Protection
Oxford Screamer Alarm Disc Lock
$45
A hardened steel body, a 14mm hardened steel pin through your brake disc, and a 120dB alarm that activates from vibration or tampering. That's enough to wake a parking lot and embarrass any thief who thought your bike was an easy score. Comes with a reminder cable that you loop over your handlebar so you don't ride off with it still locked. Compact enough to disappear in a jacket pocket.