I am looking for a new crankset for my downhill bike for next year. I am considering the Diabolous, the Saints, and the 2006 Truvativ Holzfellers and Howitzer BB. I would like 175mm cranks which means I would have to use the double ring model (which is slightly heavier, and the granny ring tabs might interfere with my chainguide) because the single ring model only comes in 165 and 170mm lengths. Which cranks should I go with? (I am also open to other suggestions).