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Easton EA90 Aluminum 2-Piece Crankset - 1
Easton EA90 Aluminum 2-Piece Crankset - 2

Easton EA90 Aluminum 2-Piece Crankset

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About This Product: Easton EA90 Aluminum 2-Piece Crankset

The Easton EA90 Aluminum 2-Piece Crankset at J&R Bicycles is part of Easton Cinch system modular technology which means extra customization options. No matter the terrain you love to ride, this two-piece crankset will give you the high-level performance you expect. Made of durable yet lightweight alloy the EA90 crankset is made to last without adding drag. Compatible with Easton’s Cinch Power Meter spindle.


  • Cinch Direct Mount Technology for 1x and 2x
  • EA90 Alloy Arms
  • EA90 Spindle
  • Cinch Power Meter Compatible


  • SIZE: 170/172.5/175mm
  • SHIFTING RINGS: 47/32, 46/36, 46/30 53/39, 52/36, 50/34, W/ REMOVABLE SPIDER
  • SINGLE DIRECT MOUNT: 38T, 40T, 42T, 44T, 46T, 48T, 50T
  • WEIGHT: 534g 172.5mm W/O RING OR BB
  • WEIGHT COMPLETE: 622g 172.5mm 40T 1X W/O BB
  • CHAINLINE: 129mm SPINDLE 45mm W/ 2X, 47.6mm W/ 1X
  • BB OPTIONS: BB86, BSA 68mm, PF30 68mm, BB30 68mm, BBright, 386Evo

Crank Size Chart

Crank Size Chart
Inseam length Crank Length
Crank Size: Micro, Mini. Junior
Inseam length: 15 - 16 inch Crank length: 130 mm
Inseam length: 16 - 17.5 inch Crank length: 135 mm
Inseam length: 17.5 - 19 inch Crank length: 140 mm
Inseam length: 19 - 20 inch Crank length: 145 mm
Inseam length: 20 - 22 inch Crank length: 150 mm
Crank Size: Junior, Expert, Expert XL
Inseam length: 20 - 22 inch Crank length: 150 mm
Inseam length: 22 - 23 inch Crank length: 155 mm
Inseam length: 23 - 25 inch Crank length: 160 mm
Inseam length: 25 - 26 inch Crank length: 165 mm
Crank Size: Pro and Larger
Inseam length: 26 - 27 inch Crank length: 170 mm
Inseam length: 27 - 28 inch Crank length: 175 mm
Inseam length: 28 - 30 inch Crank length: 177.5 mm
Inseam length: 30 - 31 inch Crank length: 180 mm
Inseam length: 31 - 32 inch Crank length: 185 mm
Inseam length: 33+ inch Crank length: 190 mm

How To Measure Your Inseam

  1. Start with a pair of pants you already have that fit you well and lay them flat on the floor.
  2. Carefully measure the length from the crotch seam to the bottom of the leg.
  3. THIS NUMBER IS YOUR INSEAM. Use this number to help you choose your cranks.