Chain Keeper For Bike Travel And Maintenance, Adjustable Dummy Hub Axle Stabilizer Fits 12mm Thru Axles And Quick Release Frames, Keeps Chain And Rear Derailleur From Sagging Or Moving, Ideal For MTB Road Gravel Bikes
The Chain Keeper is a compact stabilizer designed to hold the rear derailleur and chain in a stable position during wheel removal, travel, or drivetrain service. It's a handy tool for MTB, road, and gravel bikes to prevent chain sagging or derailleur movement while you work or ship your bike.
✅ 12mm thru-axle compatibility with 122-157mm range (4.80-6.18 in)
✅ Quick-release adapter included for QR frames
✅ Anti-slip, H-shaped chain groove keeps chain from slipping during shifts
✅ Durable aluminum alloy with POM construction for lightweight strength
✅ Ideal for travel, maintenance, cleaning, lubrication, and adjustments
💡 What is a bike chain keeper used for during travel and maintenance? A handy tool that secures the derailleur and chain to avoid sagging and damage while you service or ship the bike. - secures derailleur and chain during wheel removal - keeps chain aligned and tensioned during cleaning or lubrication - prevents frame contact and gear misalignment during transport