Improved ride quality 17 mm internal rim width increases air volume whilst large volume griplink and powerlink tyres increase comfort rolling efficiency and grip zicral spokes and fore drilling improves lateral stiffness low weight ism 4d rim machining and super light zicral spokes with fore drilling make for a low weight without sacrificing any stiffness sustainable durability fore drilling makes for a secured spoke rim interface helping the zicral spokes to keep the wheel responsive w