For high-speed performance on hard-packed gravel, a slick center tread reduces rolling resistance, while the shoulder pattern is tuned to transition smoothly to provide consistent grip in cornering and descending. Each design element is developed to meet the demands of racing.

SKUs
RF740-GKZX-B2 (700x40c Black)
RF740-GKZX-D2 (700x40c (Brown)
RF745-GKZX-B2 (700×45c Black) 560g
RF745-GKZX-D2 (700×45c Brown) 560g     
RF750-GKZX-B2 (700×50c Black) 640g
RF750-GKZX-D2 (700×50c Brown) 640g