Originally Posted by
xg43x
Shimano 105 road cranks look better and cost like 25 bucks. Depending on the rings youll get a nice 42t chainring too.
What's wrong with the cranks you have? Is it just that they're a double? Because you can just get some shorter spider bolts and lose the inside ring, no problem.
Don't just guess at the chainline. You need to find the centerline of the frame at the bottom bracket and at the dropouts, then extrapolate from that how far out to the right the chainline will be. This will determine what bottom bracket you need. A sealed bottom bracket cartridge is around $20. You want this to be right- it's silly to spend money on nice parts when the set up is the limiting factor on the smoothness of your drivetrain.