Originally Posted by
canyoneagle
Finally, as it has been mentioned, there might be some gremlins in the works if you can't lock up your discs, even with the 160's.
This. Either the brakes aren't set up/adjusted properly,or you need to work on your braking technique. It's pretty common in the motorcycling world for people not to use the front brakes as hard as they could for fear of locking the wheel or going over the bars. I have two bikes with BB7's and drop bars,I can lock up the front on either with two fingers.