We have in stock High Torque lower speed 4065 series and Higher Speed Lower Torque 4080 series. Both models are for rear wheel only AS we highly recommend REAR setups because these motors have very high torque and render most front fork set ups vulnerable to BREAKAGE. (We also believe that rear setups are far superior to front set-ups) Front motors  are available on special order.

Crystalyte 40 Series Choices