Minimum Cable diameter for spooling

I have 200m of cable to wrap.
what is the minimum safe diameter to wrap around a hub. I’ve looked at most garden hose reels and they have approximately a 6 inch diameter hub.
I don’t want the cable to look like a ‘slinky’ once it is deployed.
any suggestions?

Hi Doyle,

The tether documentation (Fathom Tether) has 8" as the minimum bend diameter but I’m fairly confident that 6" would work fine. The numbers here are pretty conservative.