Serfas Puck Folding Lock

Serfas' unique steel-plated folding lock design rolls up to a compact, hockey puck size and stores securely on your bike with its included frame mounted bracket.

Made of 3mm hardened steel plate with stainless steel rivets and is as strong as a basi U-lock. A much better theft deterrent than a cable or thin chain lock. 

So small and easy to carry on the bike that it works well for kids bikes and small frame adult bikes.

Open's to the size of a standard U-lock when unfolded. Includes frame mounting bracket and 2 keys.

If your bike has quick release wheels, consider a double ended cable for even greater security.