highlights of Dartmoor SINGLESPEED KIT HG
- Perfect chainline: A set of precise CNC aluminum spacers enables millimeter-precise cog-to-chainring alignment.
- Durable 13T steel cog: The 13-tooth cog made from high-quality steel easily handles heavy power inputs and hard landings.
- Integrated side guides: Two aluminum plates (bashguards) reliably keep the chain in place and prevent chain drops.
- Ultra-low weight: The entire kit weighs just 79 grams, avoiding any unnecessary weight on your rear wheel.
- Wide compatibility: Designed for all standard splined Shimano HG freehub bodies.
Precise Chainline Adjustment for Smooth Operation Without Skipping
The foundation of a flawless single-speed drivetrain is a perfectly straight chainline. If the cog is not aligned with the front chainring, components suffer excessive wear, increasing the risk of dropping the chain at the worst possible moment. The Dartmoor SINGLESPEED KIT HG conversion kit resolves this issue using a set of lightweight aluminum spacers in various widths. Thanks to these, you can position the cog on the freehub body exactly to match your cranks and frame setup. The result is silky-smooth operation, instant pedal engagement, and zero chain slipping.
Combination of Durable Steel and Lightweight Anodized Aluminum
During intense pumptrack sessions or jump riding, the drivetrain takes a beating. That is why the 13-tooth cog (13T) itself is stamped from high-strength steel that withstands tremendous pressure without wearing out over time. However, to keep the overall setup as light as possible, the spacers, side guide plates, and lockring are precisely CNC-machined from lightweight aluminum alloy with a durable black anodized finish. This protects the parts against corrosion while giving your rear hub a sleek, clean aesthetic.
Quick Installation and Maximum Confidence on the Trail
You don't need to be a professional bike mechanic to perform the conversion at home. The process is very straightforward: remove your existing cassette, arrange the aluminum spacers along with the 13T cog into the desired alignment, place the aluminum side guides on both sides of the cog, and tighten the assembly securely with the lockring using a standard cassette tool to 40 Nm torque. The included side guide plates reliably keep the chain in place even during hard landings or frame flex on jumps.
Technical Specifications
| Parameter / Component |
Value / Specification |
| Application & Type |
Single Speed Conversion Kit |
| Freehub Compatibility |
Shimano HG (7–10s, MTB 11s) |
| Cog Size |
13 teeth (13T) |
| Cog Material |
Durable steel |
| Spacers & Lockring Material |
Anodized aluminum (CNC machined) |
| Kit Weight |
79 g |
| Package Contents |
13T steel cog, aluminum spacers, 2x aluminum side guides/plates, lockring |
| Color Finish |
Black anodized |
Frequently Asked Questions (FAQ)
How do I know if the kit is compatible with my rear hub?
This kit is designed for standard splined Shimano HG freehub bodies (which are used by the vast majority of standard multi-speed hubs). It is not compatible with SRAM XD/XDR or Shimano Micro Spline systems. If your hub currently uses a standard HG cassette, this kit will fit perfectly.
How do I correctly set up the chainline during installation?
The key to success is combining different aluminum spacer widths. Before sliding on the cog, place a portion of the spacers onto the freehub body so that the cog aligns straight with the front chainring. Install the remaining spacers after the cog and secure the entire setup with the lockring. Looking from behind the bike, you can easily verify that the chain runs straight without angling.
