CNC Machined from aircraft grade 7075 T6 Anodised aluminium. Ramped and pinned for high performance
These chainrings are for 130BCD and are stiff, lightweight and durable.
For Shimano 130BCD 6700 and 7900 series please use the OCP3 Outer Qrings from the other section.
These "open" chainrings have been produced in very limited quantities