After training and riding all winter with heavy/slow Armadillo's... I switched to GP5000's and instantly set PB's on just about every route I ride. Some areas were close to 2mph faster... and the grip is better, the ride is smoother - tires feel more supple. Better than the other bontrasher and Specialized Turbo's that I ran the previous years.

So far, no flats after about 1200 miles.