The Continental Grand Prix 4000 yellow tyre works on every road surface, transforming the demands of different styles of riding and supplies extremely long-term performance. It also achieves expectations in precision and production quality. The new reference standard for racing tyres. This yellow version comes in either lemon yellow as pictured or Conti Yellow (which is quite orange really)

Puncture resistance
The Vectran breaker belt, developed and patented by Continental, surpasses even the famous puncture resistance of the former leader in this category, the GP3000. The extremely strong Vectran fabrics are more flexible and lighter than all other puncture protection materials. Vectran offers more resistance to cuts than Aramid, is five times as strong as steel and features less weight than a nylon double breaker. It also maintains strength in the wet.

The new compound used called Activated Silica Compound (ASC) increases the handling threshold for even safer yet faster cornering and reduces the rolling resistance of the Grand Prix 4000. A new anti-cracking formula prevents UV light from damaging the compound and increases the mileage performance.

A new feature is the tread wear indicators to help riders gauge the life of their GP4000 tyre. On the one hand you don't lose mileage performance by prematurely replacing the tyre and on the other you don't risk safety by using the tyre beyond its tread service life so you know just when to reorder from Cycling Bargains.