I ride about 20 miles on my route, at the 15 mile mark I always experience sit bone pain/ache. So much so that it is uncomfortable enough to make me get off the bike for 5 minutes. I then get back on and everything is OK and I continue home the last 5 miles.
Other than that my new bike fits perfectly, I'm 5'8 on a 54cm Jamis Icon Pro. For the two weeks Ive had the bike, I have NO soreness in neck, arms, shoulders, back etc. My hands are relaxed on the hoods and extremely comfortable in the drops. No numbness anywhere, perfect fit you could say. I rode for 4 days straight, 20 miles each day. I did experience a slight ache in my right kneecap on day 2. I did the fully extended leg, heel to pedal measurement and pulled the saddle up 1cm and that problem is gone on the 3rd and 4th day. I am wearing Pearl Izumi liner with chamois under cargo shorts. When I get the sit bone pain, I get up out of the seat and also experience like a 5 second pain down there with the little general. Again no numbness, just very brief and temp pain until I get off the saddle. Could it be I am just riding too much? or ride more and need to get used to new saddle? Any thoughts would be appreciated, thanks.