Kryptonite Evolution Lock U- Bicycle

Got new bike recently and after long research I decided to go for Evolution mini 5. Lock is very sturdy and also practical and small. Didn’t wanted to buy bigger ones as I like to have on the bike smallest amount of add-ons as possible to keep it light. Yes, you cannot lock the bike on every post possible but you always have around some good fence or something so there is no problem on being “too small”. It is very easy to lock and unlock. Also, lock holder is great, no movements, no noises or anything. You pay one time 50€ for a good lock and you are good to go for a long long time, also most of the bikes stolen are ones with cheap chains. Good luck in cutting this xD

I think it's worth paying the price premium for Kryptonite since it the safety deterrent on bike thieves

I only ever buy these high quality locks after too many problems with cheap ones and it is well worth it for reliability and strength.

This is a good solid lock in a portable size though a little heavy. I’m very happy with it apart from the poorly finished aluminium mounting bracket - the sharp edges put a scratch on my new bike. I have since removed the bracket (easy to do) and just carry the lock in a bag instead of using the supplied bike mount.

Really solid and secure!Only minor cons:- a bit smaller than I though, hard to lock bike to poles and similar- does make some noise while cycling, for example when hitting a small potholes on the road- sometimes you’d struggling opening the lock, the key are not very well designed.

Great lock and key registration service .

Lightweight and small, so that's nice. I don't buy the strength rating being the same as the thicker U-locks (if it was, they would all make them thinner and lighter). It's still only a deterrent since you can cut through this in 15 seconds with an angle grinder just like most U-locks out there, so there's no need to pretend.Major fail not to include a bike frame bracket to secure it onto the bike when riding. I mean you're asking for more than 50 GBP for a small bike lock, you'd better include the minimal needful.

I bought this as an additional lock for my bike to lock my front wheel to the frame. It's quite small so will fit snugly around your wheels and a stationery object. I would say that for some bike stands it might be a little small to get around the post and the wheel but it is still a good buy. It's also more portable to take in your bag than other locks. Sadly I could not fix it to my frame due to the geometry of my bike.