Just read something on the net at www.nettally.com/palmk/bikefit.html
that a engineer raise about multipy 5.48 times your inseam and this give you your crank size. Pretty interesting read. Bases it on pretty interesting facts.
The biggest point, and what I'm wondering is who came up with the formula for cranks. If you put a 170 on the left and a 172.5 on the right you probably will not know the differnece. Because the difference is so minute. How do we trust the formulas that have always been used and reserch a new and better one if one exists.
I have used the Lemond formula's and have discovered them to put me on a bike that is too small. A seat height that is to short. I have the computrainer to prove that. More power with a 1 1/4 higher that what Lemond would have put me at.
How do say that a road bike fit and a tri bike fit is the same. Or even a mountain bike frame. Different crank sizes and especially a different seat tube degree. Will these frame and seat heights not be radically different, especially since the riding and the terrain is so different?
Just curious--with a 32.5in inseam acccording to the formula I would be using 178 size cranks. Radically different than the LBS, Lemond, Peter White formulas of 170-172.5 cranks. Who's right!?
Thanks for reading, Matt
that a engineer raise about multipy 5.48 times your inseam and this give you your crank size. Pretty interesting read. Bases it on pretty interesting facts.
The biggest point, and what I'm wondering is who came up with the formula for cranks. If you put a 170 on the left and a 172.5 on the right you probably will not know the differnece. Because the difference is so minute. How do we trust the formulas that have always been used and reserch a new and better one if one exists.
I have used the Lemond formula's and have discovered them to put me on a bike that is too small. A seat height that is to short. I have the computrainer to prove that. More power with a 1 1/4 higher that what Lemond would have put me at.
How do say that a road bike fit and a tri bike fit is the same. Or even a mountain bike frame. Different crank sizes and especially a different seat tube degree. Will these frame and seat heights not be radically different, especially since the riding and the terrain is so different?
Just curious--with a 32.5in inseam acccording to the formula I would be using 178 size cranks. Radically different than the LBS, Lemond, Peter White formulas of 170-172.5 cranks. Who's right!?
Thanks for reading, Matt