This vintage Schwinn speedometer is a great addition to any classic bicycle. The hub drive and 27" / 28" (bolt-on axle) wheel size make it a perfect fit for vintage cycling enthusiasts. The brand, Schwinn Approved / Huret / Transval, and the model number, 4478, indicate high quality and durability. This speedometer is a great way to add authenticity to your vintage bike, and will surely impress your fellow cyclists.