鋼纜鎖

Setting my own combination took about ten seconds, which beats carrying a key I'd definitely lose. The cable wraps tight around a bike rack and the push-button retract keeps it neat in my bag between rides.

The push-button retract makes rolling the cable back up way less fussy than coiling a chain, and it wraps my scooter to the bike rack in seconds. I do wish the slack button didn't still click when it's locked, since it threw me off the first time, but everything holds tight.

Setting my own combination took about ten seconds, so no more fumbling with a key when I'm in a hurry. The cable wraps around the bike rack and my scooter frame with room to spare.