Bladed spokes add a touch of aerodynamics and a go fast look to any wheelset. If you are building up or trueing a set of wheels with bladed spokes, few things can be more frustrating than winding up a spoke. Park Tool's BSH-4 is a great little tool to add to your wheel tool arsenal that securely holds bladed spokes and prevents twisting. The tool features four different sized slots to fit a wide variety of bladed spokes from 0. 8 to 2mm wide. Keep the Bladed Spoke Holder - BSH-4 close to your truing stand and you'll quickly and easily service your bladed spoked wheels.