Bikers Versus the Undead (circa 1986)
Via Joel Samuel, who explains:
"The late James R Buick and his wife Sheila and Joel Produced this campy video feature that never saw the light of day until now. Zombies come alive and evil forces are subdued in Phoenix by bikers and metal heads."
We know what you're thinking, but if you pulled the security tape at the local 7-11 and saw this on it, you'd frickin' flip out, man.