I recently got a new wheelset Reynolds Solitude from a friend. He bought a new bike and it came with these wheels so he sold them as take-offs. They have internal spokes. I have one problem with them ...
I have an old mavic race rear wheel where the hub is rusted, but the spokes and rim is in prime condition. Thinking about changing just the hub (reusing spokes) to a fixed flip-flop to use the wheel ...