Originally Posted by dessert1st
I'm reposting...
If I ride a 172.5mm crank on my road bike, would I use the same length on a cross bike?
(I use 175mm on my mountain bike)
I guess it would depend if you're a "spinner" (172.5) Or a "masher" (175). But really look at a measuring tape and see how much you of a difference you are talking about. Remember, we are talking
millimeters, not centimeters.