The Spider Brake Rotor Adaptor in striking gold is a CNC-machined aluminum component crafted specifically for floating (spoke mount) rotors on Arlen Ness cartridge wheel hubs. Its cutout design echoes the dynamic contours of Ness hubs while slashing weight. Paired with a 320 mm spoke-mount rotor, it delivers a lightweight, high-performance braking system. It fits standard 5-bolt HD wheels with a 3.25" bolt circle and lets you use factory 320 mm floating rotors on custom wheels. Made exclusively for Arlen Ness cartridge hub wheels, this adaptor combines bold style with precision engineering.

• For stock rim application only.