60mm x 6 mm steel QR (quick release)

The bike Friday Pocket bikes with folding seat masts all use this length quick release at the base of it to lock the mast and the rear end when it is fully assembled. This is the heavier duty steel one. It clamps tighter than the lighter Alloy one if you are having trouble with picking your bike up and having the mast swing. - Not for use on the stem riser - 55mm should be used for Stem QR -