Chandne

You're definitely high- just like I used to be. In fact, I was a bit higher at times. I am also 175 lbs. On regular tubed tires that measure 28 and rims with internal width of 19, I run 75F and 85R but I also sit more upright. I am still high so I was trying 75/80 which is smoother. Since I run tubeless front-only now, I have gone to 70/78. I'll be going tubeless in June when Zipp 303 comes in and will likely run 70/75 on true-to-size 28s. That 70-80 range seems to be just as fast and much smoother. Since my frame is limited to 28 max tire size, I may not go much lower. If I could run 30-32, I'd get into the 60s. That will be the next bike.