Jenson USANew · Checked Nov 4, 2026, 3:23 AM
$73.99In stockVisit store
Seatposts
Easton | Ea70 Seatpost Blk 30.9 Od | Aluminum
MPN SP21EA70309X400X0MM
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
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Technical data
Specifications
- Seatpost diameter
- 30.9 mm
- Seatpost length
- 400 mm
- Seatpost offset
- 0 mm
Catalog trust
Evidence and freshness
Technical-source dates and retailer offer checks are separate. A retailer check does not validate compatibility.
Report a correction- Technical review
- Sep 9, 2026
- Compatibility review
- Reviewed Sep 9, 2026
Approved technical sources
- Reviewed cockpit fact at Easton exact SKU/model specifications
- eastoncycling.com/products/ea70-seatpostManufacturerSource checked Sep 9, 2026Evidence reviewed Sep 9, 2026
- Reviewed cockpit fact at jenson-usa catalog row 3577
- jenson.sjv.io/c/7664279/1055465/13009ManufacturerSource checked Sep 5, 2026Evidence reviewed Sep 8, 2026