SIGTUNA Bike Lock - Heavy Duty Bicycle U Lock Shackle and Mount Holder, for Road Bike, Electric Bike, Folding Bike, Mountain Bike

Having previously owned a similar lock from a more 'premium' brand that cost twice the price (and whilst being invincible from thieves it became inoperable due to rust), I was shocked at how good quality this one felt straight out of the box. From the mount piece to the lock itself, I was very pleasantly surprised. Easy to install and it comes with different grip pieces for different frame diameters. The keys and the lock feel like nice quality.I bought it specifically for my 'cheap' knock-around-town bike and it does the job of being a deterrent perfectly. Obviously it's not been properly tested yet, but if all goes well I might buy another for my more expensive bike.

This bike lock is very sturdy and I have confidence it will do the job when locking the bike up in an open space. I have gone for this one along with a small D-lock to ensure both wheels can be locked to the bike frame, which itself is locked to a bike rack, so all a thief can take is the seat. The lock also comes with a mounting bracket so you don't need to lug it in a bag.To really up your bike security, I'd recommend getting this rear-light alarm which is piercingly loud upon detection of vibration, deterring thieves (I am not endorsed by them, this is just a good idea). It comes with a key-fob for remote locking and unlocking, just like a car! And then maybe consider getting a tracking device like an Airtag and hiding it with a hidden mounting bracket as I have done under the seat. With two locks, the alarm, and an Airtag, I feel like no thief can get away with my bike for very long, and it brings me a piece of mind. https://www.amazon.co.uk/dp/B0BZHW4V3M?psc=1&ref=ppx_yo2ov_dt_b_product_detailsOverall this bike lock is well-built for the price and is a competitor amongst the plethora of bike locks available on Amazon, and I'm glad I went for this one.

Solid D Lock. Easy to attach to the frame of the bike. Good size, small and strong. Easy function and provide great security when parked the bike on the road side. Comes with extra keys in case you lose any.

Great product and excellent quality 👌

A brilliant lock for the money.

Overall, very happy with my purchase, and excellent quality. So far so good!Easy to use, and delivery fast.Thanks!!

Bought one of these lock's for my road bike. I wanted something big and secure looking.On time I recieved the lock, with a strong cable that can be attached to your bike and also help secure the wheels with three keys.My only downside was the bracket that held the lock. While it's screws on very tight it has snapped twice while going down a kerb. Initially I thought it was a manufacturer defect so with the 100% guarantee Sigtuna provides I was sent a replacement with 1pm Special delivery. Unfortunately the bracket on that broke too so Sigtuna refunded me what I paid.I definitely would recommend the lock, I will absolutely keep using it as it does seem super secure and heavy duty but will carry it in a bag. I will certainly look to use more Sigtuna gear after the customer service I recieved.Unlike others I wasn't asked to provide a review for an incentive I just appriciate a good product and feel like everyone should know what a great company Sigtuna is, what a great lock this is but also that the bracket sucks.

good, strong bike lock and gives piece of mind when you are shopping and your bike is locked up