Black Locks

For high-theft areas, pick a U-lock for maximum cut resistance; models like the Ultra 410 U-Lock pair well with an integrated cable for extra reach. Cable locks add flexibility for odd anchor points, and folding locks offer a compact compromise for riders who carry their lock regularly.

Measure the space around your frame and common anchor points so the lock will clear your tire and seatstays. Many bike locks come in lengths like an 18-inch design for compact carrying, while U-locks list internal dimensions you can compare to your frame.

Combination locks can be a convenient choice for everyday gear and travel when paired with solid construction; models like the Prosafe series and Hiplok Z-Lok use resettable three-digit mechanisms. They work well for low- to mid-risk situations, but consider a heavier-duty U-lock if you need higher cut resistance.

Lightweight options like the OTTO OTTOLOCK Cinch 18-inch and the Hiplok Z-Lok are designed for quick stops, offering portable protection without bulk. The OTTO uses kevlar and steel for a flexible, low-weight profile, while the Z-Lok combines a reinforced steel core with a resettable combo for easy transport.

Combining a sturdy U-lock with a looped cable covers both frame-to-anchor security and wheels or accessories; Kryptonite’s KryptoLok plus a KryptoFlex looped cable is a common layered setup. An integrated option like the Ultra 410 U-Lock plus Cobra Cable also gives a hard-point lock with extra reach for secondary items.