Edited version...... what position issues on a road bike are likely to cause hip flexors and core to be overused/sensitive in someone who can ride other bikes much longer and harder without issues?
Seems dumb. I presume you were clear about the usage of the bike? Why did you not just transfer the setup of the MTB over to the road bike?
@hippy started
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Edited version...... what position issues on a road bike are likely to cause hip flexors and core to be overused/sensitive in someone who can ride other bikes much longer and harder without issues?