Ive got flow, and old Arch
I run the arch on a 160mm bike, they are plenty wide enough for a 2.35 tyre, the flow are a little wider so if you want to run 2.5 that might make your mind up.
The flow hold up a bit better to abuse but I only really noticed the difference on my hardtail where the arch took a good few dings which the flow hasn’t
arch come up about 1750g I think, flow about 1900, but the weight does feel like it makes a difference.
overall I prefer the Arch on my FS bike, it feels much faster and they cope with the abuse OK for me. shame they aren’t available as factory built hope hoops though as that saves a fortune over a custom build