The defender m1 is compatible with all front forks including tapered steerers the unique quick release attachment system integrates seamlesslyxc1139s rigid lightweight frame is a visually modern rear fender multiple pivots ensure perfect fit coverage high impact plastic is co moulded to a softer trailing edge for greater durability rear fender fits all diameter posts m1 2752934 front 208g xc11 27534 rear 215g xc11 2934 rear 220g