A throttle tube assembly including a throttle tube, a throttle body, a bearing, and a stop collar. The throttle tube extends along a central axis from a proximal most end to a distal most end, the throttle including a lumen extending through the throttle tube. The throttle body is connected to the throttle tube, at the proximal end of the throttle tube, the throttle body having a bearing seat aligned along the central axis with the throttle body. The bearing being disposed in the bearing seat and axially aligned with the throttle body and partially axially aligned with the throttle tube. The stop collar is fixed to the throttle body configured and arranged to actuate a throttle by wire system.