**PLEASE NOTE: ALL VORTEX CLUTCHES DO NOT INCLUDE SPROCKETS. THE DESIRED TOOTH COUNT SMC SPROCKET MUST BE PURCHASED SEPARATELY**
Air gaps, spring heights, pressure plates and needle roller bearings were state-of-the-art in 1978. If you are satisfied with second place, there are plenty of manufacturers still making copies of that obsolete design. But this is 2016. Technology has come a long way in the last 38 years and if you want to win today, you will need state-of-the-art equipment.
SMC produces the most highly engineered clutches on the market. Each piece of the Vortex clutch was designed on a CAD system, optimized with engineering analysis software, tested on dynamometers, re-tested on the race track and precisely machined with modern CNC machine tools. The results are easier adjustments, more races between rebuilds and faster acceleration.