Reverse

Colab Expert Chain Tensioner

The Reverse Colab Expert Chain Tensioner replaces a rear derailleur with a dedicated tensioner to keep a single-speed or simplified drivetrain secure, quiet, and easy to service. Built for aggressive riding, the Expert version adds faster chainline tuning and higher retention features so the tensioner stays put through impacts and wheel removals—without turning adjustments into a teardown.

• Rear-derailleur replacement tensioner - streamlines a single-speed drivetrain while maintaining consistent chain tension
• 15mm chainline adjustability - fine-tunes chain alignment by loosening a single bolt, with no need to remove the tensioner
• Higher spring tension - improves chain retention for hard riding and rough terrain
• Adjustable limit stopper - helps control position and reduce the chance of unwanted movement under load
• Pinch-bolt mounting bracket - maintains adjustment and stability, including when the rear wheel is removed
• Broad drivetrain compatibility - designed for 9/10/11-speed chains and 13–17T cogs
• Aluminum construction, made in Germany - durable, corrosion-resistant build quality for long-term use