the vigor rs is made specifically for heavy riders on crappy terrain. im 6' tall, 200# and ride on some of the most garbage pavement you've ever seen. if anyone reading this thread did the ms150 in new bern, nc, chime in and vouch for the crap pavement. ive hit many a pot hole thanks to folks ahead of me not calling road hazards, and these wheels are true as the day they came home to me.