It looks like a lot of folks agree with you on that one. I could have added - as an indication of how much strain the chain and cogs are under - that I weigh 180 lbs, the biking I do is a gentle downhill slope to a river, then loops along the river where it's flat, then back up the slope to home, and that standing on the pedals makes me a bit nervous and so I keep my butt firmly attached to the saddle...and check the tire PSI daily,