Pretty amazing that Continental can offer a sub-200 gram tire that is this durable and reliable. Front tires wear far slower than their rear counter parts, so less tread (weight) is required. Good opportunity to shave 20-40 grams of rotating mass off of your front tire. The slightly narrower 22mm profile greatly reduces drag and improves aerodynamics. When you think about it - the front tire is the very first thing on your bike that pierces the wind and tire width plays an important part when trying to decrease your frontal mass.
The Grand Prix Attack tire with Black Chili compound is specifically engineered to provide optimal performance as a front tire. The tread pattern of the tire was specifically designed for steering and braking forces as well as weight distribution that a front tire receives. The 22mm width compliments the tread design and is perfect for a front shoe.
The Black Chili compound allows the tire to mold to uneven road surfaces and provides longer tire life and lower rolling resistance with the aid of the small carbon particles incorporated into the tread. The GP Attack has a Vectran puncture protection strips inserted under the tread. It is essentially a protective belt made of super strong and extremely lightweight material. Small wear levels indicators have been molded into the tread to measure wear.
I alternate between to identical bikes for a 3000mile season. I make changes in inflation pressure and or tire combinations to one bike at a time. This way I have a baseline for comparison, and can get a good feel for the slight changes in ride characteristics. The Attack front tire gives sharper cornering response then a 23mm GP4000. But with that comes a bit more ride harshness. If youre on windy roads with smooth surfaces go with the Attack as a front tire. For longer distances go with a 23mm GP4000. It will be a more comfortable ride.Lastly, respect the max psi rating. Max means maximum. You dont live there, you visit. I weigh 185lbs and get great performance from the Attack and the GP4000 at 105psi. At 115-120psi the flats start to come on fast and furious with a Michelin A1 latex tube.
After 3500 miles on the front wheel and 1800 miles with an other attack mounted on the rear wheel : "Very good tire for the front wheel" I have mounted this tire on the rear wheel (curiosity) and here is my opinion : It seems that the 8.5 max pressure is to be fully respected. If you exceed his pressure the tire will be slippery, especially when you climb high percentage roads with some gravels. So I was obliged to inflate the rear tire at a max. of 8 bars during those situations. On flat roads no problem at 8.5bars (max.pressure recommended by Conti.) Also, at very hot summer temperatures, this front tire sticks too much to the road if you install it on the rear wheel and you will loose efficiency on flat roads. This sticky capability of the Conti Attack will be your best friend for the front wheel. This tire seems to be a must on the front wheel (for which it has been designed ! ) My choice is made : Front = Conti Attack and Rear = Vittoria CX 20c.