Puncture Force Sharp Needle: Pre-2021, this score was known as 'Puncture Resistance'. This value will give the best indication of real-life puncture resistance.

Total Puncture Score: This score consists of Puncture Force Sharp Needle, Puncture Force Blunt Needle, and Total Tire Thickness. NOTE: As of 2021, we've improved the puncture resistance tests and now provide 'Total Puncture Score' as the main puncture resistance indicator. Puncture Resistance Test Results Puncture Resistance Test Results (higher is better) Test Results Size, Weight, and Thickness Measurements Page to read in detail about how we test bicycle tires.ĭon't forget to take a look at the overview pages to make it easier to compare all bicycle tires that have been tested: We performed all our tests on a new sample, which gives us an excellent opportunity to see if anything has changed over the past 7 years.Īll rolling resistance tests are performed on our rolling resistance test machine. We already tested the Grand Prix 4 Season back in 2015, but since we added our wet grip test only recently, we found wet grip test data can't be missing for the Grand Prix 4 Season as it's one of the most popular winter tires. A double layer (single layer on Grand Prix 5000) of Vectran anti-puncture material under the tread pushes the puncture resistance of the tread beyond what we see with typical all-round road bike tires. Just like the Grand Prix 5000, the Grand Prix 4 Season comes with the well-known Continental 3/330 casing that, unlike the Grand Prix 5000, has been reinforced with a layer of DuraSkin that runs from bead to bead.

The Grand Prix 4 Season is closely related to the Continental Grand Prix 5000 ( read our review) but comes with additional layers of reinforcement and a compound more optimized towards grip in wet and cold conditions. The Grand Prix 4 Season is Continental's top-of-the-range all-season tire made to be a year-round companion for training and (light) competition use.

Grand prix 4