Chafing

[Eden]

.......You are sitting on parts that ought not be sat on while riding. You should not be leaning forward on that area. You should be sitting on your ischial tuberosities. (sit bones)....

Unfortunately on a TT or Tri bike this can be more difficult to acheive as you are in a position that is intentionally leaning far forward (onto aerobars). Many people who can tolerate and even like a non-cut out saddle on their regular road bike find that it is necessary on their TT bike. It is possible to be comfortable on a TT/Tri setup, you just may have to work at it a little harder and remember that any bike on a trainer is harder on your bits than being out on the road. If your wokout is long, take some breaks - get off and walk around - if you can't get off at least stand up out of the saddle every once in a while, sit up with your hands on the tops of bars during rest intervals, etc, get the get the blood flowing and rearrange your sitting position a bit.