double, compact, triple?
09-26-12 | 01:57 PM
#51
pan y agua
Joined: Aug 2005
Posts: 31,812
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From: Jacksonville
Bikes: Willier Zero 7; Merlin Extralight; Calfee Dragonfly tandem, Calfee Adventure tandem; Cervelo P2; Motebecane Ti Fly 29er; Motebecanne Phantom Cross; Schwinn Paramount Track bike
That's because you're looking at it from the consumer side, and not the supply side. For a supplier, the "mid-compact" allows him to sell a compact, something close to a standard double and he only has to deal with a single 110BCD crank spider.
None of this helps the consumer, but part rationalization like this is very common.
None of this helps the consumer, but part rationalization like this is very common.
There's a big advantage to the consumer to have a single 110BCD spider; it allows you the option to run anything from 46/36, 50/34, 52/36, 53/39. to 56/42 all on one crankset.
Thus you can change to the gearing you want for different terrain just by swapping chainrings, and not having to have 2 cranks.
And with stiffer chainrings you don't need a 130bcd to run bigger chainrings. This is one of the cool things with Shimano's new 9000 group; they just have one crank, not a compact or a standard, that you can spec as you want.
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You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.
09-26-12 | 01:59 PM
#52
even better to have 94 bcd.
you can run anywhere from 30/46 30/48 32/48 34/50 to 'normal'.
you can run anywhere from 30/46 30/48 32/48 34/50 to 'normal'.
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So long. Been nice knowing you BF.... to all the friends I've made here and in real life... its been great. But this place needs an enema.
So long. Been nice knowing you BF.... to all the friends I've made here and in real life... its been great. But this place needs an enema.
