The EC90 SL ISA puts Easton's superlight unidirectional carbon together with its Independent Saddle Adjustment head. Refine your position without undoing the rail clamps for every small tweak, then lock the saddle angle in place so it stays put once you've found your fit.

Highlights

  • EC90 unidirectional carbon
  • Independent Saddle Adjustment (ISA) head
  • Saddle angle locks in place
  • 27.2mm x 350mm, 80mm minimum insertion
  • 20mm setback
  • 200 g (claimed)

Di2 ready

Easton makes a 27.2mm Di2 battery insert for its ISA 27.2 seatposts, sold separately.

Compatibility & fit

27.2mm seat tubes. 350mm long with an 80mm minimum insertion. Fitting and saddle set-up are separate workshop services at Tune Cycles.

Easton covers static (non-dropper) seatposts under its Lifetime Warranty for the original owner, and Easton's product page adds that crashes are included. The Lifetime Warranty isn't transferable and doesn't cover slow wear and tear, or parts that are scratched but still work as intended. For warranty support, return the product to Tune Cycles and we'll manage the claim with Ride Fox Australia, Easton's Australian distributor.
  • EC90 carbon seatpost
  • ISA independent angle and fore-aft adjustment
  • 27.2 x 350mm
  • 20mm setback
  • 200 g (claimed)
MaterialEC90 carbon
FinishMatte black UD carbon
Diameter27.2mm
Length350mm, 80mm minimum insertion
Head offset20mm
Weight200 g (claimed)
SKU RFX-EPC9027352
Brand Easton
Shipping Weight 0.3000kg
Shipping Width 0.100m
Shipping Height 0.080m
Shipping Length 0.500m