If you spend your nights dreaming of flying up Alpe d'Huez, have a BMI of less than 10%, and have the power to weight ratio of a Saturn V rocket, then the Easton EA90 SLX rear road wheel is for you. This is about as lightweight as alloy, or any wheels for that matter, get. Thanks to an innovative rim technology and the sealed R4 SL lightweight hubs, this is a wheel that was meant to literally float up mountains, and we'd chose it over a carbon wheel any day for serious mountain riding. So why chose alloy over carbon for climbing? Not only is this wheel insanely light, but you also get an alloy brake track, which is safer and more effective for braking on wicked descents without worrying about rim failure or overcooking a turn.
Lightweight EA90 construction helps shed grams so those hills feel a little shorter
Exclusive Gen 4 rim means the rear rim is designed more robustly for increased stiffness under pedaling loads and keeps the weight down
Lightweight spokes for less rolling mass
R4 SL hubs spin up fast, keep rolling, and weight next to nothing thanks to long wearing, lightweight ceramic bearings
Newly designed pawl carrier flexes less under loads
Straight-pull, double-butted Sapim spokes are lightweight and help increase aerodynamic efficiency
For use with Shimano Ultegra and Dura-Ace 10-speed cassettes