Originally Posted by
Road Fan
Wattsup, I agree with you. If you need or want to try more setback than you can get with a straight seatpost, there is no reason not to try a seatpost with some setback, even up to 35 mm (like the Nitto S-84).
Wanting to try more setback does not mean you need a new frame.
Remember that if you add a lot of setback, you should think about whether the small increase in leg reach means you should lower the saddle. If you're a math guy, you can work out the trigonometry and calculate how much lower the saddle should be to keep the same leg extension..
Well, I actually think the saddle has to go higher, together with the increased setback. I had it a little low I think. Here's the thing though. Using a plum line, I estimate that a 25mm setback post, together with the post adjustment, will JUST about bring my knee back to KOPS. That's with the saddle slammed back as far as it will go, (except for a 1/4" buffer to avoid bending the rail.) I'm just barely 6ft tall, riding a 57cm frame, a Salsa Vaya. I never thought of myself as having long femurs. I'm also not showing a heck of a lot of seatpost either. I can't understand how a 57 frame could be small for me.
Could the reach be a factor as Kedosto suggested a few posts earlier? In other words, if I were to be leaning further forward (longer stem,) would the tilting of my hips forward change my knee position in relation to the pedal?