A new 12-speed drivetrain option is now available for trail and enduro mountain bikers. TRP released the G-Spec TR12 rear derailleur and shifter today, in addition to the G-Spec GH7 downhill-specific drivetrain launched previously. Both derailleur and shifter have unique features not seen on 12-speed offerings from SRAM or Shimano, but those features come at a premium price.
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