Electric bikes represent a significant investment, often costing thousands of pounds. Protecting that investment from theft requires a robust security solution specifically designed for the higher value and weight of e-bikes.
The best bike lock for electric bike needs to balance security level, weight, and ease of use.
Traditional locks may not provide adequate protection for bikes worth several thousand pounds. Look for locks with high security ratings, hardened steel construction, and designs that make it difficult for thieves to use common tools like bolt cutters or angle grinders.
We researched and tested multiple locks to find the options that offer the strongest protection for your electric bike.
1. Sportneer Heavy Duty Bike Lock
This lock delivers solid protection for electric bikes at a reasonable price point, making it a practical choice for daily security needs.
Pros
- The 17mm shackle withstands serious force and resists common attack methods
- Included 5ft cable adds flexibility for securing wheels and accessories
- Two keys provide backup if you misplace the primary one
Cons
- The U-lock size feels a bit compact for larger posts or thick bike frames
- Mounting bracket only accommodates tubes between 26mm and 38mm diameter
- Weighs over 1.6lbs, which adds noticeable bulk to your ride
We’ve been using this lock on our electric bike for several weeks now, and the build quality genuinely impresses us. The polygonal shape gives it a robust feel, and the silicone coating actually protects our frame from scratches.
The steel cable proves incredibly useful. We can loop it through both wheels and connect everything back to the U-lock, which means our entire bike gets secured in one go. The zinc alloy core turns smoothly without any sticking or jamming.
Setting up the mounting bracket took just a minute. It clicks securely onto our bike tube and holds the lock firmly whilst we ride. The lock doesn’t rattle or shift around, even on bumpy roads.
The size limitation becomes apparent when we try to lock our bike to thicker posts. We sometimes need to rely more heavily on the cable, which isn’t quite as secure as the main shackle. Still, for typical bike racks and standard railings, it works perfectly well.
At under £20, we found this lock offers excellent value. It’s not the lightest option available, but the weight reflects genuine security rather than flimsy construction.
2. SPGOOD Bike Chain Lock
This affordable chain lock offers decent security for your electric bike with its 7mm hardened steel chain and customisable five-digit combination, though the fabric sleeve may wear down over time.
Pros
- The 830mm length wraps around bike frames and fixed objects with plenty of room to spare
- Setting your own five-digit code from 100,000 possible combinations beats carrying keys around
- At 750g, it’s light enough to transport without weighing down your electric bike too much
Cons
- The protective fabric covering the chain can deteriorate after a year of regular outdoor use
- The chain thickness measures closer to 6mm rather than the advertised 7mm
- The ABS plastic lock mechanism feels less robust than the metal chain itself
We’ve been using this SPGOOD chain lock for securing our electric bike at train stations and shopping centres. The combination lock worked smoothly from day one, and we appreciate not having to fish around for keys when we’re in a hurry.
The 830mm length proved genuinely useful when locking our bike to thick lampposts or when securing the frame and front wheel together. We could even loop it through two bikes when needed. The chain feels substantial in hand, and the hardened steel links haven’t shown any damage from daily use.
After several months of leaving it outdoors in various weather conditions, we noticed the fabric sleeve starting to fray slightly. This doesn’t affect the security, but it does mean the chain can scratch your bike’s paintwork if you’re not careful. The lock mechanism itself has held up well, with the number wheels still clicking into place precisely.
Setting our personal code took less than a minute following the instructions. We’ve never forgotten our combination, which beats the anxiety of potentially losing a key somewhere. The lock comes in 14 different colours, so we opted for a bright shade that makes spotting our bike in crowded bike racks much easier.
3. NDakter Keyless Combo Bike Lock
This heavy-duty combination lock offers excellent security for electric bikes with its thick shackle and bonus cable, though you’ll need to account for its weight when carrying it.
Pros
- No keys to lose or forget with the 4-digit combination system
- Generous internal locking space accommodates larger e-bike frames and components
- Includes a 5-foot steel cable for securing wheels and accessories
Cons
- Weighs 890g, which adds noticeable bulk when transporting
- Doesn’t come with a mounting bracket for the frame
- The cable is less secure than the main U-lock portion
We’ve been using this lock regularly for our e-bike, and the keyless design is genuinely convenient. The 4-digit combination means we never fumble for keys in the rain or worry about losing them during rides.
The U-lock itself feels reassuringly solid. That 0.57-inch thick shackle isn’t something you could snap with basic tools, and the silicone coating protects our bike’s paint from scratches. We appreciate how the internal space is larger than typical U-locks, making it easier to secure the frame to bike racks without awkward angles.
The included cable is a practical addition. We use it to loop through the front wheel and saddle whilst the main lock secures the frame. It’s not as robust as the U-lock, but it provides an extra layer of protection for components that thieves often target.
