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e*thirteen components
TRS Plus Crank Arms

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Why We Like The TRS Plus Crank Arms

We like the TRS Plus Crank Arms because of its innovative design, and that it maintains the durability we need for mountain biking. Easier drivetrain maintenance comes from a one-piece non-drive arm and spindle that moves the spindle to the non-drive side, and an adjustable chainline fits both Boost and non-Boost. Plus, its aluminum construction maintains an optimal strength-to-weight ratio.


  • Innovative crank arms for big days on the mountain
  • Spindle on non-drive side for easy drivetrain maintenance
  • An adjustable chainline with spacers achieve non-Boost or Boost
  • 7050 aluminum is highly durable and lightweight
  • Item #ETR1WVG
Arm Material
7050 aluminum
Arm Length
170, 175mm
Bolt Circle Diameter
BB Type
BSA threaded, T47, BB92, PF30, BB30
Q Factor
non-Boost, Boost, SuperBoost (chainline spacers)
Compatible Components
frames with 68/73mm BB shell
1mm chainline spacer, 2mm chainline spacer, lockring, lockring tool
Claimed Weight
Manufacturer Warranty
5 years
mountain biking

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