He's simply doing a pisstaking on the fact that those Chub Hub look like internal gear hubs.
^ This.
They should make those hubs with a little hatch in the hub body or the side and you could store stuff in their/pour milk in and make some butter as you cycle.
^ This.
They should make those hubs with a little hatch in the hub body or the side and you could store stuff in their/pour milk in and make some butter as you cycle.