Seat Reducer in comparison
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Last updated on 19.10.2026
1
Cane Creek Shim Seat Post Bushing
Cane Creek
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9,9
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2
Long 29.8mm - 27.2mm Seat Post Adaptor Shim Sleeve Reducers Bike Saddle Stem
Hard To Find Bike Parts
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9,8
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3
sourcing map Alloy Bike Seat Post Reducer Shim 31.8mm to 34.9mm 60mm Length Aluminum Bicycle Reducing Sleeve Conversion Seat Post Tube Adapter for Mountain Bike Road Bike City Bike
sourcing map
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9,8
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4
cyclingcolors Reduction Ring for Bicycle Seatpost 27.2MM > 29.8MM Universal Reducer Adapter
cyclingcolors
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9,7
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5
Seatpost Adapter Shim - Adjustable Conversion Sleeve, Aluminum Alloy Reducer | Universals Seat Tube Expander for 25.4mm to 30.9mm & 31.6mm to 34.9mm Sizes, Durablee Cycling Accessories
Generic
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9,7
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6
A ABSOPRO Seatpost Shim Adapter 30.9mm 1.22" ID Bike Seatpost Tube Purple
A ABSOPRO
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9,6
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7
hauck Alpha Cosy, Jersey Charcoal - Seat Reducer Cushion for Alpha+ Wooden Highchair, Supportive Seat Pad for Toddlers 6 Months+, Soft Fabric, Machine Washable, Anti Slip
hauck
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9,6
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8
1Pcs Bike Seat Post Shim Tube Sleeve Reducer Adapter, Aluminum Alloy Construction, Bicycle Seatpost Shim Aluminum Alloy Bike Seat Post Tube Adapter (33.9 to 34.9)
Whychstore
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9,6
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9
Bicycle Seatpost Adapter Shim Tube Sleeve Reducer Compatible with Seat Post Diameters 22 2 to 34 9 mm (31.6 to 33.9)
SPORTARC
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9,5
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10
POLISPORT 8015000022 – Mini Pelican Fleece Toddler Seat Reducer with 3-Point Harness for Trailer, Stroller and Cargo Bike – Warm, Safe and Compatible for Children from 7 to 18 Months, White
Polisport
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9,5
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You might also be interested in these Seat Reducer.
XLC Unisex - Adult Sp-x20 Casq.Reducer Seat Post 31.6-34.9 120mm Stem, Black, One Size
Innovative equipment for leisure and touring riders
£ 16.99
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Folding Bike Adapter, Seat Tube Reducer, Bicycle Spacer Ring, Oversized Frame Fit, Plastic Post Sleeve
【Compatible with 9mm Folding Bike Seat Tube】Designed specifically for folding bikes with a seat tube size of 33.9mm, a for perfect fit for your bike. 【Efficient Seatpost Adjustment】This sleeve shim tube reduces the seatpost diameter, allowing you to adapt it to your oversized for seat tube.
£ 4.13
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Bicycle Seat Post Tube Sleeve Shim Reducer Adapter For Seatpost Conversion Aluminum Alloy Fits Multiple Seat Tube Diameter Sizes(27.2 to 28.6)
【Seat Post Shim Tube】This MTB Bicycle Bike Seat Post Shim Tube Sleeve Reducer Seatpost Converter Adapter is made of high-quality materials, durability and practicality. 【Compatible with Various Sizes】It fits seat tubes with hole diameters of 2mm, 25.4mm, 27.2mm, 28.6mm, 30.4mm, 30.8mm, 31.6mm, 33.9mm, and 34.9mm, making it suitable for a wide range of frames. 【Aluminum Alloy Material】Constructed with lightweight and beautiful aluminum alloy material, this shim tube offers precision machining to solve the problem of mismatched frame and seat tube sizes. 【Easy Installation】Simply open the tube clamp, insert the converter into the frame seat tube, push it to the end, insert the seat tube into the converter, adjust the height, and lock the tube clamp. 【Package Included】You will receive 1 Seat Post Shim Tube, weighing approximately 24g, to for ENSURE a secure and stable connection between your bike frame and seat tube.
