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EC90 SL ISA Seatpost
EC90 SL ISA Seatpost
EC90 SL ISA Seatpost
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EC90 SL ISA Seatpost

Marsoni M251S
Sale price$174.50
Pay 4 payments of $43.62 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
EC90 SL ISA SeatpostThe newly redesigned EC90 SL ISA Seatpost takes our superlight unidirectional carbon and applies our patent pending Independent Saddle Adjustment, allowing for perfect fitment with independent seat angle and fore aft movement. ISA allows you to refine your positioning without needing to undo your rail clamps for each minute tweak. Saddle angle is then locked in place so you have the confidence your saddle will stay put after you find your fit.
Easy Shipping

Quick Dispatch:

Your EC90 SL ISA Seatpost orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your EC90 SL ISA Seatpost ships.

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Questions about EC90 SL ISA Seatpost, sizing, or delivery? We're just an email away.

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 2406 reviews
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Product Reviews
Y
Verified Purchase
YETI FRED
Birmingham, US
★★★★★ 5
Affordable
Size: 16AWG -10FT 2Pin DT
Used them to install Morimoto 2 Banger pods on my vehicle. Casing for the wires is thick enough that will stand the weather and abrasion. I spliced them to make just one run, added braided sleeving (for looks and additional protection). The wire quality and thickness made the connection with waterproof connectors strong and durable. Saved me around 20 dollars as compared to brand name wires.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2024
J
Verified Purchase
JOSE ANTONIO ROSALES
Birmingham, US
★★★★★ 5
Perfectos
Size: 16AWG -10FT 2Pin DT
Exelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025
G
Verified Purchase
Gregory
Los Angeles, US
★★★★★ 4
2021 JL Jeep
Size: 16AWG -10FT 2Pin DT
I used these to plug in my mopar lights for my wrangler. Matched right up to the factory plugs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2025
S
Verified Purchase
Shawn Moore
Alexandria, US
★★★★★ 5
Don’t hesitate
Size: 16AWG -10FT 2Pin DT, Size: 16AWG -10FT 2Pin DT
These harness extenders are great quality for the price. Don’t go with any other brand but this one 10/10
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 2, 2025
N
Verified Purchase
Nicholas Skleba
Carnegie, US
★★★★★ 5
Inexpensive
Size: 16AWG -10FT 2Pin DT
Good value, inexpensive way to extend other wiring. Decent materials and seem close to OEM.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2025

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