The SE Bikes Chain Tensioners are sold in a pair and are a great way to keep your chain tight and / or just give your bike an extra cool look. made from aluminum and available in several colors.
- Genuine SE Bikes chain tensioners
- works with 3/8" axles only
- 2 hole design to work with different length drop outs
- Improved design and function
- Easily adjusts to take up chain slack