Professional view from Stu

This D lock is an affordable base layer of protection if you don't live in a crime hotspot. It's small size makes it easy to transport.

It's got a Sold Secure rating of Silver, which means it's been tested by the Master Locksmiths Association. 

It comes with a mounting bracket so you can fix it onto your bike when you're riding, and with two keys just in case you lose one. 

Although this lock is a silver secure lock, we recommend combining with a second lock to make sure that no one can make off with random bits of your bike, especially when leaving your bike for longer periods of time. 

Product dimensions: 8.3cm x 14cm