With Cannondale's release of the new OPI SpideRing, System Integration takes one step further. The OPI SpideRing is CNC machined from a single block of aluminum, and combines spider/chainrings/bolts into a single work of art. This combination reduces weight to a mere 157g for a compact unit and 175g standard wile improving stiffness that improves shifting performance, elevate the Hollowgram SiSl2 crankset into the ultimate crankset to have!
Compatible with virtually all Hollowgram cranksets, and installs the same way using the same lockrings (KP021) and lockring tool (KT012) Cannondale has always used.
SpideRing is 10 and 11 speed compatible.
Available in 34/50, 39/53 and now 36/52 configurations.