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Aluminum Alloy Bicycle Seatpost 100mm

Free shipping on orders over $29.99

$9.99

$ 4 .99 $4.99

In Stock

About this item

  • Feature:Use this seatpost adapter, 25.4 mm Seat Post can be converted to 26.6/26.4/26.8 seatpost,seatpost shim can help you change the bicycle seat tube outer diameter to meet your needs
  • Material: 25.4 Bike Seatpost shim is made of high quality 6061 aluminum alloy, CNC machining CD texture surface ,anti-rust and durable
  • Size: 26.6 to 25.4 seatpost shim. Length: 100mm.
  • Tips: Please check your bike frame seat tube outside diameter. Measure the inside diameter of your old clamp. Or measure the outside diameter of your seat tube (on your bike frame). Then make a right choice. - - -Because of hollow design,In the process of transportation are squeezed may be out of shape,Please kindly exchange one
  • Application: seatpost reducing sleeve shim matches well with most bicycles, such as MTB ,BMX ,Fixed Gear bike,mountain bike, road bike, city bike and more, you can easily adjust the diameter of the bicycle seat post, eliminating the trouble of repurchasing the bike seatpost.



flash
Reviewed in the United States on February 7, 2025
works like it should
Brian F.
Reviewed in the United States on September 30, 2024
I bought the 31.6 to 33.9mm adapter to use with a 31.8mm seatpost. As you might expect, it didn't work due to tight/accurate tolerances. I spent about 30 minutes with a Dremel and a 80grit flap wheel removing material until it fit. (.2mm is bigger than you think!) Problem solved.
Bonesquat
Reviewed in the United States on July 29, 2024
Allowed sun post seat thing. Works perfectly. Nice.
Esteban
Reviewed in the United States on June 17, 2024
perfect fit, great product.
Old Coot Product Reviews
Reviewed in the United States on January 6, 2024
At first I thought this thing was made out of plastic, but it's made out of some type of metal or aluminum, or some kind of poly something or other.It's solid, and does the trick. I bought this to use with a Kinect suspension seat post. And it worked like a charm on my ebike.Use some graphite to keep your post from sliding down into the tube. And you should be fine.
Carlos A.
Reviewed in Mexico on September 7, 2023
Llevaba semanas queriendo buscar la medida y material idóneo, es resistente y de buen material.
Ed Thompson
Reviewed in the United States on September 11, 2023
This makes the fit VERY tight. I had to use grease to get the seatpost to fit. But, overall, thats probably a good thing.
J. W. MN.
Reviewed in the United States on July 6, 2023
I needed a 30.9mm to 34.9mm sleeve for my Specialized Como 3 bike. The most appropriate shock absorbing post was not available in the 34.9mm native size so I needed an adaptor and chose this one based on the reviews and pricing. The sleeve is an anodized precision, machined aluminum unit that has a slit along the entire length. There is a retaining ring on the top of the sleeve and the surface has a scored surface that helps retain a grip around the inside and outside of the sleeve. I found that a light coating of lithium grease on the outside of both the sleeve and the shock post allowed the sleeve and post to be more easily inserted into the bike frame. This is a very high quality adaptor and was better than I expected. It works well and is precision made.
Terry
Reviewed in Canada on March 24, 2023
Quality product know you size.
Luis A Carreño
Reviewed in Mexico on January 25, 2023
justo lo que pedi, buena calidad
paul r.
Reviewed in Australia on September 19, 2022
Perfect fit
Jean-Marc Clement
Reviewed in Canada on May 18, 2022
Fit as it says. Good quality