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- SM SunniMix Ultralight Aluminum Alloy Bicycle...
0 ratings
Item #:
102955540
SM SunniMix Ultralight Aluminum Alloy Bicycle Seatpost Shim Adapter Mountain Road Bike Seat Post Conversion Tube
86% of respondents would recommend this to a friend
Item #:
102955540
XCD 48
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Order now and get it around Monday, September 21
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Easily change your bike's seatpost size in seconds without any tools!
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What Stands Out
Ultralight Design
Constructed from lightweight aluminum alloy, this seatpost shim minimizes added weight while maintaining durability, making it ideal for competitive cyclists seeking performance efficiency without compromising strength.
Versatile Compatibility
Designed to fit various mountain and road bike seatposts, this adapter allows seamless conversions, ensuring cyclists can optimize their riding experience with different frame sizes and styles effortlessly.
Enhanced Stability
The shim ensures a secure fit for your seatpost, drastically reducing wobble and enhancing rider control, leading to improved comfort and stability during rides over rough terrains or lengthy distances.
Product Details
| Brand Name | SM SunniMix |
| Manufacturer | SM SunniMix |
| UPC | 791557120319 |
| Number of Items | 1 |
| Manufacturer Part Number | 30539023c5896c1b414d72155bcb0831 |
| Unit Count | 1 Count |
| Item Diameter | 27.2 millimeters |
| Color | Black |
| Material Type | Aluminum |
| Bike Type | Mountain Bike |
| Material | Aluminum |
| Brand | SM SunniMix |
| Item Weight | 0.5 lbs (230 grams) |
Who Should Buy?
-
Casual Riders
Ideal for casual riders looking to adjust seat post height for improved comfort on short rides.
-
Mountain Bikers
Great for mountain bikers needing a reliable seat post shim for optimal performance on varied terrains.
-
Road Cyclists
Beneficial for road cyclists seeking lightweight components to enhance bike performance without adding extra weight.
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Heavy Riders
May not provide adequate support or durability for heavier riders needing a more robust seat post solution.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What material is the seatpost shim made from?
Answer: It's made from premium high quality aluminium alloy. -
Question:
Is it easy to install?
Answer: Yes, it can be installed in seconds without any tools needed. -
Question:
What sizes are available for the shim?
Answer: Sizes include 27.2 to 31.8 mm and 31.8 to 34.9 mm.
SM SunniMix Seat Posts Editorial Review
No editorial reviews found
Customer Reviews & Ratings
45 customers ratings
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5 Star
85%
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4 Star
9%
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3 Star
6%
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2 Star
0%
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1 Star
0%
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9 September 2026 · via Trustpilot
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8 September 2026 · via Trustpilot
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Important information
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XCD 48
Order now and get it around Monday, September 21
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Features & Benefits
- Premium quality aluminium alloy ensures strength and lightweight performance.
- Full CNC precision machining provides smooth edges for user safety.
- Compatible with various types of bikes, including mountain and road bikes.
- Simple installation takes just seconds with no additional tools required.
- Two size specifications (27.2 to 31.8 and 31.8 to 34.9) for versatile adjustments.
- Ideal solution for overcoming size mismatches between frame and seat tube.
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