• English
    • Deutsch
    • French
    • Requires WPML plugin
  • Country
    • United States (USD)
    • Deutschland (EUR)
    • Japan (JPY)
FREE SHIPPING FOR ALL ORDERS OF $150
  • Newsletter
  • Contact Us
  • FAQs
Select category
  • Select category
  • E-Bike Accessories
    • Bags
    • Clothing
    • Fenders
    • Helmets
    • Lights
    • Locks
    • Racks
    • Tires
    • Tools
    • Tubes
  • E-Bike Parts
    • Batteries
    • Brakes
    • Cassettes
    • Chains
    • Controllers
    • Derailleurs
    • Displays
    • Handlebars
    • Motors
    • Seat Posts
    • Seats
    • Shifters
    • Stems
  • E-bikes
    • Aventon
    • Fiido
    • Other popular brands
    • Rad Power Bikes
    • Ride1Up
Wishlist
0 Compare
0 items $0.00
Menu
0 items $0.00
Browse Categories
  • E-bikes
    • Aventon
    • Fiido
    • Rad Power Bikes
    • Ride1Up
    • Other popular brands
  • E-Bike Accessories
    • Bags
    • Clothing
    • Fenders
    • Helmets
    • Lights
    • Locks
    • Racks
    • Tires
    • Tools
    • Tubes
  • E-Bike Parts
    • Batteries
    • Brakes
    • Cassettes
    • Chains
    • Controllers
    • Derailleurs
    • Displays
    • Handlebars
    • Motors
    • Seat Posts
    • Seats
    • Shifters
    • Stems
  • Resources
    • E-Bike Maintenance Tips
    • E-Bike Laws and Regulations
    • E-Bike Community Forums
    • E-Bike Buying Guide
    • E-Bike Reviews
    • FAQ
  • Home
  • Shop
  • Blog
  • About Us
  • Contact Us
Alloy Bike Seatpost Shim, 100mm Length Aluminum Bicycle Reducing Sleeve Seat Post Tube Adapter, Diameter Switch 25.4-27.2mm; 27.2-28.6/30.0/30.4/30.9/31.6mm; 30.9-31.6mm.
Click to enlarge
Alloy Bike Seatpost Shim, 100mm Length Aluminum Bicycle Reducing Sleeve Seat Post Tube Adapter, Diameter Switch 25.4-27.2mm; 27.2-28.6/30.0/30.4/30.9/31.6mm; 30.9-31.6mm.
Home E-Bike Parts Seat Posts Alloy Bike Seatpost Shim, 100mm Length Aluminum Bicycle Reducing Sleeve Seat Post Tube Adapter, Diameter Switch 25.4-27.2mm; 27.2-28.6/30.0/30.4/30.9/31.6mm; 30.9-31.6mm.
Kids Bike Saddle for 14 16 18 20 24 Inch Child Seat Children Seat for Boys Girls Bicycles
Kids Bike Saddle for 14 16 18 20 24 Inch Child Seat Children Seat for Boys Girls Bicycles $14.99
Back to products
Gdrasuya10 Electric Bike Conversion Kit 700C 27.5” Electric Bicycle Front Wheel E-Bike Conversion Kit with LCD 48V 1200W 34 Mile/h E-Bike Bike Bicycle Cycling Power Hub Motor Conversion Kit
Gdrasuya10 Electric Bike Conversion Kit 700C 27.5'' Electric Bicycle Front Wheel E-Bike Conversion Kit with LCD 48V 1200W 34 Mile/h E-Bike Bike Bicycle Cycling Power Hub Motor Conversion Kit $209.99

Alloy Bike Seatpost Shim, 100mm Length Aluminum Bicycle Reducing Sleeve Seat Post Tube Adapter, Diameter Switch 25.4-27.2mm; 27.2-28.6/30.0/30.4/30.9/31.6mm; 30.9-31.6mm.

