ABUS Ultra 410 Mini Bicycle U Lock/Cobra 10/120 Cable Combo - 5.5inch x 12mm 12mm round shackle with cobra cable Innovative soft touch housing cover prevents damage to paint Shackle, body, and supporting elements made from temper hardened steel for cut and torsion resistance Pass-through shackle provides anti-twist protection SH 34 bracket mounts easily to frames with a 24-35mm diameter