9 Best Ebike Lock | Ebike Locks That Actually Deter Thieves

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Gold-rated Sold Secure protection from a name that bike thieves respect and owners trust.

The Evolution Mini-9 is Kryptonite’s mid-range workhorse, and it earns its premium reputation through steel alone. The 13mm hardened max-performance steel shackle is rated Gold by Sold Secure — a cert that means it resists cutting, leverage, and drilling far better than commodity locks. The patented double deadbolt design locks the shackle at both sides of the crossbar, so twist attacks that exploit a single locking point simply don’t work. The disc-style cylinder is also pick-resistant and drill-resistant.

At 3.15 pounds, it is noticeably lighter than the 3.8-pound chains while offering a higher security rating. The interior space measures 3.25 by 9.5 inches — tall enough to fit around a fat e-bike tire and a pole, but compact enough that a thief can’t easily fit a car jack inside to break it. The included FlexFrame U-bracket makes mounting on the bike frame quick, though buyers report the installation takes about 10 minutes and the bracket can loosen over time.

One thing the Alshaay lock above includes that this one does not: a cable for the front wheel. You will want to add one if you own an e-bike with a hub motor. The dealer’s feedback is consistent — this lock deters theft from opportunistic thieves, but no lock is grinder-proof, and owners note parking next to a more expensive bike is still a good strategy.

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An extra-wide U-lock that swallows fat-tire e-bikes and still leaves room for a pole.

The NDakter lock solves a specific problem: most U-locks are too narrow for the wide tires and oversized frames common on electric bikes. This one has an inner opening of 5.5 by 7 inches, which fits even a 4-inch fat tire plus the bike frame plus a solid post. The 18mm hardened steel shackle is rated to withstand 12 tons of hydraulic cutting force. It also uses a double deadbolt locking system, locking both sides of the U for extra twist resistance — the same design philosophy as the Kryptonite Evolution but with a wider opening.

A 6-foot by 0.4-inch steel cable is included, giving you the option to loop the front wheel or a second bike into the same lock. The 2.5 mm silicone cover protects the bike frame from scratches and adds some weather resistance to the lock body. Owners call the quality strong and the locking mechanism smooth, though they note the weight is significant — at 3.5 pounds, it is on par with the Kryptonite chain but more compact.

The main difference from the Alshaay lock above: the NDakter has a wider opening (better for fat tires) and the same 12-ton rating, but the Alshaay’s shackle is slightly thicker at 20mm. For most e-bikes, the NDakter’s 18mm is plenty — the trade-off is a slightly narrower internal width than the Alshaay’s 9-inch dimension.

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A no-key chain lock that wraps around almost anything, with a 4-digit code you set yourself.

The Keeper 790 is Kryptonite’s solution for riders who hate carrying keys. The 3-foot chain is made from 4-sided 3T manganese steel links, and while the individual links are a modest 7mm thick, the 3T treatment makes them significantly harder to cut than standard steel. The 4-digit combination gives you over 10,000 possible codes, and the large, easy-to-read dials are a genuine help for anyone whose eyesight isn’t what it used to be. Owners who have lost bikes to cable cuts specifically praise this as a major upgrade.

At 3.8 pounds, it is one of the heavier options here, but the fabric sleeve prevents scratches on your frame and makes it more comfortable to carry wrapped around the seat post. The length — 35.4 inches — is enough to loop around a thick pole and through your e-bike’s frame, and one owner reports it is “long enough for e-bike” in their experience. Durability (38) is the top positive aspect, with owners noting it survives being run over by trucks repeatedly.

The honest trade-off: the combination mechanism is a medium-security lock. Chain-link thickness of 7mm is resistant to bolt cutters but not invincible, and the lock cylinder itself can be picked in 5-10 minutes by a skilled thief. This is not a lock for overnight parking in high-theft areas. The biggest risk is accidentally changing the code — the dials can be bumped and reset.

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A heavy chain at a lightweight price — the strongest value proposition in this lineup.

The INTEKIN chain lock strips away frills and delivers the core thing that matters: a thick, heavy chain that makes a thief think twice. The 8mm square links are significantly thicker than the 7mm links on the Kryptonite Keeper, and they are made from alloy steel and zinc for cut resistance. The fabric sleeve is a practical touch that protects your bike’s paint and keeps your hands clean from chain grease. Owners describe it as “heavy duty and feels secure,” with the sliding keyhole cover keeping the lock mechanism clean from road grime.

At 3.1 pounds, it is lighter than the Kryptonite chain despite the thicker links, and the 4-foot length works well with wall hooks and bike carriers. Durability (56) and Quality (44) are the top aspects owners praise most. A key difference from the Alshaay lock above: this is a chain, not a U-lock, which gives you far more flexibility in where and how you lock up — around a tree, through both wheels, or through the frame and a bike rack in one loop.

The honest caution: the key mechanism receives mixed reliability feedback. While most owners find it easy to lock and open up, a small number have reported the key not turning smoothly. This is a genuine variance in manufacturing, and if you buy one, test the lock at home before you rely on it in the field. The chain is also heavy enough that carrying it in a backpack is noticeable — wrapping it around the seat post is the preferred method.

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The folding lock that proves security doesn’t have to weigh you down — just 2.2 pounds for a 35-inch hardened steel link.

