Last week, I spoke with bike-store owners and cycling experts about the best commuter bikes. They all agreed that whether your style leans more upright Dutch-style bike or sporty hybrid road bike, protecting your bicycle with a high-quality lock is essential. Bike thieves equip themselves with everything from bolt cutters and hammers to hacksaws and crowbars to break through weak locks, so it’s important not to skimp here. While no lock is totally theftproof, the best ones are the most difficult to cut through, and their appearance alone may be enough to deter potential thieves.
Keep in mind, too, that locking your bike’s frame with a standard U-lock doesn’t protect parts like wheels and saddles that can often be removed without any tools. Susi Wunsch, founder of the cycling lifestyle site Velojoy, sent along this diagram illustrating how multiple types of locks — including cables, chains, and skewers — can be used together to safeguard all parts of your bike. Below, Wunsch and other experts recommend the best locks for safeguarding your bike and all of its parts.
Kryptonite New York Standard Heavy Duty Bicycle U-Lock
Nearly everyone I spoke with considered the Kryptonite New York lock the most secure option out there. The company introduced the lock in 1994 to rise to the challenge of increased reports of bike thefts in the city. Charles McCorkell, owner of Bicycle Habitat, said Kryptonite’s New York lock is extra secure because “the locking mechanism turns and locks on both sides — so it can’t just be cut once — and takes twice the effort to break into. The larger diameter of the U also takes longer to cut, and the keys are almost unpickable.” The 16-millimeter-thick steel is extremely difficult to cut with standard bolt cutters. The lock comes with three keys, including one with an LED light for easily unlocking your bike in the dark, and a bracket for mounting the lock on your frame for easy transport. For best results, loop the lock around both the bike’s frame and rear wheel.
Lumintrail 12mm Heavy Duty Security Cable
Wunsch also uses the Kryptonite New York lock — she’s had the same one for eight years now — and pairs hers with an affordable cable to protect her bike’s front wheel. “A U-lock will affix your frame to the bike rack, but say you have a quick-release front wheel — you don’t need a tool to take it off, just flip a little lever,” she said. “If you use a simple cable lock and you run that through the U-lock and the front wheel, then you’ve also safeguarded that. It’s going to give a possible thief pause.”
Kryptonite New York Fahgettaboudit Bicycle Chain and New York Disc Bike Lock
If you’re locking your bike for a long period of time in an especially high-theft area, Rich Conroy, director of education at Bike New York, recommends Kryptonite’s Fahgettaboudit steel chain and dead bolt. “The advantage of a cable or chain is that they can go around larger objects that a U-lock won’t fit,” he said, and “cables can be easy to cut though.” While this set is extremely effective at protecting your frame and wheels, all that impregnable steel does come with some heft, though, and with this set, you’ll be riding around with an extra ten pounds. Some choose to loop the chain around their waist for easier carrying — just don’t lose your key à la Ilana Wexler.
Kryptonite Evolution Series-4 Integrated Chain Bicycle Lock
For quick lockups on relatively safe streets, you may not need quite as much protection as the Fahgettaboudit offers. Kryptonite’s Evolution lock is one step down in terms of thickness, but should still offer enough protection for most riders. It’s also cheaper and lighter, weighing a little over six pounds. Andrew Crooks, owner of NYC Velo, recommended it as an alternative to the New York lock if that one’s out of your budget. As always, connecting the chain to a U-lock makes your lockup safer.
Pinhead Bicycle Locking Skewer 4-Piece Set
Quick-release bike parts — like wheels, seatposts, and saddles — can be removed without tools and are often stolen piecemeal. For securing accessories, experts recommend Pinhead skewers, small locks for individual parts. “Essentially, you make it extremely difficult for thieves to target specific parts of your bike when your frame is locked to something,” said Sam Polcer, communications director for Bike New York. “It replaces quick-release components with components that require a special coded key that comes with each lockset.” John Keoshgerian, owner of Zen Bikes, is also a fan of this “no muss, no fuss” option. If you choose to purchase additional Pinhead locks, the company will design them to fit your existing key.
Foldylock Compact Bike Lock
Folding locks are newcomers on the scene. Devotees love that they’re so lightweight and easy to carry, but because they’re thinner than U-locks, not all models are as reliably safe. Crooks said Foldylocks “have put out a great folding lock that improves on its competition and is priced fairly.” The compact model weighs under three pounds and can easily be mounted on your bike until it’s time to unfold it into a hexagon shape that loops around your frame and wheel.
Slate has relationships with various online retailers. If you buy something through our links, Slate may earn an affiliate commission. We update links when possible, but note that deals can expire and all prices are subject to change. All prices were up to date at the time of publication.