Originally Posted by
The Smokester
You may need to consider an mtb rear derailleur if you are going to a wide range of gearing.
If the cassette is a 12-26, with a 22-32-44 the range would be 23" to 99". Myself I'd get a TA Carmina with a 94x58 BCD and 46-34-20 rings, this would give you 21" to 104" with nice close ratios