Originally Posted by
vintage cellar
I had a customer who bought an early pair of carbon rim wheels. We stressed, and the brochures ALL said not to exceed 120 PSI.
Customer was a Triathalete (groan).
Came back a coupla days later and said he was scared going down a long descent. Said he heard a loud "Craaack" from the rear wheel. He was wondering if it was a warranty issue ?
I asked him what PSI he infated his 20mm tires to ?
As if it was a completely normal question, he told me : the rear is 220 PSI, the front is 200.
I could not believe my ears. Sheesh, Triathaletes . . .
So be a little cautious when really pumping things up to get tires to seat. It shouldn't take THAT much extra pressure to get the beads to seat.
i wonder if a "fellow Triathlete" didn't give him that pressure advice...
i once had a prominent kart shop owner walk into my pit and advise me to up my tire pressures to 25+ lbs. and "it will make my kart faster".. I regularly ran 15.5 lbs rear, 15 front, on my kart. This was determined after MY chosen shop's owner told me what he runs, and after i did two days of testing.
i kept beating the "pit advice" offerer, race after race. The same day as "the Advice", he tried to cause me to spin out repeatedly by short braking, so i , somehow, failed to brake and avoid rear ending his kart on the 4th lap... he spun off turn 6 (now. was 7) into the infield, right across a Fresh COW PIE... the floorboard of his kart skimmed the top off that pie, and directed it all over him and his pride and joy kart.
Phil never gave me "advice" after that.