A solid steel plate U-lock that folds down to the size of a phone, the RockyMounts Hendrix folding U-lock is a staff favorite.

Made of hardened 3mm thick rubber coated steel plates and unfolds like origami to 27 inches long.

Easy to carry and store on the bike with the included water bottle cage mounting bracket.

Opens to a larger than U-lock size and is tougher than many of the U-locks on the market.

Add a double ended cable to secure your wheels to the lock for even greater security.