My friend is a 240lb rider use to ride trials, 3 foot rock gaps and 5 foot drops are nothing uncommon for him. He also rides alot of rocks most stuff I and other riders walk over. He has a 99 stumpjumper for "xc" riding he has made about a dozen wheels look like tacos but he rode rhyno lites for the last 4 years on xt hubs and has not killed them yet.