Roof top bike carrier

I have been using the roof top carrier for a year.  The trip this week one of the bolts broke.  I was able to weld it in Amani mountains and it worked better

• I would weld  the axle to the dropouts.
• I need to make another for the new style axles.
• for the rear I stopped using a v channel for the back tyre, it is just cinched down.  
• It helps to also cinch down the front fork.