Featuring e*thirteen´s first-ever asymmetric rims, the Sylvan Race Carbon e*spec All Mountain wheels are the perfect match for light e-bikes catering to both daily trail rides and the occasional adrenaline-fueled descent.The asymmetric 30mm inside-width rims feature a low rim height profile to increase compliance, absorb impacts, reduce fatigue, and improve traction. The asymmetric profile results in near-equal spoke tension between the drive and non-drive sides, resulting in a stronger wheel and more consistent ride characteristics. The valve dock interface ensures a good seal point for your tubeless valves. These features combined with double-butted spokes and alloy nipples make for a controlled lively ride feel.The unique espec rear hub utilizes an oversized hub shell, large 6808 bearings, a steel axle, and 32 spokes, allowing it to withstand the higher drive torque and bike weight that e-bikes entail. These features also provide longer bearing life and better freehub sealing. The freehub is equipped with a 4-pawl, 3° engagement freehub to ensure rapid engagement, essential for quick accelerations on changing terrains.Specifications:- Size: 29- Drilling: 32h rear- Hub: Triple-sealed, fully machined aluminum hub w/3 degree engagement.- Included: Wheel, tubeless tape, tubeless valve, spoke x3, nipple x3, nipple washer x3, 15mm front endcaps- Spokes/Nipples: Sapim D-light 2.0-1.65-2.0mm spokes, 12mm 7075 alloy nipples, oiled nipple washers- Weight: Front 29: 1022g- Width: 30mm internal width