TRS Plus Cranks sport a one-piece non-drive arm and spindle that moves the spindle to the non-drive side for easier drivetrain maintenance. An adjustable chainline fits both Boost and non-Boost chainlines is achieved by placing spacers inboard or outboard of the chainring. Cranks include an 8mm self-extractor. Key Features: Chainline spacers achieve non-Boost, or Boost.,Spindle on NDS for easy drivetrain maintenance, adjustable chainline, and 8mm self-extractor,Included BB/lockring tool, lockring, APS adjuster, User Manual, and sticker,7050 Aluminum,Width: 68/73mm, Diameter: 30mm, Interface: P3 Connect,Q FACTOR: 169.5mm.