Compact vs. Triple

[Triskeliongirl]

Indeed I am running a 9spd setup, ultegra short reach brifters, custom 50/34 crank set (for my LLD), and an XT rear derailleur and 11/34 casette (and ultegra brakes and durace chain).

I noticed terry is specing Isis sport with an IRD 10 spd 11/34 in back paired with a shimano deore LG SGS, so it seems like 10 speed is possible: http://www.terrybicycles.com/cycling...isissport.html

I also contemplated putting an 11/32 on with my ultegra triple long cage rear derailleur. I ran the numbers by on sheldon's site, and it looked like it would just work (although barely, and only with the long cage triple not double rear der). But, I decided to switch out the rear derailleur to get the 34 since I had already bought the mountain derailleur and 11/34 cassette.

In my case another reason to go with a double stemmed from my need for a custom crank set to deal with my LLD, and the fellow making it really pushed me to go with the compact double. But I am very happy with it.