Hi

I am installing a mountain bike crankset on a road bike (Cannondale T2000). I understand that the chainline is 45mm and that most mountain bike cranksets are 50mm. I will probably buy a Shimano m-590 crankset and BB. The 590 BB has enough spacers to move inboard or outboard 5mm but I am not sure if their starting point is 50mm, or if offsetting it enough to give me a 45mm chainline will cause other problems. Put another way, will i be able to make this crankset and BB work OK or do I need to buy a different BB and crankset with a shorter (113mm) spline?