Lightest splined hub?

Could anyone please tell me what the lightest splined hub available is?

Thanks,
Andrew

i think that would be the Profile Titanium axle,they will not slot one for a uni hub,ive been down that road.Ti would probobly snap under unicycle force anyhow.

I should’ve specified but I did mean unicycle hubs. Is the majority of the weight in the axle then?

Thanks,
Andrew