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Easton EC90 SL Road Chainring/Spider Assembly DM Spider - 53Tx39T Chainrings
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EC90 SL Road Chainring/Spider Assembly

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Backorder: This item is currently out of stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

Make gearing adjustments a CINCH.

The Easton EC90 SL Road Chainring/Spider Assembly is designed around the EC90 SL Crankset. Easton did away with the standard crank spider and ensuing spider-mounted chainrings of old. Utilizing Race Face's Cinch technology, this crankset uses Direct Mount 1x or 2x spiders, dropping grams and eeking out every last watt that you generate. This revolutionary new design makes fine-tuning your 1x setup to suit the course after a pre-ride, or converting your 'cross bike to a winter road bike at the end of the season as easy as a few turns of a wrench.

The Easton EC90 SL Road Chainring/Spider Assembly is available as a 53x39T (255g), 52x36T (243g), or 50x34T (227g) direct-mount spider.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

DM Spider - 50Tx34T Chainrings

Mfg PartNum: 8022749 

DM Spider - 52Tx36T Chainrings

Mfg PartNum: 8022747 

DM Spider - 53Tx39T Chainrings

Mfg PartNum: 8022745 

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You guys and girls always deliver!
by Jeremy
santa rosa california
1 of 2 customers found this review helpful.

I love that you give points for purchase that go towards new purchases. That's where most others fail. Thanks for speedy services.

Reviewed 11/6/2020
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Update on aftermarket rings
by Seattle dave
Cycling Enthusiast
6 of 6 customers found this review helpful.

This is an update on my previous review. I switched to Praxis cold forged rings of the same size, and the chain drop issue is gone. It may be due to teeth profiles as the Easton teeth seem a fraction shorter than both Shimano and Praxis.

Reviewed 9/19/2018
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Shift good, stiffness may be an issue for strong riders
by Seattle dave
Cycling Enthusiast
9 of 9 customers found this review helpful.

They shift great, just a touch slower than Shimano DA, but no issues there. I run the 52t up front, and I feel the big ring is too flimsy under high load. When sitting in the big ring and a small cog, if I jump on a max effort sprint, the chain would often slip off the front ring on the outboard side with a snap, as if the chain angle to the small cog in the back was forcing the chain off the ring, maybe combined with the ring deflecting outboard. I adjusted the front drailleur (Etap) so that it would gently rub on the outboard side, even then, tHe chain still pops off under high torque. Plan to try aftermarket rings to see if it helps.

Reviewed 4/10/2018
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