Vortex red comes with a 12 tab disk, roller levers, and a ball bearing drive system......
Vortex black comes with a 8 tab disk, roller levers, and a conventional drive system that is compatible with smc/bully style small diameter drivers......
Both are great clutches, and I would make my choice based on, how many bully style drivers you have. If you have a ton of bully drivers, purchase the black. If just starting out and you only have a couple, invest in the red. The difference in the clutch performance is debatable, but the red drive system is superior in every way.
Fast Forward Clutches can help you with either one, just give us a call or text.
James Raines
601.498.8471