Setting the combination was straightforward, though the initial “0000” code should be changed immediately. The reset mechanism worked smoothly, and we haven’t had any issues with the numbers becoming stiff or difficult to turn.
The weight is the main compromise. At nearly 900g, it’s noticeably heavier than basic locks. We’ve got used to carrying it in a backpack rather than attaching it to the frame, especially since no bracket is included.
4. SPGOOD Bike Lock 1200mm/12mm
This lock offers solid basic security for your electric bike at a budget-friendly price, though you’ll want to pair it with a more robust lock if you’re parking in high-risk areas.
Pros
- The 120cm length gives you plenty of flexibility to secure your bike to various fixtures or even lock two bikes together
- The included mounting bracket keeps the lock handy on your frame without rattling about during rides
- Two spare keys mean you won’t be left stranded if you misplace one
Cons
- The 12mm cable can be cut with proper bolt cutters, so it’s not suitable as your only defence in risky locations
- The coiled design can be a bit fiddly to wind back up after use
- The lock cylinder requires regular lubrication to maintain smooth operation
We’ve been using this lock for quick stops at cafés and shops where we can keep an eye on our electric bike. The coiled cable design wraps around the frame nicely, and the mounting bracket has stayed put through bumpy rides. It’s reassuring to have that extra key tucked away at home.
The PVC coating has held up well in various weather conditions without showing signs of cracking. We’ve left it out in the rain several times, and there’s been no rust on the cable. The coating also protects our bike’s paintwork from scratches.
For overnight parking or leaving your electric bike unattended for long periods, we’d recommend using this alongside a heavy-duty D-lock. The cable works brilliantly for securing your wheels or accessories, whilst a stronger lock handles the frame. The 120cm length really shines when you need to loop around awkward bike stands or posts.
The lock mechanism turns smoothly when you remember to add a drop of lubricant every few weeks. We found the zinc alloy cylinder feels sturdy enough for everyday use. It’s light enough that you barely notice it on your bike, which matters when you’re already carrying the extra weight of an electric bike battery.
5. SPGOOD Bike Lock with 3 Keys
This chain lock offers decent security for quick stops and less risky areas, though it’s not built for all-day protection in high-theft zones.
Pros
- The 90 cm length easily wraps around multiple bikes or through both wheels and frame
- Waterproof cover over the keyhole keeps the mechanism working smoothly in wet weather
- Lightweight enough to carry without feeling like you’re lugging around a boat anchor
Cons
- The 6 mm chain thickness won’t stand up to serious bolt cutters
- Not suitable for overnight or full-day parking in city centres
- Some users found the chain could be slightly longer for more versatility
We’ve been using this lock for our electric bike during quick errands around town, and it strikes a good balance between portability and basic security. The nylon covering does its job protecting our bike’s paint from scratches, which we really appreciated after wrapping it around the frame several times. It’s genuinely light compared to heavier duty locks, making it easy to loop around the crossbar whilst riding.
The waterproof cover is a thoughtful touch that we noticed immediately. Living in the UK means dealing with plenty of rain, and the rubber flap keeps moisture out of the keyhole effectively. We haven’t experienced any rust or sticking issues even after months of use in typical British weather.
The three included keys are handy for sharing amongst family members. We keep one on our keyring, one at home, and gave the spare to our partner. The lock mechanism turns smoothly and hasn’t given us any trouble, though we wouldn’t trust this as our only defence in dodgy areas. It’s perfect for securing our e-bike whilst popping into shops or cafés where we can keep an eye on it through the window.
Buying Guide
When we’re shopping for a lock to protect our electric bike, we need to consider several key factors. Electric bikes cost more than standard bicycles, so investing in a quality lock is essential.
Security Rating
We should always look for locks with recognised security ratings. Sold Secure and ART ratings help us identify which locks offer the best protection. Diamond or Gold ratings indicate the highest security levels.
Lock Type
Different lock types suit different situations:
- D-locks/U-locks: Provide excellent security with hardened steel construction
- Chain locks: Offer flexibility and can secure multiple points
- Folding locks: Balance portability with decent security
- Cable locks: Lightweight but offer minimal security on their own
Material and Construction
We need to check the lock is made from hardened steel that resists cutting and drilling. The shackle diameter matters too – thicker shackles are harder to break. Weather-resistant coatings protect against rust and corrosion.
Size and Weight
We must ensure the lock fits around our bike frame and whatever we’re securing it to. Heavier locks generally offer better security but reduce portability. Consider where we’ll carry the lock during rides.
Key Features to Compare
| Feature | Why It Matters |
|---|---|
| Shackle thickness | Resists bolt cutters |
| Lock mechanism | Pick-resistant cylinders add security |
| Mounting bracket | Makes transport easier |
| Warranty | Shows manufacturer confidence |
Budget Considerations
We should spend approximately 10-15% of the bike’s value on the best bike lock for electric bike. Cheaper locks may save money initially but often fail to protect against determined thieves.