EASTON SP20EC90SL27.2X350X2 Seatpost Offset 821973354996 350MM 20MM

( Brand: Easton ), ( Manufacturer Part Number: SP20EC90SL27.2X350X2 ), ( Item Diameter: 20 Mm ), ( Material: Aluminum ), ( Part Type: Seatpost ), ( UPC: 821973354996 )

Review EASTON Seatpost 27.2 350mm 20mm Offset

Easton EC90 Seatpost - A Sleek, High-Performance Solution for Your Bicycle

The Easton EC90 Seatpost is a testament to Easton's unwavering commitment to crafting high-quality, innovative cycling components. This particular model, with the item number 821973354996, is designed specifically for a 27.2mm seat tube diameter and offers a length of 350mm. It also features a 20mm offset, providing an optimal balance between comfort and efficiency.

Crafted from Easton's renowned EC90 carbon fiber, this seatpost is incredibly lightweight, yet incredibly strong. The carbon fiber material is known for its excellent stiffness-to-weight ratio, ensuring a responsive and efficient ride. The seatpost's sleek design not only enhances the aesthetics of your bicycle but also reduces drag, contributing to a smoother, faster ride.

The Easton EC90 Seatpost boasts a 2-tone carbon weave, showcasing the intricate and meticulous construction process. The post is engineered with Easton's proprietary TaperWall technology, which reduces weight by thinning the seatpost walls towards the bottom, while maintaining structural integrity.

Ease of installation is a priority with this seatpost. It comes equipped with a two-bolt head design, providing a secure and reliable fit. The post also features Easton's reversible clamp design, allowing for a seamless integration with both round and oval saddle rails.

In summary, the Easton EC90 Seatpost is a top-tier upgrade for your bicycle. Its lightweight design, combined with its impressive strength and stiffness, ensures a ride that is both comfortable and efficient. With its sleek design and easy installation, this seatpost is an excellent choice for cyclists seeking a high-performance component that also complements their bicycle's overall look.

The Easton EC90 Seatpost (Model: 821973354996, 27.2mm diameter, 350mm length, 20mm offset) is a high-end seatpost designed for road cycling. Here are some pros and cons to consider before making a purchase:

1. Lightweight: The EC90 Seatpost is made of carbon fiber, which makes it one of the lightest seatposts available in the market. This can help improve the overall efficiency of the bike and reduce fatigue during long rides.

2. Stiffness: Carbon fiber provides excellent stiffness, ensuring that the rider's pedal power is efficiently transferred to the bike for optimal performance.

3. Aerodynamics: The sleek design of the seatpost reduces air resistance, helping to improve speed and efficiency.

4. Durable: Easton uses high-quality materials and construction techniques, ensuring that the seatpost is durable and can withstand the rigors of regular use.

1. Expensive: As a high-end product, the Easton EC90 Seatpost is not cheap. The price might be a deterrent for some potential buyers.

2. Compatibility: The seatpost may not be compatible with all bike frames, so it's essential to verify that it will fit your bike before purchasing.

3. Fragile: While carbon fiber is strong, it can be fragile and prone to damage if not handled properly. This could potentially lead to costly repairs or replacements.

The Easton EC90 Seatpost offers several benefits, including lightweight, stiffness, aerodynamics, and durability. However, its high cost and potential compatibility and fragility issues are significant drawbacks. If you are a serious road cyclist looking to improve the performance of your bike and are willing to invest in high-end components, the Easton EC90 Seatpost could be a worthwhile investment. If you are on a budget or have concerns about compatibility, you may want to consider other, more affordable options.

Details:

length : 350mm w/ 80mm min. Offset: 20mm. Bought new and used for a brief period replaced with another seatpost. Easton EA90 seatpost has a great saddle adjustment that just works and stays put.

Quill sizes: 27.2mm. In great condition.

part #: sp20ec90sl272x350x2 prices

• $194.99-$219.99

specifications ribicycl:

• brand: Easton
• mpn: Sp20ec90sl27.2x350x2
• item diameter: 20 Mm
• material: Aluminum
• part type: Seatpost
• upc: 821973354996

returns ribicycl:

• policy: No Returns

general ribicycl:

• Cycling > Bicycle Components Parts > Seatposts
• condition: Used

offer ribicycl:

• sold: 0
• quantity: 1
• options: Ship-to-home
• started: January 11, 2026
• best offers: True
• availability: In Stock

seller ribicycl:

• city: Bellevue, Washington
• # reviews: 80
• rating: 100.0%

shipping ribicycl:

• carrier: USPS
• class: Standard
• type: Calculated
• transit: 4-10 Days
• service: USPS Ground Advantage
• cost: $11.36

payments ribicycl:

• wallet: Google-pay
• credit card: Discover
• other

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