Have long used a set of Mavis Deetraks for DH -they're Mavic hubs built on the solid but far-from-light 325 rim - think the rim weighs 750g or so.
Looking for a lighter set, just for a bit more acceleration and general niceness to ride, but without sacrificing durability.
Considered rebuilding the wheels with Flow EX - 250g off each wheel would be brilliant - bt concerned that they'd be a little flimsy for DH use? Looked at the Syntace W40 also - more DH-intended, still very light, but they might also be a bit soft?
Mavic options are the 721, which is Narrow, or the 729, which saves almost nothing.
Any good ideas out there? Spank? Sun?