Lacoppia of MAVIC wheels Ksyrium Disc UST for copertonie drives6 holes in a light weight, powerful and safe with a good ratio quality/price. ideal for cycle touring and cycling sports. The technology tubeless UST (installation without room daria) improves traction, comfort and control with a great lightness. The rims ISM in aluminum Maxtal reduce the weight of the wheels to allow climbs and fast acceleration immediate. The internal width greater than 2 mm (19 mm) ensures a lower rolling resistance, greater comfort and a better protection against punctures. The specific system for disk brakes, compatible with different axes, and d the rigidity of the lateral be sufficient for an accurate guide. The free wheel Instant Drive 360 ensures a clutch quick with the points of engagement of every 9.