The Zestino Gredge 07RS series are a soft, grippy performance tire for serious track enthusiasts and race car drivers.

Center Straight Groove
Two wide center grooves ensure efficient channeling of water for improved traction in wet conditions. A rigid center rib provides a constant contact patch, allowing for improved traction and stability under acceleration.

Variable Wing Groove
Two variations of wing grooves are placed along the outer tread with different lengths and angle. The Longer groove assists in channeling and dispersing water out of the shoulder while allowing for improved cornering performance. The shorter groove provides directional stability.

Lightning Groove
The Lightning groove combined with the variable wing grooves allow for improved lateral traction for maximum side bite.

Side Dimple
Side dimples allow drivers to check the degree of wear and the effective contact patch area at a glance.