Ultimate up-front experience for a young mini mountain biker Fast quick release fitting and custom 19mm pro grips Quick release – 15 seconds to fit, remove and swap between bikes Fits 31.8 and 35mm handlebar diameters, and stems up to 60mm wide – with full rubber handlebar protection Suitable for flat or riser handlebars 355mm extrawide bars and custom 19mm undersized grips for maximum comfort and stability