I recently had knee troubles to the point that I've been off the bike for 6 weeks.
So I got my bike re-fitted along with new shoes, reduced the Q factor to align better with my hips and got custom insoles to correct my feet pronation that could have been the main culprit.
I want to cover all my bases and don't want to be sidelined again so after doing some research online I came along two formulas to figuring out the crank length w/ my inseam being 73cm (28.5 inches)
1. inseam(in cm) x 2.16 = 157 crank
2. (inseam x 1.25) + 65 = 156 crank
That's a big jump from my 170s that came on my bike that I've been riding for years but perhaps having a bad fit for all those years finally caused my injury?
So I just wanted to know if there's anyone out there that has used these formulas and whether they are a good idea. There's some 165mm that I found online for cheap which will be shorter than what i have but going to the 155 or even 160 from Specialites-TA will be a significant investment. Is it worth it? I'll take any feedback! Thanks! :thumbsup:
So I got my bike re-fitted along with new shoes, reduced the Q factor to align better with my hips and got custom insoles to correct my feet pronation that could have been the main culprit.
I want to cover all my bases and don't want to be sidelined again so after doing some research online I came along two formulas to figuring out the crank length w/ my inseam being 73cm (28.5 inches)
1. inseam(in cm) x 2.16 = 157 crank
2. (inseam x 1.25) + 65 = 156 crank
That's a big jump from my 170s that came on my bike that I've been riding for years but perhaps having a bad fit for all those years finally caused my injury?
So I just wanted to know if there's anyone out there that has used these formulas and whether they are a good idea. There's some 165mm that I found online for cheap which will be shorter than what i have but going to the 155 or even 160 from Specialites-TA will be a significant investment. Is it worth it? I'll take any feedback! Thanks! :thumbsup: