Hi, I bought a 2010 Jamis Ventura Comp on Wednesday. I know that the front shifter is 3 speed... the problem is the crank is just 2x. I would like to know if the front derailleur is also 3 speed. Will I be able to find a shifter/brighter that matches, but is only 2x. Or should I upgrade the crank to 3x. Any opinions, please?