A cable lock stops an opportunist, not someone who came prepared with cutters. This folding bike lock, sometimes called a bike chain lock for its hinged steel-link design, uses steel alloy bars connected by hardened rivets, tested against cutting, drilling and smashing, then folds down to a compact 7.5 x 6.6 x 5.5cm block that mounts right on the bike frame instead of living in a bag.

The 78cm length wraps around a bike frame, wheel and a fixed post or rack all at once, giving real anti-theft coverage instead of just locking the frame to the wheel. A dedicated mount attaches to the seat post or frame, so the lock travels with the bike and is ready whenever needed.

Why It Stands Out

• Hardened steel alloy rivet links (HRC45) — quenched for extra hardness, tested against cutting, drilling and smashing.
• Anti-drill lock cylinder — the keyhole is reinforced against drill attacks, a common way basic locks get defeated.
• 78cm folding length — long enough to secure the frame, a wheel and a fixed point, not just the frame alone.
• Folds to 7.5 x 6.6 x 5.5cm — compact enough to mount on the bike instead of taking up rucksack space.
• Two mounting methods — strap it to a seat post with the included skidproof loop straps, or screw the mount directly to the frame.
• 3 keys included — spares on hand without an extra trip to get one cut.
• Suits MTBs, road bikes, motorcycles and e-bikes — one lock covers most of what's in a garage or shed.

Where to Use It

• Street parking — locking up a bike, e-bike or motorcycle at a rack or post.
• Trailheads — anywhere a flimsy cable lock or basic bike chain lock isn't enough.
• Daily commuting — compact folded size makes it practical to keep mounted permanently.

How It Works

1. Hardened steel bars connect via rivets that resist cutting, drilling and prying.
2. The lock folds flat at each rivet joint, collapsing into a compact block for storage.
3. An anti-drill cylinder protects the keyhole itself from being drilled out.

How It Compares

Setting It Up and Using It

1. Choose a mounting method: thread the included loop straps through the mount and secure it to the seat post, or screw the mount directly to the bike frame with the included screws.
2. Push the folded lock into the mount until it clicks into place for storage.
3. To use, unfold the lock, wrap it around the bike frame, wheel and a fixed rack or post, then insert the key and lock.
4. To reset or remove the lock core, take the key out, the core pops out, then press it down to reset.

Tip: Keep one spare key at home in case the daily-carry key is lost.

Care and Maintenance

• Wipe down the lock and keyhole periodically to keep dirt and grit out of the mechanism.
• Keep spare keys somewhere safe and separate from the ones carried daily.
• Store the lock folded in its mount when not in use.

Product Specifications

What's in the Box

1 × Folding Lock
1 × Mount
2 × Screws
3 × Keys
2 × Skidproof Loop Straps