The KOHLBURG folding lock is the lightest option in this premium tier, and its folding-link design is a genuine innovation. At only 2.2 pounds (plus 0.3 pounds for the bracket), it is nearly a full pound lighter than the Kryptonite Evolution Mini-9 with a 35-inch effective reach. The links are made from hardened special alloy steel, and the manufacturer designed it to resist bolt cutters and hacksaws — the folding geometry makes it difficult to get a cutting tool into the gaps. The multi-disc cylinder is a high-security design that forces a thief to align multiple discs simultaneously to pick it, which the brand claims is extremely difficult.

What owners appreciate most is the quiet ride. The precision manufacturing eliminates rattling while cycling — a common complaint with folding locks. The bracket mounts to the frame using either frame straps (for frames with a circumference of 2.8 to 6.9 inches) or water bottle cage holes, making it compatible even with very narrow frames. At 35 inches, the lock is long enough to wrap around a thick pole and through an e-bike’s frame and wheel.

The trade-off: while the lock itself is bolt-cutter proof, no lock is completely immune to angle grinders. A few owners reported the lock fell off during rough rides, though the brand’s customer service was praised for resolving those cases. The secure fit is a mixed aspect — double-check the bracket tightness before riding on bumpy trails. Unlike the NDakter lock above, this one does not include a cable for the front wheel.

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The ABUS that the Lock Picking Lawyer himself recommends — engineering-grade security for high-value e-bikes.

ABUS is a German security company that sets the benchmark for bike locks, and the Granit XPlus 540 is their mid-length powerhouse. The 13mm square parabolic shackle is made from specially hardened steel, and the lock uses ABUS’s own XPlus cylinder technology. The XPlus cylinder is a disc-detainer design that is notoriously difficult to pick — as one owner noted, “Lock Picking Lawyer said get this one, good enough for me.” The Power Cell technology inside the lock body provides additional resistance against impact and twist attacks.

At 300mm (11.8 inches) of height and a 108mm (4.3 inch) width, the 540 is long enough to fit most e-bike frames and wide tires. The steel is heavy at 3.7 pounds, but it is still lighter than a 10-pound chain while offering a higher security rating (ABUS Security Level 15, which roughly corresponds to Sold Secure Diamond). The keyhole comes with a cover for weather protection, and the lock includes two keys plus a code card for ordering duplicates. Owners mention the lock mechanism has a satisfying “clicky” feel and the XPlus cylinder functions easily.

One clear gap: the mounting bracket is sold separately, unlike the Kryptonite Evolution’s included bracket. The 12-inch length can also be a bit long for some securing situations — it may not fit as tightly against a thin post as a shorter U-lock would. It is not fully angle-grinder proof, as no portable lock is, but its Diamond-level rating and XPlus cylinder mean it will take a thief significantly longer than any entry-level lock.

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A Diamond-rated beast with a 4.5-inch opening that fits enormous e-bike tires and thick poles in one pass.

The Seatylock Mason is the widest U-lock in this roundup, with an interior clearance of 115mm (4.52 inches). That means you can lock through a fat tire and around a thick post without struggling — a problem many standard U-locks create. The pentagonal-shaped crossbars are designed to resist twist attacks, and the double deadbolt locks both sides of the U. It carries a Sold Secure 20/20 Diamond rating, which is the highest independent security certification available. Owners who have tested it report it is “extremely resistant to grinders, bolt cutters, saws, and freeze attacks” — the hardening process on the steel is the real deal.

At 3.8 pounds (1.72 kg), it is heavy, but it is lighter than a high-security chain of equivalent resistance. The lock is large enough that one owner uses it to lock both wheels and the frame to a pole with a single lock. The automatic cylinder shutter keeps dust and water out of the keyway, and the lock comes with three automotive-standard keys. A 3-year manufacturer warranty covers product defects. Durability (58) and Quality (57) are the most praised aspects, and Security (45) rounds out the top three.

The key limitation: the mounting bracket is not included and is sold separately — an important point versus the Kryptonite Evolution which includes one. The size can also be a problem for aero road bikes with narrow frames; some owners note it is heavier than other brands. For e-bikes, however, the extra weight is negligible compared to the massive security benefit. The NDakter lock above has a slightly thicker shackle (18mm vs the Mason’s), but the Mason’s Diamond rating is in a different security class.

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A folding lock that folds into a compact brick of steel — 0.25-inch hardened plates in a portable package.

The FoldyLock Forever is Seatylock’s answer to the folding-lock market, and it brings a different philosophy than the KOHLBURG. Instead of prioritizing low weight, the FoldyLock uses 0.25-inch hardened steel plates throughout its folding links. The result is a lock with an 18/18 Sold Secure Gold rating that feels massive in the hand — at 3.9 pounds, it is the heaviest folding lock in this roundup, but its plate design is harder to cut through than the round links of most folding locks. The patented anti-tamper rivets protect against side attacks, and the lock mechanism itself is key-operated (harder to pick than a combination lock).

When folded, the lock measures just 2.72 by 1.85 by 8.07 inches — compact enough to fit in a bag or mount on the frame. The included mounting case attaches to the bike frame using straps or bottle cage screws, and owners praise the silent ride — no rattling even on bumpy roads. At 35.4 inches of circumference, it can wrap around a thick pole and through an e-bike’s frame. Quality (57) and Durability (50) are the most-discussed aspects, and owners describe it as “heavy but compact” with excellent build quality.

The honest trade-offs: the coating on the plates scratches fairly easily, which may bother aesthetic-minded owners. The locking direction is reversed (counterclockwise to lock), which takes a minute to get used to. Some owners also note that the 35.4-inch length can feel short when trying to lock around unusually large objects like thick tree trunks. The KOHLBURG above is lighter and easier to carry; the FoldyLock is heavier but offers more raw steel in the links.