E Thirteen LG1R Crank Arms

Write a review
| Ask a question

Hurry! Only 1 item left

sku: 21881

  • Relax with 365 Day Returns
  • Safe and Secure for peace of mind
  • Pay by Card, PayPal, Apple Pay and Google Pay


E Thirteen LG1R Crank Arms

The lightest purpose-built DH crankset around. No beefed-up XC cranksets here. This crank gets extra time with our friend the CNC mill and loses 60g over our LG1+ cranks.

A little time in FEA (Finite Element Analysis) land made sure this savings was without sacrificing stiffness. 30mm spindles provide a rigid base for the system while our proprietary P3 Connect Polygon interface creates a more robust, reliable, impact-resistant spindle-arm junction.

LG1+ Crank Manual.
BB Standards Explained



  • Arm material: EXAr Aluminum
  • Arm length: 165, 170, 175mm
  • Spindle material: EXAr (Exalite Race) Aluminum w/ P3 Connect interface
  • Rings: Optional Guiderings/Single Mount Dual Shiftrings
  • BB shell: 68/73 or 83mm
  • Chainline:  51mm/56mm
  • Color:  blackout w/ red spindle
  • Weight: 661g  (760g, with threaded BB)
  • Extras: TiNite Plus level bottom brackets

What's in the Box:

LG1r cranks come with the following in the box for easy install:

  • Right crank arm and spider assembly
  • Left crank arm
  • BB install tool
  • Chainring nuts for single and double rings
  • Chainring bolts
  • Pedal washers
  • Instruction manual

Bottom brackets are sold separately in order to fit a variety of frames. Not sure what BB you need? Check our tech info for BB standard information above.