Abus 420K ULT 150HB 140CM USH+COB キー式Uロック

Switched from a cheaper lock to this one and the difference is night and day—no rattling even on rough roads. The USH bracket is rock solid and the shackle feels seriously heavy-duty.

The bracket fits snugly with zero rattling on my frame, which was my biggest worry with a U-lock this size. The 140cm cable length gives me plenty of flexibility to secure both wheels and the frame to a post, and the new materials feel noticeably more solid than my old lock.

The new USH bracket is a nice upgrade, but the key still feels a bit stiff when turning the lock. It’s solid enough for my bike rack at the train station, though I wish the shackle was a little taller for thicker frame tubes.