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EC90 SL Crank Arms

1 out of 5 stars
1 Review



Easton EC90 SL Crank Arms

The EC90 SL crank utilizes the Race Face CINCH technology which allows for direct mount 1x rings as well as direct mount 2x spiders, and industry leading versatility. Increasingly popular 1x setups have many advantages including weight and simplicity. Their major limitation is adaptability. A Cyclocross rider's ability to ride a course, then effortlessly change chainrings to their preferred setup is a major necessity that has, until now, been overlooked. Easton refines the design for larger ring applications with improved chain retention while reducing running noise and friction. Arms come assembled with spindle. Rings and BB sold separately.

Arm Material
carbon fiber
Arm Length
172.5, 175mm
Chainring Sizes
Bolt Circle Diameter
Direct Mount
CINCH direct Mount
1 or 2
BB Type
BB86, BSA 68mm, PF30 68mm, BB30 68mm, BBright, 386Evo
Q Factor
1x 47mm, 2x 45mm
Compatible Components
Cinch drivetrain
cranks, spindle
Claimed Weight
[172.5mm, w/o BB] 15.6oz (442g)
road cycling, cyclocross, gravel, cross-country

Overall Rating

1 based on 1 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 0 reviews

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1 out of 5 stars

March 9, 2024

Super light but not durable

I've put it through the wringer

Very light and quality finish but the NDS crankarm developed significant play. Pulled crankset and checked torque and everything at spec. Will be going back to SRAM 1x

Kearney2256741 K

Originally reviewed on