That's what i thought but the people i have talked to have tons of riding experience and they insisted it would be bad. I personally don't understand why. My thinking is i would need to adjust seat height some and maybe cleat position but overall it would not differ much from my 172.5mm cranks and higher seat height. I thought about just trying it for a few hundred miles to see but i'm lacking a left crank arm so i can't put it on without buying an arm. I don't feel comfortable paying that amount of $$ for a crank arm if the crankset will not work for me because then i'm stuck trying to sell it..