Michelin Pro Optimum Front Folding Tyre offer superior grip and comfort for long-distance trips The MICHELIN Pro Optimum front/rear set boasts superior grip and comfort. Front and rear tread patterns have been redesigned to absorb surface irregularities, while the 25-mm width considerably increases rider comfort. Michelin has developed separate front and rear tyres to take into account their specific requirements: - The MICHELIN Pro Optimum Front and Rear tyres utilize different rubber compounds in line with their roles. - The front tyre carries 30% of the weight load and absorbs 100% of the braking effect. For this reason, Michelin engineers made it a priority to develop a tyre with matchless grip*, capable of providing maximum safety to users on cold, wet or otherwise difficult surfaces. - The rear tyre carries 70% of the weight load and absorbs 100% of the torque generated by the bike's forward motion, which affects both its efficiency and wearlife. In order to achieve consistent performance, the rear tyre now has a longer life, meaning that MICHELIN Pro Optimum Front and Rear tyres now have comparable lifespans. * The MICHELIN Pro Optimum Front tyre offers the same degree of grip as the Pro3 Grip, the tyre preferred by cyclists for maximum safety on wet, cold and difficult courses. - Weight: 215g (front), 240g (rear)