ld be reduced, but we wanted to use integrated seat tubes on some of our designs and wanted to leave some room for that. Why is the rear axle fixed and positioned like it is Making the bottom bracket fixed would have required space for adjustment at both ends of the jig. Fixing the rear axle saves space. In addition, attaching the profile holding the rear axle flush with the supporting (horizontal) profiles situates the centre line of the frame n.
ld be reduced, but we wanted to use integrated seat tubes on some of our designs and wanted to leave some room for that. Why is the rear axle fixed and positioned like it is Making the bottom bracket fixed would have required space for adjustment at both ends of the jig. Fixing the rear axle saves space. In addition, attaching the profile holding the rear axle flush with the supporting (horizontal) profiles situates the centre line of the frame n.