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  • Description
  • Reviews (66)
  • Bike Locks Guide
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  • Product description

    The Kryptonite Series 2 U-lock and Kryptoflex cable are essential for any cyclist looking to keep their bike secure whether at work, in town or at the shops. The 13mm hardened Kryptonium steel shackle is ideal for moderate crime areas and comes with £800 anti-theft protection.

    Brand quality are packed into the Series 2 U-lock with a super strong patented deadbolt locking mechanism which has extensive holding power. Reinforced internal housing is designed to increase resistance against different types of attack such as leverage and twisting. Anti-rattle bumpers are a great feature that reduce noise and scratching on your frame and provides a snug fit against your crossbar.

    The Series 2 is weatherproof for long-lasting performance. Protect your bike with the most trusted name on the market.

    Weight - 1.6kg (includes keys & fittings)

    Features:
    • 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
    • Patented deadbolt locking mechanism for extensive holding power
    • High security disc style cylinder
    • 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
    • Anti-Rattle bumpers keeps 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
    • The Flex Frame-U 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 for locking up 2.9 cm x 10.2 cm x 13 mm as a secondary deterrent

  • Kryptonite Series 2 U Lock with 4 Foot Kryptoflex Cable Reviews

    Write your own review
    Overall Rating:
    4.6
    out of 5
    4.63
    Build Quality
    4.68
    Performance
    4
    Value For Money
    4.72

    Customer Reviews (66)

    4
    Good Little Lock

    Good lock and good price. I haven't bothered to use the mounting bracket as I just use it to lock my bike up at work and just put it in my rucksack. Only given half a star for performance as no one has attempted to break it and so I don't know how it performs.

    Good lock and good price. I haven't bothered to use the mounting bracket as I just use it to lock my bike up at work and just put it in my rucksack. Only given half a star for performance as no one has attempted to break it and so I don't know how it performs.

    Close review
    3.5 out of 5
    Build Quality: 5/5
    Performance: 0.5/5
    Value For Money: 5/5
    4
    Decent deal

    After 9 months weekly use I felt it fair to give my view on this D-lock; great value considering you get the leash included, although this can be a little tight depending on the situation. The actual lock feels pretty solid and after all this time in an open bike shed, only slight corrosion spots are appearing on the unpainted metal. The only slight niggle I have found in operation is the tumblers are easily offset from one another, making inserting the key sometimes tricky.

    After 9 months weekly use I felt it fair to give my view on this D-lock; great value considering you get the leash included, although this can be a little tight depending on the situation. The actual lock feels pretty solid and after all this time in an open bike shed, only slight corrosion spots are appearing on the unpainted metal. The only slight niggle I have found in operation is the tumblers are easily offset from one another, making inserting the key sometimes tricky.

    Close review
    3.8 out of 5
    Build Quality: 4/5
    Performance: 3/5
    Value For Money: 4.5/5
    4
    Nice

    It does the job and the value for money is great. However I wont leave my bike unnatended overnight with this lock. Note that you need to pay an extra $10 if you want to add the kryptonite anti-theft offer,

    It does the job and the value for money is great. However I wont leave my bike unnatended overnight with this lock. Note that you need to pay an extra $10 if you want to add the kryptonite anti-theft offer,

    Close review
    4.3 out of 5
    Build Quality: 4/5
    Performance: 4/5
    Value For Money: 5/5
    5
    seems solid

    Not used this yet to be able to give a proper review but from the price and the great things that many, many people are saying about this lock I am expecting great things!

    Not used this yet to be able to give a proper review but from the price and the great things that many, many people are saying about this lock I am expecting great things!

    Close review
    5 out of 5
    Build Quality: 5/5
    Performance: 5/5
    Value For Money: 5/5
    5
    Amazing lock

    When used properly this lock is great, even the look of it would deter any would be thieves. I've not used the fixing bracket personally but it looks sturdy and well built. My advice would be to buy a second lock from a different manufacturer to use in conjunction with the Kryptonite.

    When used properly this lock is great, even the look of it would deter any would be thieves. I've not used the fixing bracket personally but it looks sturdy and well built. My advice would be to buy a second lock from a different manufacturer to use in conjunction with the Kryptonite.

    Close review
    5 out of 5
    Build Quality: 5/5
    Performance: 5/5
    Value For Money: 5/5
    5
    Love it

    Amazing price for half decent a lock, however it is a little big to mount onto my bike without getting in the way, but this will probably differ on other makes and models. Bonus point it was I received the day after ordering and included two bags of sweeties :) 

    Amazing price for half decent a lock, however it is a little big to mount onto my bike without getting in the way, but this will probably differ on other makes and models. Bonus point it was I received the day after ordering and included two bags of sweeties :) 

    Close review
    5 out of 5
    Build Quality: 5/5
    Performance: 5/5
    Value For Money: 5/5
    5
    Grest

    Great lock, quite heavy but hopefully that will keep my bike safe. Great customer service too

    Great lock, quite heavy but hopefully that will keep my bike safe. Great customer service too

    Close review
    4.8 out of 5
    Build Quality: 4.5/5
    Performance: 5/5
    Value For Money: 5/5
    5
    Great little lock

    Brought this in the sale so got it for a bargain. Does what it is meant to do lock my bikes up. What more is there to say?

    Brought this in the sale so got it for a bargain. Does what it is meant to do lock my bikes up. What more is there to say?

    Close review
    5 out of 5
    Build Quality: 5/5
    Performance: 5/5
    Value For Money: 5/5
    4
    Secure Lock

    Appears to be a very solid secure lock. It was heavier than expected but I guess it needs to be. Came with fixing bracket and cable.

    Appears to be a very solid secure lock. It was heavier than expected but I guess it needs to be. Came with fixing bracket and cable.

    Close review
    4.3 out of 5
    Build Quality: 4.5/5
    Performance: 4.5/5
    Value For Money: 4/5
    4
    Nice and Secure

    I park my bike in a secure, well lit area but prefer to be safe than sorry. This lock seems to do the trick. Great that I can lock the wheels and frame and it's nice and visible. Yes it is a tad heavy - I have a 17" ladies mountain bike and couldn't find anything to secure the lock carrier on the frame without compromising my movement when riding, but I've got a basket on the front so I just carry the lock in there. Overall, seems to be good value for money

    I park my bike in a secure, well lit area but prefer to be safe than sorry. This lock seems to do the trick. Great that I can lock the wheels and frame and it's nice and visible. Yes it is a tad heavy - I have a 17" ladies mountain bike and couldn't find anything to secure the lock carrier on the frame without compromising my movement when riding, but I've got a basket on the front so I just carry the lock in there. Overall, seems to be good value for money

    Close review
    4.3 out of 5
    Build Quality: 4.5/5
    Performance: 4/5
    Value For Money: 4.5/5
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