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Easton EC90 Carbon Seatpost
Easton EC90 Carbon Seatpost

EC90 Seatpost

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  (4 customer reviews)
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Shave weight without giving up strength.

The EC90 Seatposts are the lightest in Easton's line with a full carbon construction, including the upper and lower clamp plates. Unlike the Zero, this model features 20mm of setback.

Easton has managed to reduce weight even more thanks to TaperWall™ technology which eliminates excess material without sacrificing the structural integrity or the durability of the post. Unique Relief-Area Design™ technology is also used to prevent crimping by placing a flat section corresponding with the clamp zone.

The EC90 Seatpost is available in 27.2 or 31.6mm diameters. 350mm length. Claimed weight: 200g (31.6mm). Matte UD Carbon finish.

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.

The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.


Weight: 200 grams


Weight: 200 grams

Ordered by Most Relevant First
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1 stars
I love this seatpost!
by Daniel Savich
Cycling Enthusiast

Beautiful design, looks awesome! Dampens vibration great with a stiff aluminum frame set, best seat post I've owned!

Reviewed 9/25/2017
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Beautiful Seatpost!
by Jeff B.
Cycling Enthusiast
San Francisco Bay Area

This seatpost is absolutely beautiful... light and strong (so far!). The available sizes were limited, but the 31.6 fit my frame perfectly. The 20mm set back is the correct offset for me. No slippage in the frame or seat, with carbon lube, the clamp holds the seat firmly. Highly recommended.... Jeff

Reviewed 7/28/2014
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Snapped after going off a curb.
by Anonymous
Competitive Racer
Novato, CA
1 of 2 customers found this review helpful.

Tonight I rode off a curb while seated and the post literally snapped (two days before my next race).

Reviewed 4/12/2018
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Absorbs vibration well.
by bikelighting
Cycling Enthusiast
San Francisco, CA
1 of 1 customers found this review helpful.

Adjusts front to back nicely. Real PITA to get the seat rails into the grooves when first installing.

Reviewed 1/18/2013
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