Based on the award-winning iPro and MAZ4S, the new PRO-R1 is an exciting addition to the Maxxis range of high performance tyres. It is designed to deliver enhanced wet and dry performance, better fuel economy and longer life as well as a quiet ride. A reinforced steel belt and jointless spiral-wrapped nylon cap provide greater high speed stability, better handling and increased tyre life, while the high tension ply cord also boosts stability and the slimline bead filler makes for a controlled ride. Maxxis's newly developed 'Ultra R' rubber and nano dispersed SiO2 combine to produce a highly reinforced silica tread compound which delivers excellent wet grip and the addition of other special chemicals improves both rolling resistance and fuel consumption. Thanks to the multi-pitch block design, which incorporates a raised centre section, pattern vibration and frequency are reduced, resulting in low noise and improved handling and performance. The jointless spiral-wound bead wire gives added strength and reliability and the high hardness sidewall compound reinforces rigidity to aid handling performance. The Pro-R1 is available in an impressive range of sizes from 195/50 R15 to 245/35 ZR19 covering the most popular sizes of 15-19 inch wheels.