Add frame-to-rack security for your fat-tire Rad bike. Pairs with the Rad Fat Tire Wheel Lock (sold separately). Compatibility For use only with the Rad Fat Tire Wheel Lock Two lengths: Short or Long Works with common bike racks and fixed anchors Details Hardened-steel link chain with protective fabric sleeve Lock-end adapter interfaces with the Rad Wheel Lock Long size provides extra reach to secure front wheel Sizing & Capacity Short: compact reach for close fixtures Long: added reach or front-wheel + frame security Choose length based on typical parking distance Product Weight Short: ~2–3 lb (approx.) Long: ~3–5 lb (approx.) Installation & Use Insert chain plug into the Rad Wheel Lock, loop around a fixed object, lock closed Keep chain low and tight to reduce leverage points Use with a secondary lock for maximum security where needed