absoluteBLACK Oval SpideRing Cannondale Road Chainring Set, 50/34T

PLEASE NOTE: Compatible with Evo, Supersix, SystemSix, CAAD10/12/13, and Synapse 2017 and prior frame models. This item is NOT compatible with 2018-2021 Synapse frames as the inner chainring bolt head can contact the chainstay causing damage. The shape of the drive-side chainstay on 2018-2021 Synapse does not provide enough clearance for the bolt heads. - Premium 2X Cannondale compatible rings are designed for the Hollowgram crank family including SI, SISL, SISL2, sold as a set only. - Rings are machined separately, then connected together before directly mounting to the crank as one - Incredibly stiff and light with super fast shifting thanks to a patented shift ramp design - Oval rings help the rider spin smoother and generate more power and are optimized for each size separately - Works with 2x chainring systems and does not require any modification to the front derailleur for use - Designed in UK, manufactured in PolandToday's Stock StatusCurrently not available UPC: Not available