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Introducing the Send rims and wheels from Blackbird, a new component brand for Ibis Cycles. When we set out to improve our industry-leading Ibis aluminum S35 rims our mission was simple; eliminate pinch flats and keep the tire sealed no matter what you hit.
Pinch flats occur when you hit your wheel hard enough to “pinch” the tire between your rim and that rock or root that you didn’t see coming. Hit hard enough and the edge of your rim, the bead wall, will slice clean through that brand-new tire you just installed.
To eliminate pinch flats, we designed our bead walls with a hollow box-section profile to remove the sharp edges and create a broad contact point with the tire. This box-section results in a stronger bead wall that doesn’t slice tire sidewalls and it doesn’t add any additional weight.
This listing is for Send 1 rims.