Achieve the ultimate singlespeed setup with the Reverse Components Colab Expert Tensioner – a robust, German-made chainguide engineered for aggressive freeride and downhill riding on full-suspension bikes. With a high-tension spring, adjustable limit stopper and 15 mm of chainline adjustment, it keeps your chain tight, quiet and locked in, even on the gnarliest landings.

The Colab Expert Tensioner is the latest addition to Reverse’s singlespeed drivetrain family, providing a highly secure, easily adjustable system for serious riding. Designed for freeride and DH use, it delivers rock-solid chain tension and eliminates chain slap, giving you a quieter and more reliable singlespeed setup.

Paired with Reverse’s Expert Singlespeed Kits with Sprocket Guides, your chain and rear sprocket interface is locked in place between CNC-machined guide plates. No matter how rough the trail gets or how hard you crank into that big jump, your chain isn’t going anywhere.

• Anti-slip washer: Creates traction and prevents the tensioner from slipping under vibration.


• Adjustable limit stopper: Oversized stopper keeps the tensioner in place and functioning even under bottom-outs, while also setting your position.


• Placement screw: Allows you to set the optimal position and remove/re-attach the tensioner without losing alignment.


• Locking bracket: Oversized and durable, adjusts both chainline and positioning.


• Increased spring tension: Holds the chain tighter, reduces slap and lowers the chance of dropping a chain.


• Chainline adjustment: Single-bolt adjustment provides 15 mm of lateral movement for a perfect chainline.

• CNC machined in Germany


• Weight: 162 g (±5%)


• Material: Aluminium body with plastic pulleys


• Compatibility: 9/10/11/12-speed chains and 13–17T sprockets