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Easton EC90 Carbon Seatpost
Easton EC90 Carbon Seatpost

EC90 Seatpost

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The EC90 Seatpost provides aggressive weight savings and excellent durability with a comfortable 20mm of setback.

This post is entirely constructed from Easton's top EC90 carbon fiber, including the upper and lower clamping plates. Taperwall™ technology lowers weight without giving up strength, and the Relief-Area Design™ places a flat section corresponding with the clamp zone to prevent crimping.

The EC90 Seatpost is available in 27.2 or 31.6mm diameters. 350mm length. 20mm setback. 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

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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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