Originally Posted by
FBinNY
You're going about this backwards. First find the cranks you like in the length you like, and then buy the rings to fit it.
A few cranks are made with the chainring arms separate and interchangeable, but the majority are made in one piece with the chainring and crank arm either of a single piece of metal, or permanently attached.
As I said, 110 rings are probably the most common these days, so if you find a crank you like and if you then have an option about the BCD, then opt for 110. But don't let that limit your choices of cranks, which is the more important decision, especially if you need special lengths,
Thanks for the advice. I shall look at the crank carefully then.
Originally Posted by
ThermionicScott
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?
Thanks and noted.
My planned gearing is 26 to 85 gear inches. This is alright for the commuting purpose.