Bicycle U Shackle Lock Heavy Duty D Lock High Security with Flexible Steel Cable 1.2M L

Excellent lock. Very heavy, thus not very suitable for women.Even I struggle to use it.Hopefully that makes it good protection (I wish).It's difficult to use. Doesn't go in or out as easily as one would expect.Key is non regular key, has complex 2d dual pattern, which should make it more difficult to brake in.It requires REGULAR oiling, otherwise, within 2 weeks, it's not possible to insert key.Now. Usual stuff about protection level.As all other locks, this can be killed within seconds by proper tools and technique.Lock itself is probably good 'protection'.Cutting thru with disc, standard, within like 10-20 seconds.Braking thru with making leverage and braking the U shape, harder and longer, due large U distance (longer the distance between parts, more difficult to brake it with crowbar/ other lever).That's probably the most sturdy set I've had.

So far so good. Looks good and locks good. It’s quite heavy though but I suppose it’s worth the weight if it saves your bike.Not happy with the housing for carrying it on the frame. The lock fits into it as such that it is not centred. Therefore it rattles and wobbles when in motion. I ended up taking the lock in my bag instead. Four stars because of that feature.

The lock seems very strong, comes with attachment for hanging it on the bike and the service was efficient. good sound chain supplied as well Good value

This bike U-Lock was bought for my electric scooter and it works great. I put it around one of the front stems and and then around any pole you can lock a bike to. It also comes with a helpful and flexible steel loop cable. Both are really strong and durable.Two keys are given so I can always take one and leave one at home as a back up and they fit both ways, so it's quick and easy to lock/unlock.

Looks and feels heavy-duty and secure, the key is easy to use and separate cable is both flexible and sturdy. My only issue is with the bracket, if I'd realised the bracket was offset I wouldn't have bought it. Also the lock moves around quite a bit in bracket which rattles which is annoying! Also because the bracket is offset it doesn't sit snug within your frame or behind your seat, it sticks out a good two inches. Currently trying to source a better bracket for it.

Heavy brute but that is the point. I have a downhill bike and the supplied bracket not ideal for my frame shape and as I tend to have seat low and I have lights and bags hanging from it there is no room for the bracket there. Saying that though Its a good easy to use lock and fits in my backpack fine. Won’t deter the angle grinder crook but the bolt cutters will struggle on this one.

Lock was sturdy and came on time.

Purchased this for my push bike I recently brought. You must use the lock correctly to ensure maximum protection - which is locking the wheel to the frame and using the wire to attach from the lock around the front wheel and to wherever your locking the bike too! I've seen so many reviews of people using the lock incorrectly which resulted in an unfair, bad review. The lock is great, no problems so far but will update if needed.