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Item #:
85732769
Boenoea Seatpost Shim, Bicycle Reducing Sleeve 22.2/25.4/27.2/28.6/30.4/30.8/31.6/33.9/34.9mm Aluminum Alloy 100mm Length , Bike Seat Post Tube
Item #:
85732769
GBP 11
Price Details
Price
GBP 11
Excluding Shipping, VAT & Custom charges ( Shipping, VAT and custom charges will be calculated on checkout.
If Item price + shipping is below GBP 135, 20% VAT will be calculated on checkout, if it is equal or above GBP 135, no VAT will be charged. )
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Imported from USA store
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Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Saturday, August 15
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Easy to install and compatible with most bicycles, the Boenoea seatpost shim is your go-to solution for upgrading your ride!
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What Stands Out
Versatile Sizes
Compatible with various bicycle seat post diameters, offering solutions for multiple bike types and ensuring a secure fit without the need for multiple shims.
Durable Material
Crafted from high-quality aluminum alloy, providing strength and longevity while reducing weight, ensuring a reliable and efficient biking experience.
Improved Comfort
Effectively reduces seat post diameter, allowing for easy adjustments that enhance riding comfort and stability, catering to both casual and professional cyclists alike.
Product Details
| Brand Name | Boenoea |
| Manufacturer | Boenoea |
| Manufacturer Part Number | 1 |
| Item Type Name | Seatpost Shim |
| Included Components | No |
| Color | 27.2 to 30.8mm |
| Material Type | Aluminum |
| Bike Type | Mountain Bike |
| Material | Aluminum |
| Brand | Boenoea |
| Item Weight | 0.3 lbs (140 grams) |
Who Should Buy?
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Adjustable Seat Height
Ideal for riders needing to adjust their seat height quickly for comfort during long rides.
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Different Bike Sizes
Perfect for cyclists with multiple bikes, allowing easy adjustments between different seat post diameters.
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Lightweight Builds
Useful for those building lightweight bikes, as the aluminum alloy offers strength without adding significant weight.
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Fixed Seat Posts
Not suitable for bikes with fixed seat posts that do not require diameter adjustments.
Product Description
Boenoea Seatpost Shim, Bicycle Reducing Sleeve 22.2/25.4/27.2/28.6/30.4/30.8/31.6/33.9/34.9mm Aluminum Alloy 100mm Length , Bike Seat Post Tube Adapter Shim for Bikes
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What sizes of seatpost do the Seatpost Shims accommodate?
Answer: The Seatpost Shim is designed to fit a variety of sizes, specifically 22.2mm, 27.2mm, 28.6mm, 30.9mm, 31.6mm, 33.4mm, and 34.9mm. This versatility makes it an essential accessory for cyclists with different bike types and seatpost diameters. If you have multiple bikes or are looking to upgrade components, this shim allows you to use a single seatpost across different setups. Therefore, if you find yourself switching bikes frequently, having a shim that fits multiple sizes can save you both time and money. -
Question:
What material is the Seatpost Shim made from?
Answer: The Seatpost Shim is crafted from high-quality aluminum alloy, providing strength and durability while remaining lightweight. This material choice not only ensures that the shim withstands the rigors of cycling but also helps prevent rust and corrosion over time. Riders looking for reliability in all weather conditions would benefit from using this shim, as it integrates seamlessly into any bike setup without adding excess weight. -
Question:
How does one install the Seatpost Shim?
Answer: Installing the Seatpost Shim is straightforward and can be done without professional assistance. Simply slide the shim into the seatpost tube of your bicycle and then insert the desired seatpost into the shim. Ensure it's snug, and secure as per your bike's specifications. This simple installation process means that even those new to bike maintenance can enjoy the benefits of a proper fit without the need for specialized tools. -
Question:
Is the Seatpost Shim suitable for all types of bikes?
