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.

1. Remove the crank bolt with a 10mm hex wrench.
2. Thread the smaller inner piece into the bottom bracket spindle threads using an 8mm hex wrench.
3. Thread the outer piece into the crankarm threads until it is tight.
4. Use the 8mm wrench to back out the inner piece in the spindle. This will pull the arm off the spindle.
5. Remove the threaded piece from the arm.
6. These tools are only needed to remove arms and are not used to install an arm on the a spindle.