Chances are, if you follow cross-country mountain bike race scene, you've already seen a few of SRAM's riders sporting the new AXS Groupset. We first spotted it on Schurter's bike in South Africa in the earlier months of 2018, and despite the fact that it's been on the trails for a good amount of time, the details on the tech have managed to remain on the hush-hush. Finally, our patience has been rewarded, and after five-years in the making, SRAM is releasing its X01 Eagle AXS DUB Boost Groupset for all of us to get our hands on. Since SRAM had its electronic expertise dialed with Etap, the first thing we wanted to know was just how much it had in common with its predecessor. Just like on Etap, you'll have a fully wire-free setup, with no need to search for a spot to store your battery -- simply bolt on your shifters, rear derailleur, and pair things together. That's largely where the similarities end. Naturally, the shifters are all new, and because the demands on mountain bikes can be a bit more strenuous, harsh, and jarring, SRAM took a bit of what its designers already have learned about electronic shifting, and made some serious updates to handle the rough and rowdy conditions on the dirt. This includes a two-clutch system (we'll get into this later), and a whole lot more torque. Etap spins at 50,000 RPM, but to get things dialed for the trail SRAM builds the AXS rear derailleur with enough torque to spin 80,000 RPM for booking it down steep and quick descents. Compared to mechanical Eagle groupsets, the Eagle AXS derailleur has been contoured around the frame design a bit more. This translates to increased chain wrap, which improves both load distribution and durability, reducing wear and tear on your chain and cassette for better longevity of components. Dually, this new positioning offers a whole 10-millimeters of increased clearance over mechanical Eagle rear derailleurs. Speaking of clearance, the two-clutch system offers a whole new safety mechanism f...
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SRAM X01 Eagle AXS DUB Groupset - Boost
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