BOX

One Single Speed Cr-Mo Cog

The BOX One Single Speed Cr-Mo Cog is built for riders who demand durability, precision, and a clean drivetrain setup that just keeps rolling. Whether it’s powering a single-speed mountain bike, track build, or stripped-down commuter, this cog delivers the kind of long-lasting performance that makes every pedal stroke count.

CNC-machined from heat-treated chrome-molybdenum steel, the BOX One Cog offers a perfect balance of strength and wear resistance. Its 5mm wide inner base ensures a rock-solid interface with Shimano-compatible cassette bodies, preventing bite and maintaining a secure fit ride after ride. Compatible with both 3/32" and 1/8" chains, it’s a versatile choice for any single-speed setup.

• Precision CNC-machined Cr-Mo steel for exceptional durability and smooth engagement
• Heat-treated construction stands up to hard miles and high torque
• 5mm wide base distributes load evenly to protect hub bodies
• Fits Shimano-compatible cassette hubs for easy installation
• Works with 3/32" or 1/8" chains for flexible drivetrain setups

For riders who value reliability and clean simplicity, the BOX One Single Speed Cr-Mo Cog delivers the kind of no-nonsense performance that defines a great single-speed ride.