Robert Axle Project BOB Trailer axle nuts for solid axles e-bike M12x1.25

Fit a BOB trailer to your e-bike! 

The adapter threads on to axles with an M12x1.25 thread.

The Robert Axle Project Trailer Hitch Adapter for Rad Power Bikes and Mahle/EBIKEMOTION Equipped E-Bikes.

Robert Axle Project’s M12 x 1.25 adapter for BOB Trailers is designed to allow attachment of any hitch-mounted trailer. These Hitch Adapters fit all BOB trailer models.