$9.99

Compare
Add to wishlist
Category: Seat Posts Tags: 100mm, 25.427.2mm, 27.228.630.030.430.931.6mm, 30.931.6mm, Adapter, Alloy, Aluminum, Bicycle, Bike, Diameter, E-Bike Seat Posts, Length, Post, Reducing, Seat, Seatpost, Shim, Sleeve, Switch, Tube
Share:
  • Description
  • Reviews (0)
  • Shipping & Delivery
Description

Price: $9.99
(as of Mar 21, 2025 23:37:12 UTC – Details)


Product Description

bianjingqibianjingqi

Feature:

made of high quality 6061 aluminum alloyCNC machining CD texture surface, non-sliplight weight and portable, anti-rust and durableEasy installment , do not need any tool100mm long in length , increase stability

bianjingqibianjingqi

bianjingqibianjingqi

How to select the Correct Size For instance:

27.2mm(ID) is your original seatpost diameter30.0mm(OD) is your Seat tube mouth diameterSo you select 27.2mm to 30.0mm

Then you will make the 27.2mm seat post suitable for the 30.0mm bicycle seat tube mouth.

logo-350*175logo-350*175 We hope “BNVB“ products will improve your bike riding happiness

BNVB is one Bike and cycling equipment brand, But now it is a new and little-known brand,We hope we will do better, and hope more people will like our product, (of course, hope your bike also will like our product)Needless to say, let the quality and service speak

Easy to Instal

No need installatin tools

open the seatpost clampInsert the adapter and put the seatpost inadjust the seatpost insert deepthlock the seatpost clamp

weightweight

Length: 100mm, Guarantee you seatpost insert safe.
Material: Made of high quality 6061 aluminum alloy, CNC machining CD texture surface, Light weight, anti-rust and durable.
Easy Install: Easy to install and remove, Convenient for you to Switch Seatpost in need.
Suit for MTB bike, mountain bike, road bike etc.
Note: Please measure the outside diameter of your seatpost, (or check the size marks on the seatpost). Then measure your bike frame seat tube inside diameter. Then choose right Size.

Customers say

Customers find the bicycle seatpost to be a good quality product that fits well and functions properly. They appreciate its precise machined construction and smooth installation into the frame. Many consider it a good value for the price. However, some customers feel the plastic material feels cheap.

AI-generated from the text of customer reviews

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “Alloy Bike Seatpost Shim, 100mm Length Aluminum Bicycle Reducing Sleeve Seat Post Tube Adapter, Diameter Switch 25.4-27.2mm; 27.2-28.6/30.0/30.4/30.9/31.6mm; 30.9-31.6mm.” Cancel reply

Your email address will not be published. Required fields are marked *

Shipping & Delivery

Related products

AARON – Shock Suspension seatpost – Aluminum Bike seat Post for E-Bike, MTB, – 1.1″, 27.2 – 30,9 – 31,6 mm Diameter, 13.8″ (350mm) Length
Compare

AARON – Shock Suspension seatpost – Aluminum Bike seat Post for E-Bike, MTB, – 1.1″, 27.2 – 30,9 – 31,6 mm Diameter, 13.8″ (350mm) Length

Seat Posts
$29.99
Price: (as of – Details) Product Description The video showcases the product in use.The video guides you through product setup.The
Add to wishlist
Buy Now
Quick view
Bike Seatpost Length 400mm Bicycle Seat Post Aluminum Alloy for Mountain Bike Road Bike Fixed Gear BMX
Compare

Bike Seatpost Length 400mm Bicycle Seat Post Aluminum Alloy for Mountain Bike Road Bike Fixed Gear BMX

Seat Posts
$8.92
Price: (as of – Details) Length:15.7″(400mm).Diameter: 25.4mm 27.2mm 28.6mm 30.4mm 30.9mm 31.6mm; Thickness: 0.08″(2mm) 【PAY ATTENTION】Saddle clamp is not included.Please
Add to wishlist
Buy Now
Quick view
Bynccea Bike Seat Post 27.2mm 30.9mm 31.6mm Bicycle SeatPost 400mm for Mountain Bike Road Bikes MTB BMX
Compare

Bynccea Bike Seat Post 27.2mm 30.9mm 31.6mm Bicycle SeatPost 400mm for Mountain Bike Road Bikes MTB BMX

Seat Posts
$16.99
Price: (as of – Details) SpecificationsMaterial:6061 T6 Aluminum alloy.Color:black/red/blue.Weight:about 360~380g.Length:400mm.Tube Outter diameter:27.2mm,30.9mm,31.6mm. Mountain Bike Seatpost Size: 27.2mm/30.9mm/31.6mm,Total length: 400mm.Pay Attention
Add to wishlist
Buy Now
Quick view
REDSHIFT ShockStop Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes
Compare

