Bike Chain Aluminum Alloy Single Speed Adjuster Converter for MTB Road Bike Single Speed Rear Derailleur Chain Tensioner _x000D_ Description: _x000D_ _x000D_ OOTDTY _x000D_ new and high quality _x000D_ _x000D_ Features: _x000D_ _x000D_ Exquisite workmanship, full machining, anode color, bearing shaft, can be used with a variety of guide the guide wheel is generally 11 teeth, can also use 13 teeth. _x000D_ Floating pulley and spring adjust for perfect chain tension. _x000D_ Light weight and easy to install, made of high grade aluminum alloy material, durable in use. _x000D_ _x000D_ Specification: _x000D_ Type: Chain Tensioner _x000D_ Material: 6061 Aluminum alloy _x000D_ Applications: Single speed folding _x000D_ _x000D_ Features: _x000D_ Stable chain, exquisite workmanship, light weight, easy to install, high quality materials, durable, accessories _x000D_ Dimension: app.5.5x12cm/2.17x4.72in _x000D_ Color: Red, Black (optional) _x000D_ Quantity: 1 Pc _x000D_ _x000D_ _x000D_ Note: _x000D_ _x000D_ 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. _x000D_ 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! _x000D_ _x000D_ _x000D_ Package Includes: _x000D_ _x000D_ 1 Pc x Chain Tensioner _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_