Blackbird Send 2 29" Rim

Send 2 rims have reinforcing ribs directly beneath our bead seat adding 45g per rim, still lighter than using tire inserts The evolution of Ibis' S35 with new boxshaped bead walls New bead shape creates a broad contact point with the tire to prevent pinch flats Won't slice tire sidewalls and doesn’t add any additional weight 6061 aluminum with minimalist section height of 17mm 5mm spoke offset 40psi maximum Backed by a seven year warranty