2018 Kawasaki H2 SX SE First Ride Review

A planetary gear train running off the crankshaft gets this intricately machined 69mm impeller puppy whirring along at 9.2 x crank speed – reaching maximum speeds of nearly 130,000 rpm. Six blades at the tip expand to 12 at the base. If you want one for your mantel, Bike Bandit will sell you the entire Compressor Assembly part #15060-0005, for $3,292.95 (2017 H2).