Description:

Made of aluminum alloy material, corrosion proof, ultralight but high strength.
Designed to provide a simple, effective and adjustable way to tension chain and single speed change.Converts any speed bike to a single for dropout frame.
Ensures perfect tension for your chain to make you pedal with less efforts.
Rear Derailleur Mount, Dual wheel guide wheels and built-in spring keeps chain stable and never dropping
Compatible with most bicycles. Such as BMX, mountain bikes, folding bikes, city bicycles, etc.

Specification:

Material: Aluminum Alloy
Size: 110mm/4.3inch

Package Includes:

1 Piece Bike Chain Tensioner

Note:

Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!