The most sure-footed, all-condition Aero wheels, the ERC range redefines stability! Back in 2016 DT broke new ground when they launched the ERC, the first truly aerodynamic wheel optimised for wider 25c tubeless tyres, but time doesn't stand still and even the best have to evolve, with a 22mm internal width and a rim profile optimised for 28-30c tyres the ERC has returned to the bleeding edge Born to produce the perfect high-speed wheelset for the real world of pot-holes and gusty lanes; DT's AERO+ design philosophy carefully balances handling in crosswinds with outright speed to produce the fastest possible durable all-conditions wheel A product of DT's continued work with JP Ballard and his team at the GST wind tunnel in Immenstaad, Germany the new ERC rim profile offers the best possible mix of stability and speed, a hooked, 22mm wide design allows easy tubeless installation and opens up a huge range of tyre options Aero Lite II and Aero Comp II spokes used on the ERC 1100's measure 35% thinner and 23% deeper than the first generation, further reducing the rotational drag for which DT's research leads the world When you're making the very finest wheels only the best will do and the ERC 1100's feature DT's 180 36-tooth Ratchet EXP hubs with SiNC ceramic bearings, the very fastest road disc hubs available with unmatched reliability and easy servicing Maximum recommended system weight: 120 KG When bought as a pair they will include both Shimano and SRAM XDR freehubs, rim tape and lightweight tubeless valves Weight: 1418 grams a pair in 45mm and 1391 grams a pair in 35 mm Front Axle: 12x100mm Rear Axle: 12x142mm Front and Rear options available/