- The Howler frame comes with Roasted double butted top and down tubes to make the frame lighter and the front end stronger, a higher bottom bracket and a lower standover height, seat stay brake mounts, sleek tapered chain stays, 3/16" thick heat-treated drop outs and custom laser cut gusset and seat stay bridge. Weight 5.0lbs. @20.75". Headset, gyro tabs and bottom bracket sold seperately.