On a hard-ridden loop with a fast descent and sweeping turns, the Goodyear Eagle F1 RS Clincher Tire carries speed from one corner to the next. The UUHP compound uses high-surface-area silica to grip in wet and dry conditions, and a reinforced shoulder smooths the handoff from the center of the tread to the sidewall as the bike leans. This tube-type road bike tire also removes the casing overlap from the main contact patch, so the tread deforms more efficiently and wastes less energy. What Our Gearhead(R) Experts Are Saying:"I rode these through a season of broken pavement and loose shoulder grit without fixing a single flat, which I credit to the R:Shield belt under the tread. The tire stayed supple instead of stiff, so rough chip seal never turned the ride harsh."