Top 9 30.9 to 31.6 Seatpost Shim – Bike Seat Posts

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1. GANOPPER

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GANOPPER Seatpost Shim 31.6 to 30.9 Bicycle Seat Post Adapter Reducing Sleeve Shim for Mountain Bike Seat Post Tube Shim 30.9-31.6mm

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GANOPPER #ad - Feature:use this bike post shim, 309 id seat post shim can be converted to 31. 6 bike seat post, bike seatpost shim can help you change the bicycle seat tube outer diameter to meet your needs.

Because of hollow design,In the process of transportation are squeezed may be out of shape,Please kindly exchange one. Or measure the outside diameter of your seat tube on your bike frame. Measure the inside diameter of your old clamp. Material: bicycle seatpost shim is made of high quality 6061 aluminum alloy, CNC machining CD texture surface, anti-rust and durable. Then make a right choice.

Length: 100mm. Application: bicycle seatpost reducer matches well with most bicycles, such as MTB, you can easily adjust the diameter of the bicycle seat post, road bike, BMX, mountain bike, and more, eliminating the trouble of repurchasing the bike seatpost. Tips: please check your bike frame seat tube outside diameter. Size: 31. 6 to 309 seatpost shims.
BrandGANOPPER #ad
ManufacturerGANOPPER #ad
Part NumberGNPSM309316

2. Fouriers

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Fouriers Seatpost Shim 31.6mm to 30.9mm Bicycle Seat Post Adapter Reducing Sleeve Shim for Mountain Bike Seat Post Tube Shim 30.9-31.6mm

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Fouriers #ad - Material: al6061-T6. Weight: 8g/pcs. Size: 31. 6mm to 309mm. This is a lightweight seatpost shim, It is Used to Make Your Seatpost Fit into Your Oversized Seatpost. Length: 90mm.
BrandFouriers #ad
ManufacturerFouriers #ad
Part NumberAC-S007

3. Fouriers

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Fouriers Bicycle Seat Tube Adapter Bike Seatpost Reducer Shim 27.2mm 30.9mm 31.6mm Ø31.6mm xØ30.9mm

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Fouriers #ad - Spec: od Ø31. 6mm x id Ø309mm. Material: aluminum alloy, AL6061-T6. Weight: 9g. Length:90mm. Color: black.
BrandFouriers #ad
ManufacturerFouriers #ad
Part NumberAC-S007

4. freneci

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Black, freneci Alloy Seat Post Bushing Bike Bicycle Seatpost Size Reducer Enlarger Shim Sleeves 30.9mm to 31.6mm

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freneci #ad - High quality aluminium alloy material, high strength, lightweight and solid enough. To change your seat post size easily with this bushing without changing seatpost. Suitable for mtB bike, mountain bike, road bike etc. Full cnc precision machining with smooth edges which won't hurt your finger. Custom sleeve to space 309 or 31. 6 seatpost to larger or smaller seat tubes.
Brandfreneci #ad
Manufacturerfreneci #ad
Part Numberb2351550cb50ee86f38aac5298d607c4

5. TIANKUO

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TIANKUO Road Bike Strong Compatibility Post Tube Adapter Mountain Bike Bicycle Seatpost Sleeve Seat Post Shim Seat Tube Reducer30.9 to 31.6,Black

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TIANKUO #ad - Material:aluminum alloy. Package included:1pc x Bicycle Seatpost. Quantity: 1pc. Size:100*27. 2*309mm. Color:Anodized black.
BrandTIANKUO #ad
ManufacturerTIANKUO #ad
Part NumberAMIKH0775LUS

6. Baitu

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Baitu Bicycle Post Tube Adapter Seat Post Shim,Alloy Bike Seatpost Sleeve Reducing Sleeve Seat Tube Reducer Saddle Tube Conversion30.9 to 31.6,Black

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Baitu #ad - Easy to install, just a few seconds to install, no other tools needed, provide convenience for your use. Heat treatment to guarantee high-strength, lightweight and durable working life. Different size: 17 specifications for your choice: 22. 2mm to 25. 4mm, 31. 6mm to 33. 9mm, 27. 2mm to 304mm, 27. 2mm to 33. 9mm, 27. 2mm to 31. 6mm, 27. 2mm to 309mm, 28. 6mm to 31. 8mm, 33. 9mm to 34. 9mm, 309mm to 31. 6mm, 25. 4mm to 28. 6mm, 27. 2mm to 28. 6mm, 27. 2mm to 300mm, 31. 6mm to 36mm, 25. 4mm to 30
BrandBaitu #ad
ManufacturerBaitu #ad
Part NumberAMILL0775LUS

7. CUTICATE

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Silver, CUTICATE Bike Seat Post Adapter Shim Size Reducing Bushing Pipe 30.9mm to 31.6mm

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CUTICATE #ad - To change your seat post size easily with this bushing without changing seatpost. Full cnc precision machining with smooth edges which won't hurt your finger. Suitable for mtB bike, mountain bike, road bike etc. Custom sleeve to space 309 or 31. 6 seatpost to larger or smaller seat tubes. High quality aluminium alloy material, high strength, lightweight and solid enough.
BrandCUTICATE #ad
ManufacturerCUTICATE #ad
Part Number323b12976bc0f2df0bc9f9a5ba3cf154

8. Generic

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Bike Seatpost Sleeve Shim 30.9mm to 31.6mm Size Convert Conversion Shim Bushing, Silver

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Generic #ad - To change your seat post size easily with this bushing without changing seatpost. Custom sleeve to space 309 or 31. 6 seatpost to larger or smaller seat tubes. Full cnc precision machining with smooth edges which won't hurt your finger. High quality aluminium alloy material, high strength, lightweight and solid enough. Suitable for m-t-B bike, mountain bike, road bike etc.
BrandGeneric #ad
ManufacturerGeneric #ad
Part Number510b06bc229b5ffe7cb25da8b4a5e50f

9. Usdepant

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27.2mm to 30.4mm/30.8mm/31.6mm 27.2mm to 30.4mm, Usdepant Bicycle Seat Post Shim

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Usdepant #ad - Package includes: 1 x Seat Post Tube without retail package. Please check your bike frame seat tube outside diameter. Material: aluminum alloy.

Inner diameter is 27. 2mm/1. 07inch, 3 type of outer diameter to choose: 304mm/1. 20inch; 308mm/1. 21inch; 31. 6mm/1. 24inch. Length: app. 6cm/2. 36inch. Inner diameter: 27. 2mm/1. 07inch. Then make a right choice. Measure the inside diameter of your old clamp. Or measure the outside diameter of your seat tube on your bike frame. Can be converted to 27. 2 seatpost diameter of 304 or 308 or 31. 6 diameter, just this little accessories can save money to buy a seat tube.
BrandUsdepant #ad
ManufacturerUsdepant #ad
Weight0.07 Pounds
Part NumberUsdepant_2S11183