The Morsa G+ is a multi-condition Enduro and Downhill tire ready to meet the most demanding conditions. Vittoria MTB tires developed with Graphene demonstrate greatly increased knob strength, long-wearing durability and confidence-inspiring (wet) grip. Graphene (G+) is a very thin material (as thin as a single atom), and nearly transparent sheet of pure carbon. One gram covers over 2,500 square meters - and in the pure form (the only form that Vittoria uses) it is 200 times stronger than steel and 6 times more flexible. If the tire is rolling straight, the rubber is at its hardest and offers low rolling resistance. If the rider breaks, accelerates, or corners, the compound softens and offers more grip.