Pros: Aero/fast/cuts the wind over 14 mph
Cons: subject to some stiff cross winds...hold on tight.
Lance uses these on the front of the TT bike. I have the same 2002 USPS Frameset with the H3's. One this bike, there are like knife blades slicing into straight-on head winds. Yet, when a stiff cross wind, or a large van, SUV, or truck pass you in the same direction, you need to be prepared to have the front of the bike dive into the negative pressure created by the vehicle. Just have to grip extra tight for a few seconds until the pressure comes back up.
I have the Rolf Vector Pros and the H3's. On the same day, within 10 minutes of each, I let gravity pull me down a 1/2 mile hill on each set of wheels. Here are the results:
TT Bike with Vector Pros...27 MPH MAX (coasting only)
TT Bike with HED H3's......33 MPH MAX (coasting only)
As you can see, they are unreal! Worth the bux! $900.00 range for the pair.
Posted by Joe Rafferty