Intrepid Bicycle Commuter
Joined: Sep 2009
Posts: 819
Likes: 95
From: Upstate New York
Bikes: 1976 Motobecane Grand Jubile, Austro Daimler 'Ultima', 2012 Salsa Vaya, 2009 Trek 4300, Fyxation Eastside, State Matte Black 6, '97 Trek 930 SHX, '93 Specialized Rockhopper, 1990 Trek 950
I ride a SS for my 30-mile commute now, instead of a geared bike. I tried fixed gear, but it was just too brutal going down all of the hills. My commute has a lot of hills. The SS works out great though. I gained a ton of leg strength since going to SS from geared.
I have no knee issues whatsoever, and can't see it ever being problem associated with SS. Maybe there could be knee problems associated with fixed gear and lots of hill descents, due to all of the back-pressure applied to the pedals?