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Introduced in 2016, these lightweight, FEA-optimized, solid forged crankarms bring Cannondale System Integrated performance to more pricepoints than ever before. Lighter than Ultegra or Force Carbon cranks, they share more than just a family resemblance with the HollowGram cranks. They share the same interchangeable spider interface and are fully BB30 and BB30A compatible. The Cannondale Si crankset represents a fantastic upgrade for any BB30 equipped bike.
- cannondale.com
- cannondale.com
Wait a minute are you saying it is possible to put spiderrings on the cheap si cranks that 105 caad12 has?
I was under the impression the 110 5 arm spider is part of the cranks