4 x 4 Wheel Stepdown Hub(1"step-down-to 3/4" Bore)

This is a single 4″ x 4″ go-kart axle hub with a 2-3/4″ hub length.
Hubs sold individually.
This hub uses a 1/4″ keyway slot.
The 4″ x 4″ go-kart axle hub is most commonly found on go-karts using 8″ wheels. Although these hubs are incompatible with Yerf-Dog ‘karts, these are compatible with many quads, ATVs, and trikes that use this same hub. The hub features four lug nuts, and the hubs are 2-3/4″ long. The inner bore is milled for a 1/4″ axle key.

The most common style for gokarts features a 1″ inner (or inboard) shaft diameter with the axle turned down to a 3/4″ outer diameter.

Please note that our 4″ x 4″ Go-Kart Live Axle Hubs with 1″ to 3/4″ Step-Down are sold as singles. To complete your project, you may need to buy more than one.

Specs are going to be important when selecting a new hub. Please refer to our following specs to see if this will be the right hub for your project.

SPECIFICATIONS:

Diameter: 5″ (125 mm)
Length: 2-3/4″
Keyway & key size: 1/4″ (6.5