BUYER'S GUIDE

6 of the best bike locks — stop your bike getting stolen with our selection

Your buyers guide to the top-rated locks from £20

The '80s and '90s saw an arms race between lock makers and
bike thieves that eventually settled down when lock makers figured out how
to make locks that would resist everything but hefty portable power tools.
Here's our selection of the locks that have the right stuff.

A sufficiently determined thief can breach any lock. However, for the
best locks 'sufficiently determined' means 'carrying a portable angle
grinder'. That's not a cheap tool in itself, and while it's quick, it's
also very conspicuous.

One technique of your professional thief is therefore to damage the lock
so you can't open it, and then come back late at night with the big guns.
If you find your lock mechanism made unusable — filled with glue, for
example — break the lock yourself. Hiring an angle grinder will cost you
about £20 for the day.

That's about the only way you'll quickly get through most of our lock
selection here. The more you pay, on the whole, the longer it takes to
breach a lock with unpowered brute force attacks, to the point where a
thief won't bother with the best locks, but move on to easier pickings.
It's a sad truth that the basis of on-street bike security is to make your
bike too much trouble so a thief will nick someone else's.

To
help you protect your bike, take a look at our Bike Locking Bible
.

Master
Lock Street Fortum with cable — £30.99

For 30 quid with a cable to help secure your front wheel the Master Lock
Street Fortum is very good value in a lock that meets the Sold Secure
Bicycle Gold standard. When we tested it, it resisted bolt-croppers and
our persuader test, and the lock mechanism is well-protected from assault.

It can be broken, of course, but if you want a decent level of security
at a sensible price for a round-town bike, it's a good choice.

Read
our review of the Master Lock Street Fortum

OnGuard
5000 Brute LS — £24.63

Its RRP is over £40, but the price above is more typical, which makes
this tough cookie great value.

The Brute mates a 16mm hardened shackle with a bar made from a single
piece of steel, and the locking mechanism is protected against drilling
and picking.

In testing it resisted our standard armoury of 3ft bolt croppers,
persuader, hammer, cold chisel, screwdriver and hacksaw. The 16mm shackle
was too big for the jaws of our croppers so we went after it with the
persuader and hammer but after five minutes the damage was pretty
cosmetic, and the lock – with a slightly bent shackle – still worked fine.

Read our
review of the OnGuard Brute

Find an OnGuard
dealer

Kryptonite New York — £64.08

The Kryptonite New York is plenty tough enough to repel most criminals
and is a good choice for everyday use where bike security is a necessity.

It's not cheap, and it's heavy, but the New York pointed and laughed at
our standard armoury. Nothing short of some quality power tools would make
a dent in this lock.

Read
our review of the Kryptonite New York

Find a Kryptonite dealer

Abus Granit
X-Plus — £62.50

The Abus Granit X-Plus has long been among the best D locks on the
market. It has Sold Secure Gold ratings for both bike and motorbikes (the
latter is a higher standard) and it's not hard to see why.

We couldn't break this one with our standard thieves' armoury. The
shackle is super stiff and no amount of cropping, twisting or thwacking
would do any serious damage. the plastic sleeve got a bit mangled, but
that was about it. Some meaty blows to the base broke off the plastic
covering, but only to reveal a serious-looking steel plate construction
that does a very good job of protecting the lock mechanism and was
dismissive of our efforts. After all the violence was over the lock was
still in perfect working order; even the plastic cover just snapped back
on.

Read
our review of the Abus Granit X-Plus

Find an Abus dealer

Squire
SS50CS Stronghold Padlock — £54.95

In combination with a hefty chain, a good padlock will provide high-level
security for home bike storage, though the substantial total weight makes
it a bit impractical as carry-along theft prevention.

The Squire SS50CS is a well-designed, heavily armoured lock that's an
excellent partner to some heavy-duty chain.

At 650g it certainly feels the part. It's engineered from a hardened
steel billet with a 10mm shackle that's almost fully enclosed. The barrel
is protected by another steel plate to protect against drilling, with the
key turning just an eighth of a rotation to allow the protective sheet to
cover more of the mechanism.

Read
our review of the Squire SS50CS Stronghold Padlock

Find a
Squire dealer

Pragmasis
Protector 13mm security chain 2.0m — £78.75

Two metres of Protector 13mm chain weighs 6.95kg so you're not going to
be carrying it around, but it's a great last line of defence for your home
bike storage.

We couldn't touch it with bolt croppers, and a chain is inherently
resistant to prying and hammering, especially a hardened steel chain like
this.

Pragmasis offers a package of a 2m
Protector with the Squire SS50CS Stronghold padlock above for £123.70
.

Read
our review of the Pragmasis Protector 13mm security chain 2.0m

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Road.cc buyer's guides are maintained and updated by John Stevenson. Email John with comments, corrections or queries.

Acknowledged by the Telegraph as a leading cycling journalist, John Stevenson has been writing about bikes and cycling for over 30 years since discovering that people were mug enough to pay him for it rather than expecting him to do an honest day's work.

He was heavily involved in the mountain bike boom of the late 1980s as a racer, team manager and race promoter, and that led to writing for Mountain Biking UK magazine shortly after its inception. He got the gig by phoning up the editor and telling him the magazine was rubbish and he could do better. Rather than telling him to get lost, MBUK editor Tym Manley called John’s bluff and the rest is history.

Since then he has worked on MTB Pro magazine and was editor of Maximum Mountain Bike and Australian Mountain Bike magazines, before switching to the web in 2000 to work for CyclingNews.com. Along with road.cc editor Tony Farelly, John was on the launch team for BikeRadar.com and subsequently became editor in chief of Future Publishing’s group of cycling magazines and websites, including Cycling Plus, MBUK, What Mountain Bike and Procycling.

John has also written for Cyclist magazine, edited the BikeMagic website and was founding editor of TotalWomensCycling.com before handing over to someone far more representative of the site's main audience.

He joined road.cc in 2013 and these days he lives in Cambridge where the lack of hills is more than made up for by the headwinds.

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