EC90 SL ISA Seatpost

Marsoni

M251S

$174.50

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.

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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

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

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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Does not have a proper fit on a 2024 Lexus TX 350 without some minor modification. The filter casing has a guide that it's supposed fall into one of the pleats like a notch, however, notice this filter has the white strips which I guess are added structural support. I simply cut the 2 strips on the pleat the guide falls into. The filter will not fall apart by doing this. It's a minor inconvenience that can be easily corrected yourself or simply find another filter that does not have anything blocking the pleats the entire width of the filter.

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Reviewed in the United States on January 26, 2026

Verified Purchase

Apacs1

Port Orchard, US

★★★★★ 5

Fits perfectly

Size: 7.5" x 8.7" x 1.4"

easy to install

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Reviewed in the United States on December 3, 2025

Verified Purchase