We're in a renaissance of sorts for the modern road bike, where performance and comfort are reaching unheard of levels. What once was a slippery slope that quickly tossed rider well being out the window in favor of speed and efficiency is being challenged by components like Easton's tubeless EA90 SLX Clincher Wheel. Now, due in part to the certified road tubeless clincher standard, the ability to roll smoothly over broken pavement and gravel does not hinder efficiency at all. In fact, road tubeless also boasts better puncture resistance. The SLX alloy rim is plenty wide, measuring 17. 5 millimeters internally, and it's plenty stiff for defection free turn in with instant acceleration on tap. The 25mm deap rims are laced to durable Echo hubs with double butted, straight pull spokes. They thread into dual threaded nipples that are serviced just like standard nipples with no special tools necessary. For the front, 16 spokes are used and 20 are found at the rear durability where it's needed most. The Easton Echo hubs roll on standard bearings and are easily serviced for long term durability. The These are race wheels by all accounts, yet they're strong enough for training and cyclocross racing alike. The EA90 SLX Clincher Wheel is available as a front or rear and uses standard road caliper brakes.