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Easton
EA90 Cinch Spider/Ring Assembly

3 out of 5 stars
1 Review
$154.99

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EA90 Cinch Spider/Ring Assembly

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.


Details

  • 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
  • Item #EAS002H
Material
EA90 aluminum
Number of Rings
2
Teeth
34/50t, 36/52t, 39/53t
Connection
CINCH direct mount
Compatible Components
EC90 SL cranks
Claimed Weight
[34/50t] 8oz (227g), [36/52t] 8.5oz (242g), [39/53t] 9oz (255g)
Manufacturer Warranty
2 years

Overall Rating

3 based on 1 ratings

Review Summary

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3 out of 5 stars

October 26, 2020

The image is incorrect...

Familiarity:
I've used it several times

for the 47-32T, 46-36T, and 46-30T chainrings. If you go to Easton's website, they have two categories of chainrings: "Shifting Rings", which are available in 53-39T, 52-36T, 50-34T, and "Gravel Rings", which are available in 47-32T, 46-36T, and 46-30T. The image that CC is using for all of the chainrings is a picture of the Shifting Rings, which have different graphics than the Gravel Rings. I purchased the 46-30T chainring, which has the number D40483 stamped on the small chainring. I hope that info helps somebody that is looking to replace their Easton chainrings. Unfortunately, I had to purchase a 46-30T replacement because I sheared off the 30T chainring on my Easton 46-30T combo while riding a steep trail while in my biggest 34T cog. The chainrings were 1 month old. To figure out what torque to use on my replacement chainrings, I emailed Raceface, and they told me that the torque spec for the bolt that holds the drive side crank arm to the left side crank arm is 50-60 Nm.

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