Is the extra cost worth it? I want to build a lightish set of trail wheels with these hubs but not sure which to get.

Also do the Pro3’s run any quieter than the Pro 2’s as the rachet sound on a pro 2 is too much for my liking when freewheeling.

Wanbt the build to be around 1800-1900 for the pair.

You’ll get Pro 2’s with Crest’s way under that weight (1572g on my SP’s). I also looked at Pro 3’s but having had a 24 spoke rear before I just found it too flexible, plus only QR/15mm on the front.

My Pro2/Crests were 1585g, even Flows should come out sub-1900. Pro3s are no quieter though. General consensus is to avoid the 24h ones if you value stiffness!