• Adapter for SBC with 1.243" register and 1.245" length

• CNC machined from 6061-T6 aluminum, lightened with lightening pockets, and anodized black

• R-LOK crank system allows for an endless amount of crank pulleys to be stacked and locked together providing a more positive and lightweight drive than a conventional mandrel system

• R-LOK system is more concentric and truer than the conventional pin-drive systems