I have an '04 REDLINE Monocog, with 135mm BMX fork spacing, and I need a new bottom bracket. I don't know what the bottom bracket it comes with is, and the guys at my LBS aren't very helpful. I want to buy and install a new one, but I'm told I need a 136mm BB. I am looking to get a Sugino or Shimano 105, maybe a Dura Ace. The bike is stinking heavy, and I want to shed some pounds. Any suggestions on what brand and make, and where to find the best deal? I'll be upgrading the crankset as well.