Originally Posted by
juggleaddict
2 questions:
1.) what benefit would you get out of running a double crank (price? simplicity? weight?) and is that a reasonable benefit(s)
2.) why would they make triple cranks if there was no reason to run them instead of a double?
Question 1 is what I`ve been torturing my mind with lately. Obviously, you CAN do it with a double, but why? Why NOT a triple?
2 is heading towards being a moot point because the number of triples available seem to be shrinking rapidly since about two years ago. No, not in danger of extinction, but definitely no longer in fashion, even on mtbs, where they ruled the roost for years.
My 11-28 8 speed is pretty much an 11-36 10 speed without the biggest two sprockets, isn`t it? Is the combined weight of those 32t and 36t sprockets a lot lighter than the 24t ring and extra five ring bolts I have on my crank? Is the 2 X 10 drivetrain less expensive than 3 X 7,8,9? Will it last a lot longer than 7, 8 or 9? If any of those are "yes", then I guess there`s the answer.