Hellfury
The Hellfury is a chopper style motorcycle found only in GTA IV.
It is based on a West Coast Choppers El Diablo series bike and is the vehicle of choice for The Angels of Death. The bike features a flame-based rim design and seems to handle very similarly to the Freeway.
In the mission Ruff Rider, Jayvon Simson attempts to escape from Niko by jumping on a red Hellfury and leading him on a wild high-speed chase through Algonquin.