Into Gear are passionate about security. Even basic items like the The Mammoth Junior Bolt-In Ground Anchor can help stop your bike being stolen.  Don't be fooled by the budget price. There are better more expensive ground anchors available (from Into Gear!) , but this still provides a robust base to chain your bike to.
Heavy-Duty ground anchor
Simply bolts into the concrete surface
Manufactured from hardened steel
Suitable for outdoor and indoor use