Terrain and weather are further considerations. In dry conditions, the best grip with road bike tyres may be offered by tyres which have a very light tread and offer a happy combination of low bicycle rolling resistance and a good grip. Tyres such as the new MICHELIN racing tyres are an excellent example. However, wet weather is all too common, and here you may want to consider the MICHELIN Power All Season tyre, which offers more grip as well as superb puncture resistance.
If you ride off-road, you'll meet even more grip challenges. The central issue for performance here is not bicycle rolling resistance but rather cornering security on rough or muddy ground, and in all kinds of weather.
For example, the best mountain bike tyre combination has a much thicker tread and more surface contact than road bikes. These tyres also need to withstand sharp rocks and other hazards, so the best mountain bike tyres should have puncture resistant qualities to keep you up and rolling.
Serious tyre manufacturers like MICHELIN use a range of testing procedures to optimise performance. At MICHELIN's test centre in Clermont-Ferrand, for example, riders complete laps of a large circuit at a constant power output and in various simulated weather conditions. Tests like these have indicated significant pace improvements with MICHELIN's new Power range over their previous one.