At 1175 grams, the EC90 SLX is the ultimate carbon climbing wheel. However, it is easily stiff and strong enough for the sprinters. Easton’s new 24.9 mm carbon tubular rims are laced to the already proven R4 hubs to create a fast, light and strong wheel set. Do you want to go fast? Then, look no further! The EC90 SLX carbon was raced during 2007 by several top teams without a single wheel failure!