Bicycle
Chain Keeper Tool, Adjustable Dummy Hub Axle For 12mm Thru-axle And Quick Release Frames, Chain Holder For Mtb Road Gravel Bikes, Rear Derailleur & Chain Stabilizer For Travel And Maintenance
USD $27.99
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- 【Secures Chain & Derailleur During Travel or Maintenance】 Designed to hold the rear derailleur and chain in a stable working position when the wheel is removed. Prevents chain sagging, derailleur movement, and frame damage during transportation or drivetrain service.
- 【Adjustable Length for Multiple Hub Widths】 Supports a wide adjustment range to fit 12mm thru-axle frames from 122mm to 157mm. The threaded extension rod allows precise tuning for common hub standards including 130, 135, 142, and 157mm.
- 【Dual Compatibility: 12mm Thru-Axle + Quick Release】 Quickly converts from thru-axle mode to quick release mode by installing the included QR adapter. Ensures broad compatibility with MTB, road, gravel, and travel bikes regardless of axle type.
- 【Anti-Slip H-Shaped Chain Groove】 Features a reinforced H-shaped chain groove that prevents the chain from slipping during gear shifts or crank rotation. Ideal for cleaning, lubrication, shifting adjustments, or transport stability.
- 【Durable Alloy + POM Construction】 Made from high-strength aluminum alloy paired with low-friction POM material. Lightweight yet robust, resistant to compression and impact, and engineered for repeated workshop or travel use.
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