Abus Pro Amparo 4750XL NR

The ABUS Pro Amparo 4750XL NR is a frame-mounted wheel lock for quick, everyday stops. It sits over the rear wheel and locks it in place, making it much harder for someone to simply roll the bike away.

This style of lock is all about convenience. It is useful when you are popping into a shop, grabbing a coffee, stopping at school drop-off, or keeping a loaded cargo bike steady while you deal with kids and gear. For proper bike parking, use it with a second lock that secures the frame to something fixed.

Why we like it

A frame lock is one of those small upgrades that makes a transport bike easier to live with. Instead of fishing around for a lock every time you make a quick stop, you can lock the rear wheel in a few seconds.

The 4750XL has a large wheel opening, which makes it better suited to bikes with wider tyres or mudguards. The NR key setup is also handy if you do not want the key left in the lock while riding.

Best for

• City bikes and everyday commuter bikes with compatible frame lock mounts
• E-bikes where quick-stop security is useful during errands
• Cargo bikes used for school runs, groceries and short town stops
• Riders who want a lock that is always on the bike
• Using with a plug-in chain, chain lock, D-lock or folding lock for better security

Compatibility and fit

This lock fits bikes with compatible frame-lock mounting points near the rear wheel. Before ordering, check that your bike has the correct mounts and enough clearance around the rear tyre, mudguard, rack and any child seat or cargo accessories. The 4750XL has an extra-large wheel opening for wider tyres, but fit still depends on the frame and accessory setup.

No frame-lock mounts? Some bikes can still use a frame lock with an adaptor strap. The ABUS Clutching Strap LH Adaptor is made to help mount compatible wheel locks to bikes that do not have dedicated frame-lock mounts.

If you are unsure, send us a photo of the rear wheel area from both sides. We need to see the seatstays, tyre, mudguard, rack, any child seat or cargo accessories, and any mounting points near the rear wheel.

View ABUS fit and product information

Good to know

This is not a standalone high-security lock. A frame lock stops the rear wheel from turning, but it does not lock the bike to a fixed object by itself. For commuting, e-bikes, cargo bikes, or anything valuable, use it alongside a proper chain, D-lock or folding lock.

For quick stops, it is extremely convenient. For longer parking, lock the frame to something fixed, choose a visible and well-lit spot, and use a stronger second lock.

Final word

The ABUS Pro Amparo 4750XL NR is a practical convenience lock for bikes used every day. Choose it if you want quick rear-wheel security built into the bike. Pair it with a stronger main lock when the bike is being left unattended for more than a quick stop.