Originally Posted by
Shahmatt
I'm not confused but perhaps my original post was not clear.
Basically the same crankset comes in a variety of BCDs. I just need to pick the BCD that matches my crank arms. But I don't have crank arms so I need to buy that as well.
Now I also want to try out a shorter crank arm length. I found a 155mm length model that comes in the 110mm BCD - this would go with the 110mm BCD crankset.
But what if I don't like the 155mm length? Let's say I want to try 160mm. Would I be able to find 160mm crank arms in the 110mm BCD
So my question is really, in which BCD would I find the widest variety of crank arms available.
Hope that makes things clear.
That's better, but I think what you "need" to do still needs work.
Cranksets generally come with chainrings, and are often cheaper that way! So you don't need to be married to a particular BCD. Start your search with cranks in the length you want, 155 and 160mm. That will narrow things down quickly. What is your current gearing, and do you want to maintain it?