so this week i striped out my crank arms on a ride. and now i need to replace them. i am looking at these and want to know if they will work for mountain biking. Universal Cycles -- Dimension Cyclocross Crankarms currently i run a 1x9 speed with a 36t ring in the middle position and a bbg bashguard in the outer position. would a cyclecross crank be adequate for running over the river and through the woods.