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Kryptonite Bike Lock with 4-Feet Kryptoflex Cable

4.3 out of 5 stars 1,047 customer reviews
| 32 answered questions

RRP: £34.99
Price: £24.89 FREE UK delivery.
You Save: £10.10 (29%)
In stock.
Dispatched from and sold by WoollyHatShop.
12 new from £21.90
  • Lock package containing U-lock and bonus braided steel flex cable
  • Reinforced sleeve over crossbar and cylinder provides enhanced security protection
  • Shackle clearance measures 102 mm width by 229 mm depth
  • 13 mm Shackle diameter
  • Shackle clearance (mm): 102W x 229D
  • Shackle diameter: 13mm
  • With Bracket & free flex cable

Cycling Special with Geraint Thomas Cycling Special with Geraint Thomas

£24.89 FREE UK delivery. In stock. Dispatched from and sold by WoollyHatShop.

Frequently Bought Together

  • Kryptonite Bike Lock with 4-Feet Kryptoflex Cable
  • +
  • AWE® AWEBrightTM 1 x Super Bright Front LED & 0.5W x 2 Rear LED's Bicycle Light Set 140 Lumens
Total price: £39.88
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Product details

  • Product Dimensions: 22.9 x 10.2 x 3 cm ; 1.6 Kg
  • Boxed-product Weight: 1.7 Kg
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
    Find out more about our Delivery Rates and Returns Policy
  • Item model number: 152074
  • ASIN: B005YPK8G2
  • Date first available at Amazon.co.uk: 3 May 2012
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (1,047 customer reviews)
  • Amazon Bestsellers Rank: 255 in Sports & Outdoors (See Top 100 in Sports & Outdoors)

Product Description

Product Description

Versatile lock package containing U-lock and a braided steel flex. Bicycle security for moderate to high crime areas, with a standard length shackle. 13 mm hardened Kryptonium steel shackle, with patented deadbolt locking mechanism for extensive holding power. High security disc style cylinder, with reinforced sleeve over crossbar and cylinder provides enhanced security protection. Reinforced internal housing increases resistance to twisting and leverage type attacks. Offset key location and overhead cam locking mechanism resists leverage attacks. Patented, easy to use, high security Bent Foot design, with anti-Rattle bumpers keeping the shackle snug against the crossbar and prevent unnecessary noise. 2 keys. The Transit FlexFrame-U mounts quickly and easily and supports the transportation of the most common u-lock sizes, and fits bicycle frame tubing 25mm to 80mm whether round, oval, triangular or square shapes. The mounting system allows for 360 degree rotation providing the ability to micro-adjust the lock angle to better fit and align with a bike frames specific geometry. Vinyl coated and weatherproof, Kryptoflex braided steel cable is suitable for locking up 2.9 cm x 10.2 cm x 13 mm as a secondary deterrent.

Box Contains

Lock; cable; 2xkeys


Customer Reviews

Top Customer Reviews

They almost managed to steal my bike with this lock. I guess they spent some time trying to cut it out when somebody stopped them or they simply just gave up. Attached some photos with it now. I will definitely buy it again !
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I just want to add:
* Mounting was quite simple and appears to be solid; see attached picture.
* Cable is long enough to go through front wheel and back to the U-lock on the rear wheel

So far I am really happy :)
Comment 25 of 25 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Pros

- The company will refund the cost of the bike (up to £800) if you register your lock and your bike with them on their website if your bike is stolen.
- Lock feels substantial and will certainly deter the opportunist thief.
- Solid cable, which ensures more complete protection for the bike, allowing you to tie in the front wheel too.
- Affordable - well-priced for the protection it offers.

Cons

- Lock/cable is fairly heavy to carry around.
- Key lock can be a bit fiddly to operate: I worry a little that in the future this could lead to difficulties with being able to unlock it but it will probably be fine!
6 Comments 117 of 121 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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By JackJack HALL OF FAMETOP 10 REVIEWER on 20 Feb. 2015
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I bought this lock on a recommendation from The Wirecutter group test. My previous bike lock was a combination+cable lock. I only found out how rubbish it was when my bike got stolen. So, for my new bike, I wanted to be sure of getting the best lock.

Frankly, if it wasn't for the recommendation, I would never have looked at a D-Lock like this, since I had assumed they were too heavy to carry around. What I didn't realise is that it comes with a handy adapter that allows you to mount the lock to your bike frame when not in use. This works very well for me - it holds the lock very securely. No wobble, no rattle, and you really don't notice it's there until you need it.

Some reviewers on this page have said they found the adapter impossible to fit. I must admit that I struggled at first, because I am a man and I don't like to read instructions. When I eventually did read the instructions, it all became clear, and I had the adapter fitted in under 5 minutes (it's a plastic mount attached to a nylon tether; you loop the tether through the mount, and tighten an allen nut to secure the tether. The secret is to push down the plastic against the frame as firmly as possible so that the nut engages - then it's easy).

Also, there are 2 keys included (just in case you lose one). I'd recommend storing the spare one somewhere safe!

The only quibble I have is with the 'insurance'. The fine print is so full of exclusions that it's basically worthless. If you do a little Googling, you'll find numerous stories of the company not paying out in the event of theft. But search a little further, and you'll see videos of just how much noise and effort it takes to get through this lock - rest assured that *nobody* is going to cut this lock without attracting a *lot* of attention.
Comment 35 of 36 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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I used this lock to take my mountain bike all over the place, and I have evidence that it does the job.

My bag got stolen, which had my bike locks keys in it. Due to this, my bike was locked up in a dodgy part of town, and I had no way of retrieving my bike other than cutting it lose.

Tools we used: Fireman bolt cutters, handsaw, a van, a saw.

All of those failed. The bolt cutters left about an impressive mark on it as a toddler would if it chewed it. The handsaw did nothing, the van did nothing, the saw did nothing.

In the end we had to use a mains powered angle grinder and a diamond level saw disk, even then it took a good 15 minutes and the diamond level saw disk was in complete tatters, and had to be thrown away.

Not bad for £20. Although the difficulty was with the MAIN LOCK. The extra CABLE came off pretty easily.
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I agree with some of the issues other buyers have reported with this lock:

1. The key is fiddly and sections of the lock internals do get 'out of line' so that full insertion is difficult. But to be fair many lock mechanisms of this kind have the same issue and I expect it will improve as it wears. Adding some light oil to the mechanism helps.

2. The mounting bracket is not particularly useful as it is a bit bulky and it requires the lock to be slid into place. On many bikes the available room within the triangle of the frame to allow mounting and sliding the lock in and out is limited, especially when other items such as pump clamps, front mech clamps and cable runs already obstruct the tubing. I found, therefore, that it was useless so will carry the lock in a bag.

It isn't so heavy as some people have suggested bearing in mind it is actually intended to resist attack with tools. The cable is a useful length and handy to have. It is quite a small lock, though, so you will be limited as to what you can pass it round - bike racks and railings, and thin poles will be fine but forget about lamp-posts and the like. I can't comment on how effective a lock it is as remarks such as 'it looks substantial' are pretty meaningless unless actually tested in anger but it has to be better than a simple cable lock (you might as well tie your bike up with string) and for the price I thought that this package was very good value for money if you don't mind the minor irritations.
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