A frame lock (AKA ring lock) mounts permanently to the frame for peace of mind against not remembering to bring your U-lock.
Prevents someone from riding your bike away, but the bike can still be carried away, so it is best used in conjunction with a U-lock, if you are leaving the bike for a long time.
Many European bikes come with these or at least with braze-ons to mount them. Most U.S. marketed bike don't have the braze-ons, but we stock the AXA Flex Mount that allows you to install the Solid on almost any bike.
• Fits over tires up to 50mm wide
• Hardened steel bracket and lock housing
• Two flat keys included
• AXA security level: 10/15
AXA Flex Mount for Frame Locks
Allows you to mount a frame lock to a bike without the bosses for a frame lock. Bolts with worm screws included.