How does continental Grand Prix 4 season feel?
How does continental Grand Prix 4 season feel?
The 28mm 4-Season feels quite similar to a 25mm Grand Prix 4000s, albeit a bit slower. The soft rubber grips well and was particularly impressive on wet surfaces. The advantage conferred by the slightly deeper grooves may be mostly mental, but the tires did feel secure when taken onto gravel roads.
How much does a continental Grand Prix 28mm tire weigh?
It allows for lower tire pressure and encourages a bit of dirt road adventuring. Our test set of 28mm 4-Seasons came in at 281 and 282 grams per tire, an acceptable figure given the impressive flat protection. The 28mm Gatorskin weighs a claimed 360 grams.
How much does a 700 x 25C 4 season weigh?
Weight. While the specified weight of the 700 x 25C 4 Season is 240 grams, the tire used for this test weighed in at a very low 215 grams. 215 grams is even less than the specified weight of the GP4000S II. Size. Measured width and height on a 17C rim is 27 mm and 24 mm respectively.
What is the rolling resistance of a gp4000?
Dropping air pressure to 100 psi / 6.9 bars results in a rolling resistance of 18.2 watts (GP4000S = 12.9 watts). At a comfortable air pressure of 80 psi / 5.5 bars, rolling resistance is 19.8 watts (GP4000S II = 13.7 watts).
https://www.youtube.com/watch?v=kOs62wJdFrM
What kind of compound does Continental 4 season use?
Most Continental high-end tires use the Black Chili compound which always performs excellent in the rolling resistance tests. The 4 Season doesn’t use the Black Chili compound but instead uses a different “Max Grip” compound.
What kind of Breaker does Continental 4 season tire use?
To make the 4 Season an all-season tire, Continental designed this tire with a double layer of Vectran breaker under the tread, an extra layer of DuraSkin from bead to bead, and a silica compound optimized for cold and wet weather.