Folding Bike Chain Stabilizer 5Speed 6Speed 7Speed Cycling Chain Tensioner Folding Bicycle Rear Derailleur for Brompton

High-concerned chemical : None Derailleur Groupset Type : Mechanical Derailleur system Gears : 7 Speed Material : aluminum Type : Rear Derailleur Brand Name : APWIKOGER Origin : Mainland China Components : Derailleurs Folding Bike Chain Tensioner : Bike Rear Derailleur Chain Stabilizer Folding Bike Chain Stabilizer : Cycling Chain Tensioner