What is the relationship between frame size and top tube length? How does one determine which frame size one ought to purchase in a given model of bike? I have looked at the tribike fit section and I've yet to uncover this information. If I'm missing something that has already been posted on the site, please direct me to the right place.
The reason I ask is that I am considering a new tribike, and my bike woes of late have all been related to fit. I live in a bike fit wasteland, so I will have to figure everything out (to the best of my ability) on my own. If I knew what size frame I should start with, I think the rest of the tribike fit section would make more sense.
I have tried inseam x .67 and I'm not comfortable with the figure I'm coming up with. My inseam is 33, so I come up with a 56cm frame. I'm 6'2", and I know I don't fit on a 56cm bike. (I've had a 57cm QR Kilo that was too small. I was too scrunched up on the bike; a 57cm Kilo carries a 55cm top tube, according to the website.)
Am I correct in my belief that there is more to frame size than just frame size; that it is also frame size in relation to top tube length?
RP
The reason I ask is that I am considering a new tribike, and my bike woes of late have all been related to fit. I live in a bike fit wasteland, so I will have to figure everything out (to the best of my ability) on my own. If I knew what size frame I should start with, I think the rest of the tribike fit section would make more sense.
I have tried inseam x .67 and I'm not comfortable with the figure I'm coming up with. My inseam is 33, so I come up with a 56cm frame. I'm 6'2", and I know I don't fit on a 56cm bike. (I've had a 57cm QR Kilo that was too small. I was too scrunched up on the bike; a 57cm Kilo carries a 55cm top tube, according to the website.)
Am I correct in my belief that there is more to frame size than just frame size; that it is also frame size in relation to top tube length?
RP