Premium Weight Bike Chain Tensioner - Adjustable Pulley for Mountain & Folding Bikes - High Strength Aluminum Alloy - Single Speed Chain Conversion - -Skid Jockey Wheel

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 change.Converts any 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/4.3inchPackage Includes:1 Piece Bike Chain Tensioner: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!

• * 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.
• * Designed to provide a simple, effective and adjustable way to tension chain and single change.Converts any bike to a single for dropout frame.
• * Ensures perfect tension for your chain to make you pedal with less efforts.
• * Made of aluminum alloy material, corrosion proof, ultralight but high strength.