Blackbird Send Wheelset
Blackbird Send Wheelset, Introducing the Send wheels from Blackbird, a new component brand for Ibis Cycles. When Ibis set out to improve their industry-leading Ibis aluminum S35 rims, the 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 they designed the 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. The unique bead wall is used on both the Send 1 and Send 2 rims, but the Send 2 gets a little something extra.If you ride hard, you know you're going to dent your aluminum rims eventually, and it's your rear wheel that takes the brunt of the damage. You can bend back a bead wall but dent your bead seat (where your tire seals), and you'll be walking back to the trailhead. You can't bend the bead seat back, which means you can't run your tires tubeless.To reinforce the bead seat on the Send 2 rims, Ibis added a pair of ribs directly beneath the bead seat. The Send 2 gains 45g per rim because of this reinforcement, but it is a small penalty compared to the weight of the insert you need to protect flimsier rims.Are you looking for a lightweight aluminum rim with good strength? You'll want the Send 1. Need something a bit burlier? Choose our Send 2. The Ibis Enduro World Series Team has been testing the Send 1 on the front and a Send 2 in the rear for the last two years. Four EWS racers, several EWS stage wins, three EWS podiums, one Swedish National Enduro Championship, and they have only had one flat on race day. Mission accomplished.Blackbird Send Wheelset includes the Send 1 front wheel, and Send 2 Rear wheelDetailsPosition:Front & RearRim:Send 1 front, Send 2 rearHub:Ibis LogoRotor Type:6-boltHoles / Spokes:32Tire Width:2.35 - 2.8"Inner Rim Width:35mmOuter Rim Width:44mmSpoke:Sapim D?'Light J?'bend (3?'cross lacing front and rear)Nipple:AlloyValve:IncludedRim Material:6061 AluminumTubeless Ready:YesRim Tape Installed:YesWeight:2060g (29" set), 2000g (MX set)Rim Weight (27.5"):543 grams (Send 1), 590 grams (Send 2)Rim Weight (29")565 grams (Send 1), 625 grams (Send 2)Warranty:Rims backed by a lifetime warranty on defects or impact damage. Hubs guaranteed for 2 years against defects (Click here for details)