£ 8.31
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Honseadek Bike Seatpost Reducer 27.2 to 28.6mm, Aluminium Alloy 6061 Seat Tube Adapter Sleeve for Mountain Road Bike, Black Frame Size Converter Shim
PRECISE SIZE ADAPTATION: Converts 22.2mm seatposts to fit 25.4mm seat tubes with exact dimensional accuracy for secure, wobble-free installation.
£ 4.68
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Bnineteenteam Bike Seatpost Tube Adapter, 27.2mm to 30mm Aluminum Alloy Seatpost Tube Adapter Reducing Sleeve Bike Accessories
[7 DIFFERENT SIZE TO CHOOSE] There are 7 different size seat post tube adapter for you to choose from
£ 6.29
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SPARES2GO Bike Handle Bars Bush Reducer Stem Seat Post 24mm 26mm
SPARES2GO Bike Handle Bars Bush Reducer Stem Seat Post 24mm / 26mm for Attaching Lights
£ 6.49
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Bicycle Seatpost Shim Reducer, Seat Tube Extension Sleeve For 22.2MM To 34.9MM Conversion, 6061 Aluminum Alloy Adapter For Bike Frame And Post(33.9-34.9MM)
【Seat Tube Reducer】Constructed with and practical 6061 aluminum alloy, this seat tube reducer is built to last.
£ 4.31
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Besttoolifes Bike Seatpost Reducer Sleeve 6061 Aluminum, Cycling Frame Seatpost Extender Insert, Seat Tube Shim For Diameter Conversion, Seat Tube Reducing Shim For Bikes
【 and Practical】Made of and practical material, long-lasting use. 【】Available in various sizes, including 2 to 25.4MM, 25.4 to 27.2MM, and more, providing options to fit different seat tube sizes. 【 Material】Constructed with 6061 aluminum alloy, strength and reliability. 【Convenient Packaging】Comes in an for opp bag with a compact size of 11x4x4CM, easy to store and carry. 【Easy Installation】Simply insert the seat tube reducer into the seatpost sleeve, allowing for a secure and stable fit.
£ 4.91
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Cycling Seat Post Extension Sleeve Reducer Shim 6061 Aluminium Alloy Adapter for Bicycle Frame Tube Diameter Conversion 22.2mm to 34.9mm Assorted Sizes Compatible with MTB and Road Bikes(30.9-31.6MM)
【Seat Tube Reducer】Constructed with and practical 6061 aluminum alloy, this seat tube reducer is built to last.
£ 4.41
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Gdfnmogo Aluminium Alloy Bicycle Seatpost Shim Tube Reducer Sleeve Adapter, Bike Seat Reducer for Road and Mountain Bike Frame Conversion Ring 27.2mm(27.2-25.4mm)
【 and Reliable】Constructed with materials, long-lasting durability and reliability for your bike seat post shim tube sleeve reducer seatpost convert adapter.
£ 3.99
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ZWEquipint Bicycle Seatpost Sleeve Shim for 33.9mm Folding Bike Frame, Plastic Reducer Tube Adapter to Fit Oversized Seat Post, Black
PRECISE FIT FOR 33.9MM: Adapts standard seatposts to oversized folding bike frames for a secure, wobble-free ride
£ 4.26
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Bike Seatpost Shim Tube Adapter Reducer Sleeve for Seat Tubes 22 2 33 9mm Diameter Lightweight Aluminum Alloy Suitable for Various Bicycle Frames (31.6 to 33.9)
【Seat Post Shim Tube】This MTB Bicycle Bike Seat Post Shim Tube Sleeve Reducer Seatpost Converter Adapter is made of high-quality materials, durability and practicality.
£ 4.79
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