Originally Posted by
FeelsyDSD
Just tried my Felt 25 x 700 tires and rims on a ride. Bikes of this type mine is 58 cm are rated for 275 lb at most and I am 385 lb. You would think that would make the ride worse since the tires are all the way to 130 psi. Ride is phenomenal, More active than a passive mountain bike ride which keeps my head in the game so far. ( just getting reacquainted ) lets see how long until a blowout. still lacking some confidence obviously. Statement complete.
Make sure your rim is rated for that pressure. (I trust that you have disc brakes or are aware the rim brake wear will quickly erode that max allowable pressure. Blown sideways are not pretty. If you are rolling when it happens, I hope you are riding a metal frame (fork). If it is a rear rim, that you are wearing sturdy jeans. Be aware also that larger tires and lower pressures have the same issues. (Very crudely, stated diameter times pressure = sideways force on the rim. So 35c tire with 93 psi is going to be about the same side force.
I'm not saying "don't do this". Just, be aware. I've done my crashes from ignorance and refusing to listen. One was life-changing and not for the better. I'm a light rider and kind to stuff. But I took chances with a fork I shouldn't have ridden. You probably should pay that same kind of attention to the rims you ride. Yes, the blown sidewall consequences are a lot lower than breaking a fork, but a ruined CF frame and the ER for stitches to a nasty jagged wound are nobody's idea of fun. (And most of all, I want you to be around here as a happy camper a long time!)
Ben