LITELOK X1 vs X3: which grinder-resistant lock do you need?

If your bike spends nights outside, lives in a high-theft city or is worth several thousand pounds, yes. The X3 is at least 20 times more grinder resistant than the best-selling, unarmoured D-locks, against 5 times for the X1. It also adds an ABLOY® SENTRY cylinder and a 7-year warranty for 400g more weight. If you carry your lock all day for short stops, the X1 is the better choice.

Both. The X1 and X3 have almost the same inside space (about 100 × 196mm), and both go through a motorcycle wheel and brake disc. Neither wraps most rear tyres. To reach a ground anchor as well, the X1 PLUS gives 255mm of length. Check your model in the fitment gallery.

No. It's the same lock with the same armour, ratings, warranty, price and X-Pouch in the box. The same is true of the X3 Moto, X1 MINI Moto and X1 PLUS Moto. We list them separately so riders and cyclists can see how the locks can be used effectively on both motorcycles, bicycles and e-bikes.

Every X lock holds Sold Secure Pedal Cycle Diamond and Powered Cycle Diamond, the highest grades Sold Secure awards, plus ART4. Insurers usually name a minimum Sold Secure grade, and Diamond is the top one. See how our locks are tested, and check the exact wording of your own policy.

Any lock can be cut with enough time. In BikeRadar's lab test the X1 took 4 minutes 38 seconds including disc changes to cut one side, and the X3 took more than 12 minutes and four cutting discs per side. Times vary with the grinder, the discs and the person using it.

The warranty is 7 years on the X3, and 3 years on the X1, X1 MINI and X1 PLUS, including Moto versions. It covers mechanical and operational faults, not cosmetic wear. Register your lock and keys so we can replace a lost key.

The X1, X1 MINI and X1 PLUS are all available as Key Match versions and in keyed-alike bundles, so one key opens every lock. The X3 can't be keyed alike, either to another X3 or to an X1, because each one has its own ABLOY® SENTRY cylinder.

Each X lock has to be cut twice to remove it, because the anti-rotation design stops a single cut from freeing it. So two locks mean four cuts instead of two, which slows a thief down far more than one. Many riders pair them: the X3 through the front wheel, an X1 through the rear or to an anchor. If you only carry one lock, choose it for where the bike spends the night.