The Oxford TerraForce Ground Anchor is the perfect solution for your motorcycle's security.Sold secure approved to Motorcycle DIAMOND (Resists angle grinder attack)Case hardened concrete-in steel floor anchorSimple and easy to fitAll necessary fittings included21mm diameter case hardened steel head59mm internal diameter allows all chains to be fittedFits all cable locks and Oxford chains up to 16mm link diameterThe Oxford TerraForce Ground Anchor is a case hardened concrete-in steel floor anchor which has a 21mm diameter case hardened steel head which resists all forms of attack. There is a 59mm internal diameter and it can fit all cable locks and Oxford chains up to 16mm link diameter.This ground anchor is simple and easy to fit as most DIY stores supply ready-mixed concrete that you just add water to, and all the necessary fittings are included.The TerraForce Ground Anchor has been Sold secure approved to Motorcycle DIAMOND (Resists angle grinder attack).