[roboticservo]

I'm almost finished ordering all the goodies for my 1999 specialized FSR elite build but i ran across a small problem... What size derailleur do I need to get?
Is it the 31.8mm clamp or the 35.0mm clamp?
Should i get the low clamp or high clamp version? I'm running 3 gears on the crank and 9 on the cassette.

thank you guys for all the help!!!!

- matt