REDSHIFT ShockStop Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes

Seat Posts
$183.99
Price: (as of – Details) From the brand RIDE FARTHER, FASTER, AND MORE COMFORTABLY – The ShockStop bicycle suspension seatpost
Add to wishlist
Buy Now
Quick view
SAFORTBIKES Suspension Seatpost for eBike ,27.2/28.6/30.0/30.4/30.8/30.9/31.6/31.8/33.9/34.9,365mm/580mm
Compare

SAFORTBIKES Suspension Seatpost for eBike ,27.2/28.6/30.0/30.4/30.8/30.9/31.6/31.8/33.9/34.9,365mm/580mm

Seat Posts
$84.87
Price: (as of – Details) From the brand Lightweight TPU Tubes Ridenow Cycling Products Inkesky Tire & Tubes Inkesky Brake
Add to wishlist
Buy Now
Quick view
Steel Alloy Bicycle Seat Post with Support, 360mm Bicycle SeatPost Multi-Size Bicycle Parts
Compare

Steel Alloy Bicycle Seat Post with Support, 360mm Bicycle SeatPost Multi-Size Bicycle Parts

Seat Posts
$22.99
Price: (as of – Details) Total length: 350mmApplicable diameter: 25.4mmAdjustable length: 75mmMaterial: steel alloyWeight: 457g Customers say Customers like the
Add to wishlist
Buy Now
Quick view
Steel Alloy Bike Seat Posts, 350mm Bicycle Seat Post Multi-Size Bicycle Parts
Compare

Steel Alloy Bike Seat Posts, 350mm Bicycle Seat Post Multi-Size Bicycle Parts

Seat Posts
$19.99
Price: (as of – Details) Total length: 350mmApplicable diameter: 25.4mmAdjustable length: 170mmMaterial: steel alloyWeight: 345g
Add to wishlist
Buy Now
Quick view
Zoom Bike Suspension Seatpost:27.2 / 30.9 / 31.6 x 350 mm Shock Absorber Damper Bicycle Seat Post for E-Bike MTB BMX
Compare

Zoom Bike Suspension Seatpost:27.2 / 30.9 / 31.6 x 350 mm Shock Absorber Damper Bicycle Seat Post for E-Bike MTB BMX

Seat Posts
$21.99
Price: (as of – Details) Product Description REDUCE FATIGUE AND INCREASE EFFICIENCY-Experience unparalleled comfort with the ZOOM Bike Suspension Seatpost
Add to wishlist
Buy Now
Quick view

    Free Shipping.

    No one rejects, dislikes.

    24/7 Support.

    It has survived not only.

    Online Payment.

    All the Lorem Ipsum on.

    Fast Delivery.

    Many desktop page now.

    • PRODUCTS
      • Bags
      • Clothing
      • Fenders
      • Helmets
      • Lights
    • PRODUCTS
      • Locks
      • Brakes
      • Batteries
      • Tires
      • Tools
    • POST BLOG
      • E-Bike Buying Guide
      • E-Bike Community Forums
      • E-Bike Laws and Regulations
      • E-Bike Maintenance Tips
    • USEFUL LINKS
      • Privacy Policy
      • About Us
      • Contact Us
      • Terms And Condition
      • Affiliate Disclaimer

    AVAILABLE ON:

    Join our newsletter!

    Will be used in accordance with our Privacy Policy

    © 2025 eriderdeals.com. All rights reserved

    • Menu
    • Categories
    • E-bikes
      • Aventon
      • Fiido
      • Rad Power Bikes
      • Ride1Up
      • Other popular brands
    • E-Bike Accessories
      • Bags
      • Clothing
      • Fenders
      • Helmets
      • Lights
      • Locks
      • Racks
      • Tires
      • Tools
      • Tubes
    • E-Bike Parts
      • Batteries
      • Brakes
      • Cassettes
      • Chains
      • Controllers
      • Derailleurs
      • Displays
      • Handlebars
      • Motors
      • Seat Posts
      • Seats
      • Shifters
      • Stems
    • Resources
      • E-Bike Maintenance Tips
      • E-Bike Laws and Regulations
      • E-Bike Community Forums
      • E-Bike Buying Guide
      • E-Bike Reviews
      • FAQ
    • Home
    • Shop
    • Blog
    • About Us
    • Contact Us
    Shopping cart
    Close
    Shop
    Wishlist
    0 items Cart
    My account