Lightweight Cr-Mo threaded rod with an hex key fitting and coloured alloy end covers.The absence of any lever means these skewers offer improved security and reduced weight over a traditional QR skewer.Features a steel 'no-turn tab' to prevent the end cone from rotating whilst doing up or removing. There's also a 15 x 3mm cone spanner recess cut into nut, just in case the âno-turnâ tab cannot operate.Features:Cr-Mo rodsSteel 'no-turnâ tabbed washer insertSerrated alloy frame grip surfaces15mm cone spanner holding back-up on nutBlack, Gold anodised or White Powdercoated.Maximum width skewers can be used with:Front 122mm - (100mm hub width, plus 11mm dropout either side)Rear 155mm - (135mm hub width, plus 10mm dropout either side)