If you’re a bit of a tech dork like me, you probably get more excited by the latest dream-worthy drivetrain than by the far more common mid-level stuff. It’s not our fault, though, with the best tech, the most weight-saving features, and likely a dash of carbon or titanium serving us irresistible bait for easily distracted gearheads everywhere. Despite this, we’re all aware that the cost-to-performance ratio doesn’t make a lot of sense, especially so if we’re talking drivetrains. And given that there are far more mid-level than dentist-worthy bikes on the trails, we should be paying more attention to the drivetrains that come on them.
The latest GX Eagle 12-speed drivetrain retails for $545 USD and includes an ‘Eagle Expansion’ cassette with a massive 52-tooth large cog that provides a 520-percent range. It’s also a big deal for SRAM.
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