the Thule T2 Pro XTR is rated to carry 72

RG7: (extra large) 35mm palm

and it has Buttercups

killing 99

Compatibility: All SRAM MTB WIDE DUB BBs

FOX Enduro Elbow Guard - XL - Black PLP|Colour the Thule T2 Pro XTRThe Enduro Elbow Guards are lightweight and breathable for maximum comfort as you rip along the trail. They allow full range of motion, thanks to a high stretch rear panel, and feature D3O inserts for impact protection that are removable for when you want to wash the fabric of the elbow sleeve. The abrasion resistant elbow panel also brings some that extra boost of coverage should take a digger. Features D3O inserts for world leading impact protection