Originally Posted by
mattcalifornia
Maybe -- but the number one cause of hamstring problems is sitting for long hours -- at a desk, on the couch, in the car, on a plane, wherever. When you're sitting, you're hamstrings shorten up. It's an extremely common problem.
He doesn’t mention sitting a lot. According to Bike Fit Tuesday, most male riders have their saddles too high. He also mentioned that a lot of bike fitters set them incorrectly too high. If sitting too much is not an issue, it could be something to look at.