2021 Trek Emonda SLR 9 e Tap Road Bike in Navy Carbon Smoke/ Viper Red is an ultralight, aerodynamic carbon road bike designed & built to be the fastest climbing bike Trek have ever made. The Emonda SLR 9 e Tap features an ultra-light aerodynamic 800 Series OCLV Carbon frame that according to Trek, is the lightest they have ever made weighing in at under 700 grams. Bontrager Aeolus RSL 37 OCLV Carbon tubeless-ready wheels are designed for climbing & developed alongside the Émonda. The Aeolus RSL OCLV Carbon integrated aero bar/stem & ultralight Bontrager Aeolus RSL 37 OCLV Carbon tubeless-ready wheels with Bontrager R4 320 Handmade Clincher, Hard-Case Lite tyres further works to keep the weight down & speed up. Speaking of speed, you want those seamless gear changes. Trek deliver using the advanced wireless electronic 2x 12 SRAM RED e Tap AXS is the smartest, smoothest electronic drive train shifting on the market, coupled with SRAM RED AXS power meter helping to push your performance to the limit. Going that fast, you need stopping power, & you have it with the powerful SRAM Red e Tap AXS hydraulic disc brakes. This bike is great for Attention to detail to make a super fast & light bike make the Emonda ideal for beating your PBs getting you up the climbs first & winning those competitions. Features Fast & stable Bontrager Aeolus RSL 37 OCLV Carbon tubeless-ready wheels SRAM RED e Tap AXS wireless electronic drive train Ultra-light & aerodynamic 800 Series OCLV Carbon frame Aeolus RSL OCLV Carbon integrated aero bar/stem SRAM RED AXS power meter & powerful hydraulic disc brakes. Bontrager Aeolus Pro, carbon rails, 145 mm width saddle