Best Bike Locks Under $20 in 2026: Cable & U-Lock
The Sportneer Bike Lock ($11.39) earns a 4.5-star rating as the best bike lock under $20 — its resettable 5-digit combination cable lock provides solid deterrence for short-duration parking in moderate-risk areas without a key to carry or lose. It's the top pick for casual cyclists locking up at shops, parks, and low-traffic areas.
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Sportneer Bike Lock
“A bike lock for low-to-medium security needs where brand recognition and advanced security ratings are not the priority. Verify the specific model's construction before relying on it for street parkin”
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The Sportneer Bike Lock delivers the best combination of security and convenience under $20. The 6mm thick hardened steel chain provides genuine deterrence against the tools a casual thief carries — unlike 4mm chains that cut in seconds. The 5-digit combination offers 100,000 possible codes, making it 10 times harder to guess than 4-digit alternatives. The combination is fully resettable so you can choose a number you will actually remember. Available in 3.2, 3.6, and 4ft lengths to suit different locking scenarios. Lightweight enough to coil in a jersey pocket or clip to a bag. The best budget lock for riders who make frequent quick stops.
Bike Cable Lock 6 ft 4-Digit Resettable Combination Anti-Theft
“A lightweight cable lock for securing secondary items like helmets or bags alongside a stronger primary U-lock. The reach and flexibility make it useful for awkward rack geometries.”
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The 6-foot Cable Lock trades some cut resistance for reach — its length lets you secure a bike to awkwardly placed posts, loop through both wheels simultaneously, or lock two bikes together with one lock. The heavy-duty vinyl coating protects against weather and frame scratches. The 4-digit resettable combination is standard for cable locks at this price. At $17 and 6 feet long, it is the most versatile option here for scenarios where you need length over security. Best used as a secondary lock alongside the Sportneer chain, or as a sole lock in low-risk environments.
NDakter 5-Digit Combination Heavy Duty Bicycle Chain Lock
“A thick chain lock that provides meaningful resistance to casual theft and opportunistic cutting. The 5-digit combination eliminates key loss concerns for daily commuters.”
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The NDakter Bike Lock at $9.49 is the most affordable chain lock on this list with a genuine 5-digit combination. At 4mm thickness it is thinner than the Sportneer, but it still provides better deterrence than any cable lock. Available in multiple lengths from 2.6 to 6 feet. The resettable combination and waterproof design make it a practical choice for light-duty use. Best for apartment storage areas, bike rooms, or short quick-stop errands where the risk is low and you want a lock that costs less than the snacks you are picking up.
Bike Locks Under $20 Buying Guide
Photo by Ernest Westphal / PexelsA bike lock under $20 provides basic deterrence for low-theft-risk situations: short stops, low-crime areas, or as a secondary lock. At this price, expect a cable or lightweight chain lock.
What You Get at This Price
Cable locks in this range can be cut in under 30 seconds with bolt cutters—they deter opportunistic theft, not determined thieves. Lightweight chain locks are only marginally better. A $15 lock is appropriate for locking up outside a coffee shop while you're watching your bike, or for a secondary anchor in addition to a better U-lock.
Lock Type
Combination locks eliminate key-carrying but are slower and can be reset accidentally. Keyed locks are faster in practice. Combo locks at this price have lower-quality mechanisms—4-digit combos with stiffer wheels are harder to feel-crack than 3-digit. Either works for the deterrence level this price provides.
Where to Lock
Even a strong lock fails if the anchor point is weak. Lock to a fixed, immovable structure—not a sign pole that can be lifted, not a chain-link fence section. Frame and rear wheel through the lock point; front wheel is secondary. A $15 lock used correctly beats a $100 lock looped only around the front wheel.
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Frequently Asked Questions
Is a $15 bike lock good enough?
Chain lock vs. cable lock — which is better?
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