Answer: Yes, the Seatpost Shim is compatible with a wide range of bicycle types, including road bikes, mountain bikes, and hybrids. Its versatility allows cyclists to utilize various seatposts across different bikes, making it an ideal choice for anyone looking to customize their setups or transition components between bikes. Whether you’re upgrading your bike or simply need to replace an old seatpost, this shim can enhance performance and comfort. -
Question:
Can the Seatpost Shim affect my riding experience?
Answer: Using the correct seatpost shim can greatly improve your riding experience by ensuring a secure fit and maintaining proper saddle height. An improperly sized seatpost can lead to discomfort, reduced pedaling efficiency, and potential injury. With the shim allowing for a snug fit, riders can achieve optimal positioning, enhancing both comfort and performance during rides. -
Question:
What is the length of the Seatpost Shim?
Answer: The Seatpost Shim has a standard length of 100mm, making it long enough to allow for a secure fit in the seatpost tube. This length is suitable for a variety of setups, preventing any rotation or movement of the seatpost while cycling. If you ride on rugged terrains or are a competitive cyclist, this added stability can be crucial for handling and overall performance. -
Question:
Can I use more than one shim at a time?
Answer: It is not recommended to stack multiple Seatpost Shims for additional sizing, as this can compromise stability and safety. Each shim is designed to fit specific seatpost sizes to ensure a secure and proper fit. For riders needing to adjust further, it is best to select the appropriate single shim that closely matches your required size. Maintaining a single shim ensures optimal security and performance. -
Question:
Does the Seatpost Shim come in different colors?
Answer: Currently, the Seatpost Shim is offered in a sleek aluminum finish, emphasizing durability and style. It integrates well into most bicycle aesthetics. While additional colors aren't available yet, the aluminum design provides a modern look that complements various bike styles without being ostentatious. -
Question:
Is the Seatpost Shim adjustable?
Answer: No, the Seatpost Shim is not adjustable but is designed to accommodate specific diameters. This design choice ensures that once the shim is in place, it provides a secure fit that enhances the performance of the seatpost instead of allowing for movement. For optimal results, selecting the right shim based on your seatpost size is crucial. -
Question:
Where can I buy the Seatpost Shim in UK?
Answer: You can purchase the Seatpost Shim at Ubuy, a reliable online retailer offering shipping options throughout UK. Ubuy provides a convenient shopping experience with a wide range of bicycle accessories, ensuring you can easily find the correct shim for your needs. They frequently offer great deals and access to quality products, making it an excellent choice for your cycling needs.
Boenoea Seat Posts Editorial Review
The Seatpost Shim for bicycles has received favorable feedback from customers who have used it extensively. Many users appreciate the quality and functionality of this aluminum alloy shim, particularly highlighting its perfect fit when used with various bike seat posts, such as the Kinekt model. Customers report that the shim enhances their cycling experience by allowing for easy adjustments and removals thanks to its flexible design, which springs back in place after use. The product's Construction and appearance have also garnered positive remarks, with users noting its smooth machining and high-quality finish. However, there are mixed sentiments regarding its durability; while some customers find it long-lasting, a few expected a more robust performance given its aluminum composition. In summary, this shim serves its purpose effectively and is well-received by those seeking reliable bike seat post adapters. **
Customer Reviews & Ratings
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Pros
- Perfect fit for various bike seat posts.
- Allows for easy adjustments and removals.
- High-quality aluminum Construction.
- Smooth machining and good appearance.
- Reported durability over time.
Cons
- Some users expected higher durability from aluminum.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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GBP 11
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Saturday, August 15
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Measure outer diameter of seatpost and inner diameter of the frame for proper sizing.
- Available in diameter sizes from 25.4 to 28.6mm and 100mm in length.
- Made of high-quality aluminum alloy for longevity and lightweight use.
- Quick installation without the need for additional tools.
- Compatible with mountain bikes, road bikes, MTB, BMX, and fixed gear bikes.
- Enhances the fit and performance of your bicycle.
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