how coke i cant always feel crank legth difference?

[unijesse]

i ride a torker w/ 127mm cranks and i tryed a dx w/ 140 mm cranks and i couldnt feel the difference, then i rode a koxx-one w/ 140s and i felt like i was gonna swallow my knees they were so long. and i rode a ooooold kh(orange) and i cant feel the difference(dont know what length) and my sun is the same as the k-1.

my conclusion is that the q-factor on some long ones takes away some length but w/ no q, they are longer.

whats up with that?

[dan de man]

Im not sure what you mean (im not the sciency type guy)but a high q-factor does take some of the speed away

[trials_uni]

Maybe the torker dx had a higher seat...there fore you wouldnt have felt like the cranks were longer. And maybe the oxx one seat was low so it felt like it was alot longer cranks.

[Mikefule]

Small changes of crank length have a similar effect to changing gear on a bicycle. For general riding, any sort of middle-sized gear will do. Whatever you're used to feels "normal". Any small change soon feels "normal".

Very long cranks can be unwieldy. I find 170s hard work - especially if my seat is a bit low.

Very short cranks can be tricky in certain conditions. I can ride my 700c (28) on 89s easily enough, but I am very aware that 102s or 110s give better control on anyhting but a perfectly flat surface.

But in the in-betweeny sizes (125 ish to 150 ish) the differences are little more than preference and emphasis.

[Spudman]

Originally Posted by unijesse

i ride a torker w/ 127mm cranks and i tryed a dx w/ 140 mm cranks and i couldnt feel the difference

The DX doesn't come with 140mm cranks.

20" DX cranks = 5 in. (127mm)

24" DX cranks = 6 in. (152mm)