If your bike seat's nose is too wide for the riding position, it may come into contact with pants fabric, and if there is a plastic trim piece around the bottom as some do, it could hypothetically cause some premature wear. Only other thing i can think of is that your natural leg position has your feet not straight down from your pelvis, which would lead to the inner thigh part of the pants to rub 2x per crank revolution........ that could add up over time.
Originally Posted by
TenSpeedV2
Want to run through the pants quickly? Commute in jeans. See how those hold up.
My oldest pair of jeans (7 years) recently got a hole in left knee. No other wear that i can detect. I've used them enough that there is the shape of my cell phone, ipod, and important cards bleached/stretched into their respective pockets. I've literally never not ridden in jeans when not wearing shorts, never been an issue....
- Andy