About Easton EA 90 SL Wheelset: The EA90 SL takes the best attributes of the EA90 SLX and adds a few more spokes to give increased lateral stiffness for the bigger, stronger rider. At only 60 grams more, the EA90 SL is a formidable competitor that combines light weight, enhanced lateral stiffness and bomb-proof durability. Wheel size 700C Weight 700C. Front: 646 g, Rear 886 g, Pair: 1532 g Hubs R4-series. Black anodized finish. Precision-sealed cartridge bearings with asymmetrical, low-drag seals. Tool-free bearing preload adjustment front and rear. Cassette Body All alloy, oversized inboard ratchet mechanism with three pawls. Precision-sealed cartridge bearings with asymmetrical, low-drag seals. Shimano, Campagnolo, and Sram compatible. Rims Gen4. Black anodized shot-peen finish. Welded machined brake surface, 21mm front, 25mm rear. Spokes Sapim™ 2.0/1.7/2.0 double-butted stainless steel silver. Spoke Count 24 front, 28 rear Nipples Nickle-plated brass rear DS, custom-anodized aluminum NDS rear and front.