Hello to all. I am currently riding a with a 172.5 and looking to go to a 170 because my inseam is 28in. What would be the pros and cons from doing this or should I just stay at a 172.5?
You won’t notice the difference going from 172.5 to 170.
I have a 30" inseam, and 165mm works pretty well for me (TT bike) - though I had to adjust to it, coming from 175’s. My TT bike is 165, and road bike is 172.5.
I’d go 160-165 with a 28" inseam, at least for a tri bike. Shorter cranks will allow you to open your hip angle more.
I have a 28" inseam and just moved from 170’s to 165’s on one of my bikes. Honestly I didn’t notice any difference.
In a few weeks I’m going back to 170’s to see if I can feel any difference again. It will be about 6 weeks on them.
jaretj
I went from 175 to 170 a month ago. Did not notice any watt droppage, cadence went up 4-5 rpm. I seem more comfortable in the aero position but this may just be a placebo effect.