Great fit and interface between the handlebar and stem is crucial. Traditional 2-bolt and even 4-bolt designs still allow loads to place extra stress on the bolts, which intern will twist and eventually fatigue.

While working with our test lab technicians, Easton engineers found that by locking down the top of the faceplate of the stem before tightening the bottom bolts allows the stem and handlebar interface to tighten, offering better load transfer more efficiently while minimizing loads on the bolts.

Top-Lock™ Technology significantly improves strength, stiffness and performance.