The EC70 ISA puts Easton's light unidirectional carbon together with its Independent Saddle Adjustment head. You set fore-aft position and saddle angle independently, then lock the angle in place with two pitch bolts, much like adjusting limit screws.

Highlights

  • EC70 unidirectional carbon
  • Independent Saddle Adjustment (ISA) head
  • Two pitch bolts lock in saddle angle
  • 27.2mm x 350mm, 80mm minimum insertion
  • 0mm or 20mm setback
  • 210 g (0mm) / 223 g (20mm), claimed

Adjustability with security

Unlike single-bolt designs, the ISA head gives you fine adjustment and a secure hold: once you've found your saddle angle, the two pitch bolts keep it there while you tweak fore-aft position 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.

Sizes & options

SetbackWeight (claimed)
0mm210 g
20mm223 g
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.
  • EC70 carbon seatpost
  • ISA independent angle and fore-aft adjustment
  • Two-bolt angle lock
  • 27.2 x 350mm
  • 0mm or 20mm setback
MaterialEC70 carbon
FinishMatte black UD carbon, matte black head
Diameter27.2mm
Length350mm, 80mm minimum insertion
Head offset0mm or 20mm
Weight210 g (0mm), 223 g (20mm), claimed
SKU RFX-P-EA-EC70-ISA
Brand Easton
Shipping Weight 0.3000kg
Shipping Width 0.100m
Shipping Height 0.080m
Shipping Length 0.500m

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