How to remove a Cannondale Hollowgram crank arm
Removing Hollowgram arms of all generations (as of model year 2017) are removed with the KT013 crank puller. Remove the crank bolt with a 10mm hex wrench. Thread the smaller inner piece into the bottom bracket spindle threads using an 8mm hex wrench. Thread the outer piece into the crankarm threads until it is tight. […]