Cannondale BB30 Spindle 119mm SuperX Ai KP450/The Cannondale BB30 Spindle 119mm SuperX Ai KP450/ is a replacement for Hollowgram SiSL2, Hollowgram Si, and Cannondale Si crank arms on 83mm Cannondale SuperX cyclocross frames. This version works with a 1x chainring configuration. Kit includes only the spindle, however the spacers are sold separately as part number KP483. Weights only 92g. Please call Cannondale for any compatibility questions.884603671146
