Zipp Service Course SL-70 XPLR Drop Handlebar – Aluminum 31.8mm 46cm Matte Black A2. Zipps Service Course SL 70 XPLR. The bars moniker XPLR exemplifies the desire to explore the world with an expanded definition of cycling on a drop bar bicycle- from paved roads onto gravel mud dirt and even single track. The Service Course SL 70 XPLR help you go faster by placing your body starting with your hands in an optimal “comfort zone” position for hours of rough riding over mixed terrain. Todays riders demand a few things out of their cockpit whether they are doing a two hour training ride from home or a 200 mile gravel adventure: comfort control and the ability to carry what they need. We met these needs by creating a bar with shallow and wide drops specifically focusing on two crucial metrics-outsweep and flare.

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