I bought Milwaukee orange frame and all of the components to build up my first fixed gear. I'm just now getting around to the build after having the wheels finally ready. When I bought the frame, I had Ben's Cycles install a sugino superlap 109 mm bottom bracket. I also bought the sugino 75 gold crankset. when I put the crankset on the bottom bracket, the chainring rubs against the chainstay. Am I doing something wrong in installing? This is my first build so that's certainly possible. I'm not able to download pics to illustrate but if anyone wants to see, send a pm. Thanks for any advice.