D.
I have the TRP Euro's on both my PXs. My pit bike gets all of the road work, and these brakes are more than adequate for roads around here. Plus the magnesium version just looks cool on a Moots (although completely frivolous). Just don't ever try to stop on a dime, and you will be fine.
These brakes are also great for the cx racing scene in PA, NJ, and DE. The only trouble I have ever had is in a race on a snowy course, and quite frankly I don't think any brake other than a disc brake would have made a difference. Besides, in a cx race brakes just slow you down as Scott always says...
