Motorcycle Explorer May 2016 Issue 11 | Page 160

tyres The bike comes preloaded with Pirelli MT 60 RS with an 18 inch front wheel and 17 inch rear. They are meaty looking things with a strong tread that does beg for a green lane or fire track to play on. I was more than happy with their performance on the tarmac and they gave ample confidence to lean in and out of the corners. The tyres have been specifically designed for the Scrambler and feature a chunkier tread with varying-sized tread elements, providing a multi- pitch design instead of the single-pitch of the original tyre. Pirelli says this results in a significant decrease in the land/sea ratio and a greater contact surface. The said benefits of these tweaks include a reduction in braking distance and greater stability both in the straight and when leaning in curves. Finally, thanks to the multi-pitch tread design, the noise generated by the tyre rolling on asphalt is significantly decreased compared to the original MT 60 RS. Upgrades to the tyre are completed by the use of new compounds; on the front a balanced silica/ carbon black compound derived directly from the Diablo Ross II has been used, and Pirelli says this provides a dynamic ride and a high level of grip on both wet and dry surfaces. On the rear, a high silica content sport touring compound has been used to ensure good mileage and a high level of grip in the wet. The MT 60 RS is now a radial carcass construction meaning that the patented technology enables the structure of both front and rear tyre to be achieved using a radial carcass and a single layer belt made of steel. Depending on the rolling direction of the tyre, the belt is wound circumferentially around the carcass giving an angle close to 0°. The advantages of the use of steel are its extremely high rigidity and the possibility to tune the winding spacing thus differentiating the stiffness distribution from shoulder to crown. Sounds simple enough right?