Originally Posted by
Carbonfiberboy
Oh c'mon folks. This is interesting to me. Something's going on here.
OP, I'm curious about how you got this bike. It's obviously an older bike and you're a big guy. It's not easy to find a just-right used bike. Or have you had this bike since you were a kid? Anyway, the fit you've come up with might very well be the best that can be done on that bike. I'm curious to know if this is the case, so . . .
Try this:
Go to an online bike fit website, this one:
https://www.competitivecyclist.com/S...ulatorBike.jsp
Specify that you want a road bike fit in inches.
Put in all your dimensions. You may need to have someone help you get the measurements. Choose the competitive fit.
You'll get a long series of measurement for your prospective bike. You're really only interested in top tube length, which is really effective top tube length as many bikes now have sloping top tubes.. Everything else can be modified.
Compare that top tube length result to the length of the top tube on the bike you have. That length is measured along the center of the top tube, between the centers of the seat tube and head tube.
How does it compare? Report back.
I found the bike used on classifieds. It was in poor condition and I wanted to learn how to restore a bike. I developed a good connection with it. Ive had the bike for 3 months so far and have put about 1500km on it. I mainly bought it because it was already converted to flat bar meaning it had the brake levers I wanted.
The standover clearance is literally - my inseam 885mm, so maybe slightly on the large size, but not overly so. I believe that the top tube length and reach measurements are more or less in line with what I would require.
I tried using the frame fit calculator, but obviously my measurements must've been quite inaccurate. It says my top tube length should be around 55cm.. thats just not right..
the top tube on my Norco is around 58cm. I imagine around 59cm would be the correct size, but no more, considering that I've tried using a tall rise 60mm stem on this bike previously which was comfortable, but didn't work as well as I wanted. My current setup using a 40mm stem with the 58cm top tube is perfect for me.