well i decided to throw some slicks (Ritchy) on my Specialized Hardrock Pro and ride those in the city streets this season. ive taken it on trips of 20 - 30 miles and my tailbone kills afterward. I have tried 2 different saddles. Not sure what is wrong? Maybe any mtn bike at this distance is crazy and will cause this. I dont know.
I ride a small frame which in itself looks funny because the top tube slants down so much due to the suspension fork. IM 5'6 with about 30 inch inseam and have plenty of clearance. The seat is up out of the frame over a foot to give me a good pedal stroke.
Most bikes i have had in the past have been more cross country bikes (GT Zaskar, Outpost Trail, etc) have been more "level" and square fitting.
Either way....i notice this pain on my road bike as well so it isnt limted to just my mtn bike. I put clipless pedals on it and im wondering if it is due to pulling up on the pedals which pushes me harder into the saddle? The saddle is level. I checked that.
I have padded shorts but havent had them out to see if it helps. Mabye that is my next test.
Just looking for ideas. My legs are cached around 30 miles but i know it wont be long until i want to go farther and my backside wont take it.