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Tugging on steel cables to change gears might sound a bit archaic, but modern drivetrains perform pretty damn well these days. We've got single chainring setups that deliver over 500-percent range, don't require a guide, and are relatively reliable and lightweight. Life is good. Rotor thinks it could be better, though, and their approach uses hydraulic fluid instead of a cable, and a massive 10 - 52 spread, 13-speed cassette that should provide enough range for any rider and any mountain. Check out more
