Our lightest system yet for increased acceleration and a cooler running motor. Extra light slipper eliminator spur gear mounting hub for all B6 series, 22 series and RB6 series buggies and trucks. This spur hub is designed for use on Exotek 2017 'Flite' top shafts #1721, 1723, 1725 sold separately. In the world of ultra competitive stock racing at indoor tracks, every grams counts and there is no better way to separate yourself from the pack than having a more efficient and lighter drive train. Less than half the weight of the stock top shaft and slipper and lighter still than our standard spur mount set, when combined with our special lightened top shafts. Choice of polished 7075 blue, black or orange. Includes M3x6 hardware for use with Exotek spur gears. For Kimbrough spurs use M3x5 screws (not included) or M3x6 screws with 1mm thick washers. $14.95 MSRP.