I’m hereby selling my old Cannondale Hollowgram SI Crank arms which measure 170mm in length. Each of the crank arms weighs 170 grams. Both weigh 340gr together. They were taken off of a 2020 Cannondale SuperSix Evo Hi Mod. They are used, with minor scratches/scuffs from use but no technical defects. They also come with an original Cannondale box for each of the crank arms.