Build your custom cruiser with this featherweight pedestal mount aluminum 150mm rear dropout bicycle engine frame. Ideal for use with 2 stroke engine kits. Use with heavy-duty disc brake axle for single or multi speed sprockets. Cool and clean brushed aluminum finish. Compatible with both caliper and disc brakes and can accommodate up to 2.25″ wide tires with enlarged 150mm wide rear dropout area. (HD Wheel and Axle Kit required for disc break use)