Ebikes require a bit of extra security. Packed with features, OnGuard e-bike locks earn the highest safety ratings with double and quad-locking mechanisms, bump-resistant cylinders, and hardened steel shackles and chains.On the outside, our locks are fully-coated to protect your eBike from scratches and to shield internal parts from the elements, while the bright color scheme sends a clear warning to thieves: don’t even try! And then there’s the extras: lock reminder and five laser cut keys.The superior protection of our X4P locking mechanism mated to a standard length 230mm x 14mm TriRadius hardened steel shackle for more locking options. Size: 11.5cm x 23cm Diameter: 14mm Weight: 1.68kg