Cannondale Hollowgram SI SL Crank 50/34T Spider Ring 172.5mm | eBay
Cannondale Spidering removal and replacement - YouTube
Leonardi Factory / GECKO CAPO spider less 28 tooth round chain ring to fit Cannondale FSI Hollowgram cranks. 2mm offset 10/11/12 chain and Eagle Compatible
Direct Mount for Cannondale Hollowgram – CX and road offset
Cannondale Hollowgram Si spider ring crank, Sports Equipment, Bicycles & Parts, Bicycles on Carousell