If we can't convince you that the 56mm deep Easton EC90 Aero Wheelset is the faster overall wheel, then take a look at the 38mm deep Easton EC90 SL Carbon Tubular Wheelset. It's still a brutally strong wheel, just with a shallower rim depth that is both easier to steer in crosswinds and lighter for better acceleration and climbing.Rim depth is a tricky thing to get right. The slower you're going, the balance starts to tip towards weight rather than aero. How you weigh the decision is hard. Save energy on the flats to be fresher for the climbs, or spend more energy on the flats to have less weight to propel uphill. Turn your brain inside out and get back to us.The spoke nipples are internal which makes them more aero and thus faster. If the wheel is built properly, and it doesn't leave the Easton factory unless it is, the wheel won't come out of true. Ever.The hubs are Easton's R4 SL design. They're 36 grams lighter per set than the older R4 hubs, plus they include ceramic bearings (grade three hybrid ceramic), a pared down rear axle, and the lightened R4 SL freehub body. They have tool-free bearing preload adjustment on both wheels, the axles are made from 7050 aluminum, and the pawl carrier has been redesigned to be wider and have a larger diameter to improve its ability to resist flex under high-torque loads.The Easton EC90 SL Carbon Tubular Wheels use full carbon rims that are 21mm wide. They're attached to the hubs with Sapim double-butted stainless steel spokes and internal alloy nipples. The 18 spoke front wheel is radially laced while the 24 spoke rear is radial on the non-drive and cross-two on the drive. The rims, spokes, and hubs are all Black. They come with a full set of brake pads along with quick releases. Easton hand built wheels do not have rider weight limits. They're available with either a Campagnolo or Shimano/SRAM style freehub body.
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