Park Tool HBH-3 Extendable Handlebar HolderPark Tool HBH 3 Extendable Handlebar Holder. The HBH 3 securely holds handlebars in place on any bike in any position while in a repair stand. Useful for brake bleeding cable and housing routing lever adjustment or any scenario where you want to prevent the handlebars from rotating including storage or working with the bike rotated upwards. With its articulating clamps and adjustable straps the HBH 3 can easily be attached in a wide variety of