Pirelli Scorpion E-MTB R 27.5X2.60 "tire The Scorpion ™ E-MTB range is the evolution of mountain bike tires: new standards in durability, puncture protection and battery saving. All this has been possible by working on the new patented HyperWALL ™ structure and the new SmartGRIP + Compound compound. Scorpion ™ E-MTB sets new standards for electric mountain bikes. A tread pattern with medium profile and spacing, specific for rear use to ensure traction and stability on a variety of different terrains, from hard to soft. The tread of the Scorpion ™ E-MTB R is developed for use on the same terrains as the Scorpion ™ E-MTB M, with medium height and spacing blocks and a wide range of use. design of the central blocks, derived from Pirelli's experience in the motocross world, increases grip and stability both under braking and in traction to give Scorpion ™ E-MTB R unique dynamic and reliability characteristics. n ™ E-MTB R creates a perfect combo when paired with Scorpion ™ E-MTB M on the inside.