Ahhh, Fox, You and I have had a lot of experience with bicycle racing. A very good analogy, in my younger years I pushed a 52 front with a 11 tooth rear. This was track bike racing in Chicago (a track bikers dream), my knees are still in fair shape which is a miracle. I broke my back in Dec. but, I'm still training to compete in the Spring Senior's race in 2022. You have to keep going. PM me I would love to hear your history. Ed
