Folding bicycle chain tensioner Aluminum alloy CNC chain adjuster suitable for folding bicycle zipper<br> Features:<br> Made of aluminum, perfect for fixed gear (Fixie) track bikes, any single speed bike.<br> This adjuster is suitable for spindles (axles) of size 10mm, with end pieces about 20mm long, and can be mounted on dropouts openings.<br> Very easy to install and very easy to tension the chain when removing and reinstalling the wheel.<br> Specifications:<br> Material: Aluminum alloy<br> Color: Black / Red / Silver<br> Size: 5.3x2.7 cm / 2.09x1.06 inch<br> Package includes:<br> 1 *Bicycle chain adjuster<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store