[novamx3]

So, we've sheered bolts on our drivetrain in the past (last year) our solution was to use vex wheels with versa hubs... Well today I hear the 6" vex mecanums are prone to breaking the plastic tab that holds the rollers on. When this failure occurs does anyone have an idea of a more robust wheel we can replace it with?
Ideally one that will not result in us sheering bolts again!
Thanks in advance and happy last week of build season!