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@hacha
Why ? I'm used to, I ride them since 1 year and i've never puncture with them
I've made a mistake, the rear one is an Open pro anthracite, and the front one an Open pro SUP (UB control)..
I also have some wheelset with Open Sup CD & Open 4 CD but they looks the same..
I guess it's just a question of appelation/generation..I don't know technical differences..
Columbus Gilco for the top tube, and Columbus SLX for the rest: