Description
    
        Easton's new EA90 seatpost applies their patent pending ISA saddle adjustment system allowing for independent seat angle and fore-aft movement, helping you 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...    
    
    
        
            
    
      
    
    
    
     Easton EA90 ISA Seatpost Item # 975521
                        
            
    
      
    
    
    
    Description
Easton's new EA90 seatpost applies their patent pending ISA saddle adjustment system allowing for independent seat angle and fore-aft movement, helping you 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.
Specifications:
- Material: EA90 Alloy
 - Seatpost Weight:
        
- 0 mm Offset: 259 g
 - 20 mm Offset: 268 g
 
 - Finish: Black Anodized
 - Diameter: 27.2 mm
 - Seatpost Length: 350 mm with 80 mm Minimum Insert
 - Seat Rail Clamps: ISA Round Rail
 
Part Numbers for Easton EA90 ISA Seatpost
Reviews
        
            Rated 3 out of
            5
         by
        RJLund from
        Good adjustablity, but comes loose.
        Great overall adjustablity to dial in saddle position however the rail clamp came loose after about a dozen rides. Never had this happen to any of my other bikes/seatposts in decades of riding. I've seen this noted in other reviews of this product.
        
Date published: 2025-07-25