AXA Block XXL Ring Lock + BES3/4 Battery Lock for E-Bikes

AXA Block XXL: Smart Frame & Battery Lock for Bosch e-Bikes

The AXA Block XXL is a combined frame and battery lock built specifically for e-bikes equipped with a Bosch Smart System (BES3) frame battery. Its extra-wide 60 mm opening comfortably accommodates wider tires and fenders, so it fits a broader range of e-bike frames without hassle. A dedicated cut-out allows you to attach an AXA plug-in chain, letting you secure your bike to a fixed object for an extra layer of protection. With a hardened steel shackle and cylinder housing, this lock offers dependable basic security for daily riding. Best for e-bike owners with a Bosch Smart System battery who want solid, everyday theft protection combined with the flexibility to add a chain lock.

Key Features

• Combined frame and battery lock designed specifically for Bosch Smart System (BES3) e-bike batteries
• Extra-wide 60 mm opening fits bikes with wider tires and fenders
• Cut-out for an AXA plug-in chain, enabling you to anchor your bike to a fixed object
• Hardened steel shackle and cylinder housing for reliable daily theft protection

Specifications

• Type: Ring lock + battery lock (Block XXL)
• Compatibility: Bosch Smart System (BES3) frame battery e-bikes
• Opening width: 60 mm
• Shackle material: Hardened steel
• Chain compatibility: AXA plug-in chain (via dedicated cut-out)
• ART certification: Not ART-certified

Is this lock covered by bicycle insurance?

No, this version is not ART-certified, so it generally does not meet the requirements for bicycle theft insurance. It’s a solid choice for everyday basic security, but if insurance coverage is a requirement, check with your insurer or look for an ART-certified alternative.

Will this lock fit my e-bike’s battery and tires?

The AXA Block XXL is designed for e-bikes with a Bosch Smart System (BES3) frame battery. Its extra-wide 60 mm opening is specifically made to accommodate wider tires and fenders, making it a good fit for many modern e-bike frame designs.

Can I use this lock with a chain for extra security?

Yes, the lock features a built-in cut-out for an AXA plug-in chain. This lets you easily connect a compatible chain and secure your e-bike to a fixed object like a bike rack or post, adding an extra layer of protection beyond the frame lock alone.