The Causal Relationship Between Shorts and Speed

"I suspect that longer shorts get in the way. You know, I reckon they'll create some friction," he says. "If you happen to be faster, you're more likely to want to wear shorter shorts because they make you faster." He adds: 'There's no real practical reason why cyclists shave their legs' The full-time runner and professional runners will go for running specific shorts - but those who are just giving it a go may not need them.