Wheelbuilding / Wheel Building / Wheel build help

Go-to spokes for the same deal?

To be built onto Kinlin XR270. 28/28 should be enough?

I'd maybe say ACI double butted if they're cheaper than umop3pisdn's other suggestions.

Personally I wouldn't go less than 32h on the rear for general commuting duties even with a 30mm rim, just because there's no great weight / cost saving and you get a slightly stronger wheel when you're more likely to be carrying a heavy bag/stuff and hitting potholes.

Also 32/32h hubs and rims tend to be easier and cheaper to find.

Go-to flip flop hubs for general commuting duties?

Novatec, System Ex, Condor, On-One.
They're all exactly the same and perfectly good in my experience.

The On-Ones are the cheapest if they've got your colour/size but you can't navigate to them on their site. If you google "on-one track hubs" however...