If you need a replacement rear axle for Motovox MBX10 and MBX11 mini bikes, you can always get one from us. We carry this M12 x 1.25 x 255 axle bolt and a copious cornucopia of parts and accessories for the Motovox MBX10 / MBX11 mini bike series. This rear axle bolt has a corrosion-resistant black zinc oxide finish.