Top 7 31.8mm to 28.6mm Shim – Bike Stems

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1. Fouriers

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Fouriers Alloy Fork Shim 1 1/4" to 1 1/8" Steerer Tube Adapter Stem Reduction 31.8mm to 28.6mm

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Fouriers #ad - Length: 38mm. Convert 31. 8mm to 28. 6mm or 35mm to 31. 8mm. Weight: 15g. Super light material AL6061.
BrandFouriers #ad
ManufacturerFouriers #ad
Part NumberAC-A001
Model9133864

2. aternee

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Aternee Bike Alloy Stem Fork Shim Fork Steerer Tube Adapter Reducer 28.6mm to 31.8mm

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aternee #ad - Made of aluminium alloy material, lightweight and durable. Stem fork tube adapter coverts 28. 6mm to 31. 8mm. Easy to install and use. Suitable for bike, mountain bike, road bike, etc. Use this handlebar sleeve adapter, can install on 31. 8mm bike stem.
Brandaternee #ad
Manufactureraternee #ad
Part Numberf91d2c4874bf997cc730a8c2d56bcd80

3. simhoa

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Simhoa Aluminium Alloy Bike Handlebar Shim 28.6mm to 31.8mm Reducer Stem Adaptor

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simhoa #ad - Small size, easy to install and use. Converts 31. 8mm to 28. 6mm. This reducer allows you to use smaller diameter standard size handlebars in an oversize stem. If your bike handlebar is 28. 6mm but the stem installation is 31. 8mm, then add the handlebar conversion chip can be installed to install it in 31. 8 stem. Made of aluminium alloy material, lightweight and durable.
Brandsimhoa #ad
Manufacturersimhoa #ad
Part Number90da720ba477f9a4a1bfe78366d488ff

4. Tongina

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Tongina Bicycle Handlebar Shim 28.6mm to 31.8mm Stem for Fixed Gear MTB Road Bike

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Tongina #ad - Use this handlebar sleeve adapter ring, can install on 31. 8mm bike stem. Made of aluminium alloy material, lightweight and durable. Easy to install and use. Suitable for mtb bike, road bike, mountain bike, etc. Stem fork tube adapter coverts 28. 6mm to 31. 8mm.
BrandTongina #ad
ManufacturerTongina #ad
Part Number087cceb80892127cf67756cc6790b35b

5. TLBBJ

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TLBBJ Bicycle Transmission 2pcs 28.6mm to 31.8mm 31.8mm to 34.9mm Shim Adapter Bicycle Bike Front Derailleur Conversion Shim Bicycle Parts Color : NO.1

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TLBBJ #ad - Easy installation. Small size, easy installation. Or the 28. 6mm diameter frame tube into 31. 8mm. Great ability to withstand high and low temperatures. Suitable for most mountain bike, road bike, and so on. The conversion shim is lightweight and durable. A good replacement for the old or damaged front derailleur adapter. Material: aluminum alloy. 31. 8mm diameter frame can be converted into 34. 9mm frame, so that you can install a diameter of 34. 9mm front dial ring.
BrandTLBBJ #ad
ManufacturerTLBBJ #ad
Weight0.44 Pounds
Part NumberTLBBJ

6. HELYZQ

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HELYZQ Bicycle Stem Conversion Sleeve Adapter 31.8mm to 28.6mm Reducer Front Fork MTB Fixed Gear Mountain Bike Shim Variable Ring

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HELYZQ #ad - Well, if your stem is not fit for your front fork, then this conversion sleeve will help you. Made from aluminum alloy, it is high intensity and tough. Before order. Durable, rust resistance. This type of sleeve is for converting 31. 8mm to 28. 6mm, please confirm it whether fits your bicycle.
BrandHELYZQ #ad
ManufacturerHELYZQ #ad
Part NumberHELYZQ

7. LoveinDIY

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LoveinDIY Handlebar Shim 28.6mm to 31.8mm Stem for Fixed Gear MTB Road Bike

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LoveinDIY #ad - This reducer allows you to use smaller diameter standard size handlebars in an oversize stem. Converts 31. 8mm to 28. 6mm. Small size, easy to install and use. If your bike handlebar is 28. 6mm but the stem installation is 31. 8mm, then add the handlebar conversion chip can be installed to install it in 31. 8 stem. Made of aluminium alloy material, lightweight and durable.
BrandLoveinDIY #ad
ManufacturerLoveinDIY #ad
Part Number36d4a985dadda9fdd3231a5fb520c52b