Oxford LK217 Alpha XA14 Alarm Disc Lock (14mm pin) Yellow Black Products, Multicoloured, One Size

I've seen people attack these but I've never seen one beaten... basically because it's waaay easier to cut the disc, which happens way too often, in seconds. Use it as the noise making inconvenience to back-up your grinder resistant D lock, & as such it's a good, well priced piece of kit. Never rely on any disc lock to keep your bike safe.

Feels solid, looks solid. Gives peace of mind when leaving bike out of sight or in garage.Only niggle was the included "safety clip" that is supposed to clip onto the lock to go up to handle bars was too thick to go through the hole on the lock body.Had to file off a fair amount of metal from the clip to get it to fit to the lock.Still a worthwhile purchase though.

Brought this for my boyfriend for Christmas, after his bike was stolen last year. Not too sensitive the wind sets it off however the alarm will sound when it’s been purposefully moved without disarming the alarm. Brilliant

Alarm stopped working so tried to contact them but no response. Amazon also set up a returns request with them but they didn't reply to that either. Now have a faulty item after only 3 months and no way to get it replaced or repaired.

It "sets" every second time you lock it, with a clear indication that it has set, this means that when you take it off and close it to put it in your bag, it is locked/unset, then you put it on the bike, it's locked/set. Nice usability touchI doubt anyone is going to remove this without an angle grinder.

Does what it says on the box and easy to operate. The yellow reminder chord is useful but a little short for my GS Adventure - still works fine though.

You’d want that in an alarmed disc lock. Can be frustrating, but you don’t want anyone touching your bike.