I had the regular Race Lite's (2013 model) on my bike and at anywhere from 240-260 while I had them, they were fine. I took them on some pretty chunky terrain and even off small drops and jumps. Commuting/XC you should be fine.
I've been running the RXL's for about a year and a half XC/trail riding. Mine are the black lettering on black on the rims with white spokes and the Bonty hubs.
I'm 6'6" 240 lbs. i've had to have the part the cassette is attached to replaced twice - keep managing to mangle the pawls inside. But it's been a $30 repair so I haven't cared.
Otherwise been great - haven't even needed truing yet.
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