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EastonEA90 Cinch Spider/Ring Assembly

Item # EAS002H

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  • Black, 39/53t ($127.49)
  • Black, 36/52t ($127.49)
  • Black, 34/50t ($127.49)
  • Black, 46/30t ($127.49)
  • Black, 46/36t ($127.49)
  • Black, 47/32t ($127.49)
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Item # EAS002H

Double up your EC90 crank.

Easton's EA90 Cinch Spider/Ring Assembly allows you to add a double chainring setup to your Easton EC90 SL crankarms. Constructed from Easton's EA90 aluminum and anodized matte black, this setup consists of a CINCH direct mount spider with three ring combinations: compact 34/50t, mid-compact 36/42t, and standard 39/53t. It results in a 45mm chainline that is optimized to work best with road bike chainstay lengths and rear dropout spacing. To ensure crisp and effortless shifting, Easton went through no less than seven rounds of revisions and refinements aided by rigorous lab testing and real-world racing under the Silber Pro Cycling team. The end result is rings that shift as well and transmits power as efficiently as anything from the big three. Easton machined the rings for maximum weight savings without losing stiffness and the optimized shift ramps and pins help guide the chain allowing you to execute clean shifts under power.

  • A spider/chainring combo for Easton EC90 SL cranks
  • Spider in a CINCH direct mount
  • 34/50t, 36/52t, and 39/53t combos available
  • Precision engineered to shift crisp and clean under power
  • Aluminum construction is durable, stiff, and long-lasting
Tech SpecsWeight
Tech Specs
EA90 aluminum
Number of Rings
34/50t, 36/52t, 39/53t
CINCH direct mount
Compatible Components
EC90 SL cranks
Recommended Use
Manufacturer Warranty
2 years

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

Have questions? Chat with a Gearhead



Black, 39/53t
Black, 36/52t
Black, 34/50t
Black, 46/30t
Black, 46/36t
Black, 47/32t

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[34/50t] 227g, [36/52t] 242g, [39/53t] 255g

Reviews & Community


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Unanswered Question

Is the bolt pattern on the spider the same as the Dura Ace 9100 4-bolt asymmetric? I'm wondering if I can run my DA chainrings on this spider.

Unanswered Question

Will this work with a 10-speed drivetrain?

Installs in a Cinch

  • Familiarity: I've put it through the wringer

Wanted to go from 1x to 2x with my Easton cranks and these did the trick. Spider is easy to install and shifting is good. Rings have a little flex if you press on them with your fingers, but once on the bike and in use, I had no issues.