The 8 Best Seatpost Shims (2022 reviews)

Compared with other shims in this category, the Ganopper Seatpost Shim has a design with broader appeal. Further, it is made of high quality 6061 aluminum alloy, cnc machining cd texture surface, anti-rust and durable. Measure the inside diameter of your old clamp. Finally, the ganopper seatpost shim has fixed gear, It is designed for dropper post and has a durable design.

To sum up, many customers have used the ganopper seatpost shim for more than a few months without any complaints, and it shows no sign of giving up.

Why We Like This:

Size: 26.6 to 25.4 seatpost shim. Length: 100mm.
Good brand reputation.

Best With Fast Shipping: Fouriers Seatpost Shim

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If you often find yourself confused about appropriate and satisfactory shim, Fouriers Seatpost Shim is your end point. The fouriers seatpost shim is secure and it is constructed with good workmanship. This is a lightweight seatpost shim, It is used to make your seatpost fit into your oversized seatpost. And, this is great with suit for MTB bike, is great for mountain bikes and it works perfectly.

Finally, the fouriers seatpost shim is with fast shipping, is designed for dropper post and it would be perfect with product description.

Most customers quickly discovered that the shoes were easy to determine the correct size. And, a few say that the shim has a 1 mm ( 0.04 " ) right angle flange to retain it at the top of the seat tube. To sum up, most customers find the gym is functionally comfortable and no one questions it.

Why We Like This:

Measure the inside diameter of your old clamp.
This worked perfectly and it works great.
Good investment for the long term.

Best With Suit: Gazelle Trading Seatpost Shim

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Gazelle Trading offers a variety of shim for personal choice and yet maintains quality in all the variants. And, the shim can be converted to 27.2 seatpost diameter of 30.4 or 30.8 or 31.6 diameter, Just these little accessories can save money by buying a seat tube. Please check your bike frame seat tube outside diameter. Above all, the Gazelle Trading Seatpost Shim is great with suit for mtb bike and it is black.

Why We Like This:

Measure the inside diameter of your old clamp.
Material: aluminum alloy.inner diameter: 27.2mm/1.07inch.outer diameter: 28.6mm/1.13inch, 30.4mm/1.20inch, 30.8mm/1.21inch, 31.6mm/1.24inch.length: app.6cm/2.36inch.color: black.
Seatpost adapter shim suit for mtb bike, mountain bike, road bike etc.

Best For Light Weight: Upanbike Seatpost Shim

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate shim. The Upanbike Seatpost Shim is exactly that - it's a simple shim that hits all the right notes. The upanbike seatpost shim is suitable for many kinds of bikes, such as mountain bike, road bike, folding bike and etc. Use this seatpost shim sleeve(size 27.2mm to 30.8mm), You can use a 27.2mm seatpost on your 30.8mm bike seatpost. And, it has good anti-slip performance, is black and it is anti-slip. Most importantly, the upanbike seatpost shim is made of aluminum alloy, light weight but durable.

Why We Like This:

Size:25.4mm to 27.2mm(convert a 25.4mm seat post to fit a 27.2mm seat tube).
Ten sizes for you to choose from.
Made of aluminum alloy,light weight but durable.

Best For Good Quality: Heyous Seatpost Shim

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate shim. The hay seatpost shim is exactly that - it's a simple shim that hits all the right notes. In addition, it is black and it is suitable for mountain cycling. Make sure this fits by entering your model number. Above all, the hay seatpostshim is made of aluminum alloy material, strong, rust-proof and durable, cnc machined surface anodized.

Most customers quickly discovered that the shim fits well and works as it should. Also, a few strongly agree that the shim is bewildering all the seat post sizes these days. Obviously, this product passed the test and had very satisfied buyers eager to share their experience.

Customers say that getting a seatpost saddle rail clamp, along with shim is useful.

Why We Like This:

Package included: 1 x seat post adapter.
Suitable for mountain bike, road bike etc.
Size: 25.4mm to 27.2mm, 60*27.2mm/2.36 inches*1.07 inches (length * width).

Suitable For Mtb Bike: Yosoo Health Gear Seatpost Shim

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The Yosoo Health Gear Seatpost Shim should be able to handle its purpose and duties with ease. The yosoo health gear seatpost shim is easy to install, It is suitable for mtb bike and has a light design. This bike seat stem shim adopts a simple design, which can make your installation and disassembly more convenient and labor-saving, It's suitable for mtb bicycles and road bicycles. This bicycle seat shim is made of high - quality and lightweight aluminum alloy, and it is also made of cnc precision machining technology, which is lightweight, wear - resistant and durable.

Lastly, the yosoo health gear seatpost shim is suitable for MTB, It is black and has a durable design.

Why We Like This:

Easy to install and remove, convenient for you to use.
Lot of satisfied buyers.

Best For Wide Application: F Fityle Seatpost Shim

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F Fityle offers a variety of shim for personal choice and yet maintains quality in all the variants. The family seatpost shim includes a 1 piece bike seatpostshim adapter. Manufacturer says: We attach great importance to each feedback from customers. Further, the shim is made of premium high quality aluminum alloy material, high strength, lightweight and solid enough. Lastly, the fityle seatpost shim is designed with premium material, is suitable for mountain bike and it is made for wide use.

Why We Like This:

* [advantage] full cnc precision machining with smooth edges which won't hurt your fingers.
* [wide application] suitable for mountain bike, road bike etc.
Manufacturer says: welcome to pick and buy in our store.
Manufacturer says: we sell product with good quality and price.

Best With Shock: Outdoorsy Supplies Seatpost Shim

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Compared with other shims in this category, the Outdoorsy Supplies Seatpost Shim has a convenient design. The outdoorsy supplies seatpost shim has dampening properties that absorb shock and improve ride quality. Make sure this fits by entering your model number. Also, the shim is easy to use as solid metal shims.

Above all, the outdoorsy supplies seatpost shim is made for 27.2 mm.

Most customers think that the shoes fit nice and snug.

Why We Like This:

This does the job and it works perfectly.
Adaptor converts a 25.4 mm seat post to fit a 27.2 mm seat tube.
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