* Vibrocore㢠is a proprietary, biodegradeable, complex foam core of precisely controlled density.* Injected into Spank Industries handlebars, it reduces the harmful vibrations which can lead to hand-arm numbness and fatigue, as well as arm pump, while also increasing overall bar stiffness and fatigue life.* Dual XGT* CNC Bending* Zirconium Doped 7-Series Alloy* Shotpeen anodized* MGR