The SRAM 10-speed shifters feature Exact Actuation Ratio and is part of SRAMs new 2x10 line designedTo give youThe benefits of a 2x10 drivetrain. Benefits of a 2x10 system include a better chainline, a narrower Q-factor (distance between pedal centers), andThe simplicity of having a full range of useable gears while eliminatingThe redundant gear combinations.Exact Actuation delivers an identical 3mm adjustment between each gear onThe cassette.That meansThe cable pullsThe derailleur exactly 3mm e
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