The lead is not given not taken... so take it with the DT Swiss ARC line of cutting-edge racing wheels The 2nd Generation ARC's are already proven beyond all doubt at the highest levels of professional Road and Triathlon racing, so how to make them even better? The 3rd generation ARC 1400's use a fully proprietary carbon rim developed in conjunction with the Aero research team at Swiss Side and extensively tested at the GST wind tunnel just over the border in Germany The new rim profile features a 22 mm internal width optimised for 28-30mm tyres in a unique hybrid V-shape that allows the use of deeper rims whilst giving superior crosswind stability even compared to the previous shallower designs The result of further refinement in the design is a weight saving of up to 125 grams a pair versus the previous generation ARC 1400 despite being both wider and deeper As you'd expect from the leading hub engineering force in cycling, the ARC 1400's come with DT's legendarily bombproof and lightweight 240 hub with their premium Patented Ratchet EXP drive system that offers reduced weight and improved bearing stance with DT's usual renowned reliability and ease of service Hand built in Europe with Swiss-made T-head Aero Comp spokes and DT pro-lock hidden nipples for top-drawer aero performance and long term build stability The front wheel comes ready for 12 x 100 mm thru axles, rear comes ready for 12 x 142 mm thru axles Maximum recommended system weight: 110 KG Wheels include, tubeless rim tape and lightweight tubeless valves, Rears have both Shimano Road and SRAM XDR freehubs included Warrantied for life against material or manufacturing defects with a 10 year crash Replacement program, please see DTSwiss.com for details Wheel weights by rim depth: 85 mm: 1772 grams a pair, 65 mm: 1619 grams a pair, 55 mm: 1549 grams a pair