Choosing the right single speed conversion kit can simplify bikes with multi-speed drivetrains into a clean, efficient setup. This guide curates five well-regarded options that balance durability, ease of installation, and compatibility for UK cyclists. Each kit is assessed for sprocket material, tooth count, and chain compatibility to help you pick the best match for your bike’s hub and drivetrain.
The table below summarises the featured products to help you compare at a glance.
| Product | Brand | Tooth Count | Notes |
|---|---|---|---|
| Cervus 16T Silver | Cervus | 16 | Steel sprocket; compatible with common single speed chains |
| Cervus 16T Blue | Cervus | 16 | Steel sprocket; compatible with single speed chains |
| Cervus 18T Red | Cervus | 18 | Steel sprocket; compatible with single speed chains |
| Cervus 18T Silver | Cervus | 18 | Steel sprocket; compatible with single speed chains |
| DMR 16T | DMR | 16 | Includes tensioning aids for vertical dropouts |
Cervus 16T Fixie Conversion Kit
The Cervus 16T Silver single speed conversion kit uses CR-MO steel for the sprocket, delivering robust performance with a 16-tooth gearing option. It is designed to fit 1/2″ x 1/8″ and 1/2″ x 3/32″ single speed chains, maximizing drivetrain compatibility for many fixed-gear and single speed builds. This kit is suited for riders seeking a simple, reliable conversion with a straightforward installation path and durable construction for daily UK commuting or weekend rides.
Cervus 16T Fixie Blue Kit
This Cervus 16T Blue variant mirrors the build of the silver model, featuring a CR-MO steel sprocket and the same compatibility with 1/2″ x 1/8″ and 1/2″ x 3/32″ single speed chains. The blue finish provides a visual option for riders who want to tailor the look of their single speed setup while maintaining reliable steel construction and a robust 16-tooth gearing profile for urban riding and short commutes.
Cervus 18T Red Fixie Kit
The 18-tooth Cervus Red kit delivers a higher gearing for steeper urban terrain or faster cruising. Constructed from CR-MO steel, it remains compatible with common single speed chains, ensuring dependable engagement and wear resistance. The red finish also offers a distinct aesthetic if you’re building a standout fixed-gear or single speed bike for city rides and social cycling events.
Cervus 18T Silver Fixie
This 18T Silver Cervus option pairs a robust CR-MO steel sprocket with the same chain compatibility. It suits riders seeking an even balance between acceleration and top-end speed, particularly useful for flatter city routes or riders who prefer a lighter, slightly higher gearing in a durable package.
DMR 16T Conversion Kit
The DMR 16T kit emphasises high-quality branding and practical installation aids, with an optional Simple Tension Seeker and Spacer Kit for vertical dropouts. This package is oriented toward riders wanting a single speed setup that’s straightforward to tension and adjust, particularly suitable for city bicycles that need reliable tensioning after install.
Yundxi 14T–22T Kit
The Yundxi kit is a versatile option compatible with 1/2″ x 1/8″ and 1/2″ x 3/32″ single speed chains. It supports a wide range of tooth counts from 12T to 22T, enabling a broad spectrum of gearing choices. While designed to convert a multi-speed hub to a single-speed wheel, note that it will not convert the hub into a fixed freewheel—useful for riders seeking a simple, light, and corrosion-resistant upgrade.
harayaa 16T Kit With Tools
The harayaa kit features a complete installation package, including spacers, a flywheel cover, a flywheel, a chain tensioner, wrenches, and a torque adjuster. It is built to convert a multi-speed bike into a single speed while providing robust components made from aluminum alloy and stainless steel, designed for wear resistance and durability in everyday use.
Bibike 17T–22T Kit
The Bibike kit supports Shimano or Sram 8 to 11-speed HG cassette bodies and is compatible with chain widths from 1/2″ × 3/32″ to 1/2″ × 11/128″ for 6 to 11-speed chains. It includes a 17T cassette and spacers set designed to help level the drive train, making it a flexible option for road and mountain bikes alike that need a straightforward single-speed conversion.
Buying Guide: Key Considerations For Your Single Speed Conversion
- Gearing and terrain: Choose tooth counts that suit your usual routes. Lower teeth (12–16T) aid acceleration in urban streets; higher teeth (18–22T) improve cruising speed on flatter roads or light descents.
- Chain compatibility: Verify compatibility with your chain width (1/2″ x 1/8″ or 1/2″ x 3/32″). Mismatches can lead to poor engagement and increased wear.
- Hub compatibility: Some kits assume standard 1/2″ axle dimensions and freewheel hubs. Confirm your hub type (freewheel vs. fixed gear) and dropout compatibility before purchasing.
- Durability: Steel sprockets typically offer longer wear life in mixed-use UK conditions. Aluminum variants may reduce weight but can wear faster under heavy use.
- Installation complexity: Some kits include tensioners, spacers, and tools. If your bike has vertical dropouts, ensure the kit supports tensioning options suitable for your frame.
- Aesthetics and finish: Finishes (silver, blue, red) allow you to personalise your bike’s look, especially for fixed-gear builds or showy single speeds.
- Maintenance: A single speed setup often requires less maintenance, but regular chain checks and occasional tension adjustments help maintain optimal performance.
- Compatibility with future upgrades: If you anticipate returning to multi-speed riding, choose a kit that’s easy to revert or reconfigure with minimal parts.