My question is as per the subject line, going out to the TR forum for some accurate guesses before I decide whether I need to go back to the bike shop for fit advice.
I’ve currently only got power on my road bike with 170mm cranks. For some upcoming TTs and then next year 70.3 season I’d like to have power on my P-series. A cheaper alternative to buying a 165mm crank power meter could just be to switch the cranks over for race days etc. I have thought about a Favero Assioma etc but I’ve got Shimano pedals on my road bike, P-series and my Shiv which lives on the trainer.
How much do people think I’d need to adjust my saddle height and fore aft to accommodate?