I'd skip the stans crest. And go with the arches ex. Wider tad bit heavier and takes a ton of abuse. I've been using them for a few yrs now and beat on them hard on the rocky single tracks here in socal. Also factor in that you can't run road tires on stans mtb rims because the rim profile is rated only to 70psi. Theydo have roadie rims as well that are good.
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Rule #10 // It never gets easier, you just go faster.