So far I've usually had pretty good results from the fit calculator.
My MTB is spot on with the calculator.
Also my road bike specification works... Well, it works but also gives me a bit short top tube length on the competetive fit. Eddy and french are more on the money.
I'm 6'5" with 37.5 inch inseam and the top tube lengths I'm given are 57-59cm. I use a 59cm with a 130mm stem and lots of setback. Also the saddle heights the calculator gives are seriously too high in all but the french fit. Competetive fit would like to put me on bb-saddle top 87cm when I actually ride 83-84cm.
Also the suggested setback is 7-9cm when I use 12cm. My saddle is a contributor to this situation, it being on the short side so my actual setback might be somewhere in the 10.5-11.5cm region.
Now this is where this get strange. I did the calculator with a friend of mine.
He's 6'2" with a 36.6 inch inseam. We checked and none of the measurements we have are radically different. A few cm here and there but the fit the calculator gives him is pretty radical. 62-63cm top tube with 130mm stem. Normal setback of 7-8cm.
So he is shorter than me, but needs a frame that is 3cm longer. I could never ride a 62cm top tube with a 130mm stem.
We checked and double checked the measurements and did them twice. so nothing should be off.
Could there be a glitch in the calculation formula? has anyone got similiar results with just small differences in body size and proportions.