Wtb asym i 29 tcs rimasym rims use an asymmetrical design to create a rim that evenly distributes tension doesnt require dishing and makes for a faster wheel assembly high end wt69 alloy and an open cavity design keep asym weights down while eyelets prolong longevity and prevent binding featuring a full tcs inner rim profile asym rims provide a lightweight higher performance value driven option that works exceptionally well with wheel building machines featuresusage cross countryall mou