I just upgraded my front bb5 caliper and rotor to a bb7. My lbs installed it because I don't have all the proper tools. Anyway, it seems to me that the bb5 stopped much better. I barely had to squeeze the handle and the bike stopped on a dime. Now, there is a noticeable fade and I've got to really grip the brake handle for it to come to a stop. The rear brake is still a bb5 and when I use it, no fade. Immediate stop. I've taken it back to lbs and they adjusted it. It's somewhat better, but not much. I upgraded because the front bb5 was giving me so many problems with noise, I couldn't take it anymore. Could it be that the new pads and rotors just need time to break in?

i would suspect grease, oil or brake fluid on the pads. it may not be detectable by the naked eye.

Hmmm. I'll check it out. I'm hoping that's what it is. I'm so disappointed that the braking is worse. I was expecting to just have the caliper bolt on and all is well. Thanks for reply.

Disc brakes do require a break in period while the pads bed in. Avid even has a recommended bed in procedure (basically twenty or so hard stops in a row)

And all that is needed to install a BB7 brake is a 5mm Allen wrench. Add a t25 Torx if you are installing a rotor (but those used to be included with the brakes)

When you break in the brakes, the pads leave a thin residue on the disc. It is advised (avid, shimano, etc) that you do not come to a complete stop. So, take it easy.

I appreciate the replies guys. As far as not having the tools, I don't have a t25 torx nor do I have cable cutters, which I assumed I needed. I'll give it a few rides and see what happens.