Maybe you need the greater locking options that a long chain offers.

It works really well for my circumstances. Twin Bike Shelter - Features Secure bike locker - storage for 2 bikes** Perfect for the side of a house or flat - compact, secure bike storage. All high security bike locks are. But if you have a $200 bike and you only spend $20 on the lock, you’re probably asking for trouble.In fact, the Granit X Plus 540 is the lightest, high security, standard sized u-lock available at the moment.And since the one tool that every every bike thief carries is a pair of cable cutters, cable locks offer very little practical security.There are four, well established types of bike lock to choose from:Bike thieves love bolt cutters!However these chains are so heavy and cumbersome that they generally work best as a second, stationary lock, which you leave wherever your bike is regularly secured for long periods of time.And each of these locks offers a compromise between three fundamental qualities:And they also have close links with the police and insurers which means they get up to date information on the techniques used by thieves and can test the locks accordingly.Plus, it comes with a choice of two very robust and reliable frame mounts. Which is pretty unique! But if we look at the advantages and disadvantages of each type of lock it should quickly become clear which is the best one for you.This revision has earned it an upgrade from Sold Secure Silver to Gold (although it still gets 2/5 from ART). But answering the questions in the table below should give you a pretty good idea…These problems are less likely to occur if you buy a better quality lock.With 15 mm links it’s certainly not portable. And some thieves use these tools too.But to work out which one of the others is best for your needs, let’s look at each one in more detail…There's a lot to like about the Mini-7. And a decent enough frame mount (if you install it correctly).I don’t think they’re as easy to use as a u-lock or chain. And their length and flexibility give you more options than you’d get with a standard sized u-lock when you’re looking for somewhere to lock your bike.As with u-locks, you should think carefully about what size and thickness you need and how you will carry it about if you need a portable chain.They're also the easiest bike locks to carry, in a case that screws into your water bottle holster. This makes them much easier to carry than normal chain locks, which you generally have to wrap around your seat post.Innovative locks: pros and consCarrying the Hiplok as a belt distributes the weight and bulk around your body so that it's much more manageable.The great thing about OnGuard locks is that you can usually pick them up them at really cheap prices! But if none of them seem quite right for you, don’t worry, below these picks I’ll show you the three simple steps that will guarantee you find the perfect bike lock for your needs.Because of their rigidity they can be more challenging to carry than chain locks. Or that’s difficult to carry, complicated to secure or that severely limits the places you’re able to lock your bike.Kryptonite New-U Evolution Mini-7In terms of security, the hardened steel 10 mm chain links and 12 mm shackle make it a pretty tough customer and this is reflected in the Sold Secure Gold rating.Don't get me wrong: it's still quite heavy (around the same weight as 3.5 cans of coke). If it stops working before you secure your bike, your bike may be stolen.They range in price from around $30 / £18 for a decent budget lock, up to $100 / £60 for the most reliable and secure models. What about the other wheel? So it can accommodate the vast majority of body sizes.Kryptonite, OnGuard and Abus all use different security ratings. Don't get me wrong: it's still a very secure lock. The CycleSafe ProPark Double-Tier Door-View bike locker offers a window in the door, allowing for easy viewing to identify locker contents and availability.The modular ProPark bike locker offers a range of bike parking capacity.

It's true: there are some cheap, high security locks. If you don’t want to lose them, these should be secured too.Carrying them round your seat post is fine for shorter, thinner (and less secure) chains. Locks that stop working properly can cause all sorts of problems...So, if you’re looking for a very high security bike lock, that doesn't weigh a ton but still gives you plenty of places to lock your bike up.

4.5 out of 5 stars 217. The Kryptonite KryptoLok Series 2 955 Mini is a short, mid-security chain designed for mobile security.The ultimate job of any lock is to stop your bike from being stolen. Maybe you’ve got a cheap bike now but if you upgrade in a couple of years, you wont need to shell out again for a better lock as well!This is a very long guide! This is a lock that stays wherever you lock your bike all day or overnight.When locked, it has slightly less internal space than a standard u-lock.

Which makes it as strong as much thicker shackles on much heavier bike locks.