Originally Posted by
gugie
I have a bike with 42mm Hetre tires, another with the 50+mm Rat Trap Pass 26". The 50+ is definitely squishy on the road, but excels on rough gravel.
Which bike are you running the 42 mm tire? Which one the 50 mm tire? From the posts here, it looks as if many 650 conversion bikes top out at 38 mm tires.