The ISO Disc rear hub combines a well though-out and proven design with parts that are machined to surgical precision. The hub will perform to task in the worst conditions for long periods of time. Service and cleaning procedures are downright simple due to the design structure and modular nature of the mechanical system.

Do you know what RingDrive is? Most riders are familiar with the unique sound or buzz that King rear hubs emit when freewheeling. This is due to the 72 point ratchet system tucked away inside the freehub body. 72 points translate to virtually instant engagement, which is ideal (and practical) for off-road riding when the synergy of foot/pedal position for leverage and same-time engagement are paramount. There is no slop or play in the freehub, simply pedal forward and any point in time and the hub instantly applies tension to the drivetrain.

King manufactures their own super round steel bearings. The axle can be removed and replaced or upgraded to another axle type or size in a matter of minutes. The ISO Disc 6-bolt pattern will fit all standard rotors regardless of their diameter. This is clearly one of the best choices for an off-road hub you can purchase. Incredibly well made, with smooth, precision action, and extreme strength for long term durability. It doesn't matter if you are running 10/135mm with a QR, or 12/142mm with a thru-axle, or SRAM's XD Driver, there are options and conversion flexibility for you.