For me, the most interesting (and daunting) part of building the Project XC Race Rocket bike was configuring the drivetrain. As I’ve upgraded most of my other bikes to proper, modern 1×11 or 1×10 drivetrains using entire groups, there was a growing collection of random parts collecting in bins. Could they be combined with a few select upgrades to create a full functional wide range drivetrain? Turns out, yes. Yes they can.
While any crankset could have been subbed in and outfitted with a narrow/wide chainring, I’d been wanting to test Rotor’s oval rings for a long time. And at the same time I’d resisted it for a long time. What if I loved them and couldn’t ever go back to round rings?