Righetti Floating Brake Rotor Hubs. Ideal for modern Righetti Ridolfi go karts such as Righetti Extreme, Gold Kart, or Solo Kart.

• The light-weight aluminum design allows brake rotor to 'float' for less rolling resistance, and less binding of brake system during operation.

• Dual M6 cinch bolts prevents lateral slip of hub on axle during operations. Hub milled for 8mm Keyway.

• Available in multiple configurations:

• 40mm: Ideal for 40mm axle setups. Milled for an 8mm keyway. Hub width is 65mm (laterally). Net weight is 430 gram.

• 50mm: Ideal for 50mm axle setups. Milled for an 8mm keyway. Hub width is 65mm, weight is 390 gram.

• Each hub sold separately.