Description
Boost your single speed or geared bike setup with the Wheels Manufacturing SOLO-SPEED Cog – 21t, a premium component designed for durability, performance, and ease of use. Crafted from high-end 7075 aluminum, this lightweight yet robust cog delivers exceptional strength for demanding rides, making it ideal for bike enthusiasts seeking reliability and speed.
Performance & Engineering:
Engineered with precision, the SOLO-SPEED 21-tooth cog features an innovative narrow-to-wide alternating tooth pattern that significantly enhances chain retention, reducing slips and ensuring smooth power transfer even under tough riding conditions. Optimized exclusively for use with Wheels Mfg. SOLO-XD XD/XDR and SOLO-SPLINE Single Speed Conversion kits, this cog is tailored for seamless compatibility and optimal performance.
Components & Technology:
Constructed from aerospace-grade 7075 aluminum, this cog offers a perfect balance of light weight and extreme durability. Its design supports multiple drivetrain configurations, compatible with 9, 10, and 11-speed chains, including popular 12-speed SRAM Eagle, KMC, SRAM Road, and SRAM T-Type Transmission flattop chains. Please note, it is not compatible with 13-speed Campagnolo or 12-speed Shimano HG+ chains.
Style & Use Case:
Featuring a sleek black finish, the Wheels Mfg. SOLO-SPEED Cog combines style with functionality, making it suitable for both competitive rides and everyday commuting. Its compact, versatile design makes it an excellent upgrade for single speed conversions or to enhance existing drivetrain setups focused on reliability and low maintenance.
Innovative Features:
The narrow-wide tooth profile is a key feature that sets this cog apart, providing superior chain grip in a variety of riding scenarios. Designed specifically for SOLO-XD and SOLO-SPLINE systems, it ensures a secure fit that withstands intense pedaling forces, making it perfect for mountain biking, road cycling, and urban riders looking for a high-performance upgrade.
Upgrade your drivetrain with confidence using the Wheels Manufacturing SOLO-SPEED Cog – 21t, engineered for performance, durability, and compatibility with the latest drivetrain standards. Optimize your bike setup today for a smoother, more reliable ride.
- High-performance 21-tooth SOLO-SPEED cog crafted from lightweight, high-grade 7075 aluminum delivers exceptional durability and corrosion resistance for reliable long-term use.
- Designed exclusively for Wheels Mfg. SOLO-XD and SOLO-SPLINE Single Speed Conversion kits, ensuring a perfect fit and optimal compatibility with your existing hub system.
- Features an innovative narrow to wide alternating tooth pattern that enhances chain retention and reduces slippage, providing smoother acceleration and increased riding confidence.
- Compatible with 9, 10, and 11-speed chains, including SRAM Eagle, SRAM T-Type, KMC, and SRAM Road flat-top chains, offering versatile upgrade options for single speed conversions.
- Sleek black finish with durable construction combined with advanced engineering makes this cassette ideal for commuters, mountain bikers, and urban riders seeking a lightweight, high-performance cog with superior component compatibility.
| Tooth Count | 21 |
| Material | Aluminum |
| Defined Color | Black |






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