• 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
HARFINGTON Bike Seat Post Clamp 31.8mm Bike Clip Aluminum Alloy Bicycle Locking Seat Post Ring with M4 Hex Screw for 27.2 to 28.6mm Bicycle Mountain Bike Road Bike Post Tube, Silver
Click to enlarge
HARFINGTON Bike Seat Post Clamp 31.8mm Bike Clip Aluminum Alloy Bicycle Locking Seat Post Ring with M4 Hex Screw for 27.2 to 28.6mm Bicycle Mountain Bike Road Bike Post Tube, Silver
Home E-Bike Parts Seat Posts HARFINGTON Bike Seat Post Clamp 31.8mm Bike Clip Aluminum Alloy Bicycle Locking Seat Post Ring with M4 Hex Screw for 27.2 to 28.6mm Bicycle Mountain Bike Road Bike Post Tube, Silver
Lixada Universal Bicycle Carrier – Retractable Aluminum Alloy Bike Holder – Rear Post Rack – Bag Luggage Cargo Carrier
Lixada Universal Bicycle Carrier - Retractable Aluminum Alloy Bike Holder - Rear Post Rack - Bag Luggage Cargo Carrier $35.99 Original price was: $35.99.$21.69Current price is: $21.69.
Back to products
Bike Stem Riser, MTB Handlebar Riser Extender Bicycle Aluminium Alloy Head up Adapter for Mountain Bike, Road Bike, MTB, BMX
Bike Stem Riser, MTB Handlebar Riser Extender Bicycle Aluminium Alloy Head up Adapter for Mountain Bike, Road Bike, MTB, BMX $14.99

HARFINGTON Bike Seat Post Clamp 31.8mm Bike Clip Aluminum Alloy Bicycle Locking Seat Post Ring with M4 Hex Screw for 27.2 to 28.6mm Bicycle Mountain Bike Road Bike Post Tube, Silver

$5.99

Compare
Add to wishlist
Category: Seat Posts Tags: 28.6mm, 31.8mm, Alloy, Aluminum, Bicycle, Bike, Clamp, Clip, E-Bike Seat Posts, HARFINGTON, Hex, Locking, Mountain, Post, Ring, Road, Screw, Seat, Silver, Tube
Share:
  • Description
  • Reviews (0)
  • Shipping & Delivery
Description

Price: $5.99
(as of May 26, 2025 01:37:34 UTC – Details)


Product Description

LOGOLOGO

bike seat post clampbike seat post clamp

Bike Seat Post Clamp – for Bicycle Mountain Bike Road Bike Post Tube

The bicycle seat post clamp is a great accessory for any style of bicycle, and the more comfortable and efficient seat post clamp is loved by more cycling enthusiasts. Our seat post clamps are suitable for all types of bicycles, including road bikes, mountain bikes, folding bikes, etc.There are three sizes for you to choose from, the 28.6mm clamp is suitable for seat post diameters of 25.4mm, the 31.8mm clamp is suitable for seat post diameters of 27.2/28.6mm. and the 34.9mm clamp is suitable for seat post diameters of 30.4/30.8/30.9/31.6mm.You need to confirm the seat post label or seat post size before purchasing the seat post clamp, but the seat tube wall thickness varies, you can first measure the actual outer diameter of the frame seat tube, and finally comprehensively choose the appropriate bicycle seat post clamp.

Bike Post clampBike Post clamp

Features

The bicycle seat post clamp is made of lightweight high-strength aluminum alloy, which has a smooth and exquisite appearance, wear-resistant and practical. Aluminum alloy has good corrosion resistance and can maintain a smooth and durable surface for a long time in indoor and outdoor environments. In addition, the surface of our seat post clamp is anodized, which further increases its surface hardness, is not easy to fade, maintains beauty, and extends its service life.Easy to install, just tighten it with a 4mm hexagonal wrench, and the seat post height can be easily adjusted. It is not only lightweight, but also durable, and the sturdy fixing bolt ensures double sturdiness and stability, providing a secure fit for your seat post, preventing any sliding or movement during riding, and using this reliable clamp to enjoy a stable and comfortable riding experience.

Add to Cart

Add to Cart

Add to Cart

Add to Cart

Add to Cart

Add to Cart

Customer Reviews

4.4 out of 5 stars 2

4.4 out of 5 stars 2

5.0 out of 5 stars 1

4.0 out of 5 stars 1

5.0 out of 5 stars 2

4.2 out of 5 stars 6

Price

$7.99$7.99 $7.99$7.99 $7.99$7.99 $6.99$6.99 $5.99$5.99 $5.99$5.99

Size
no data
no data
no data
no data
no data
no data

Size – Clamp Inner Diameter: 31.8mm / 1.25″; Seat Post Diameter: 27.2mm / 1.07″ + 28.6mm / 1.13″; Color: Silver; Package Includes: 1 x M4 Hex Screw Locking Bicycle Seat Post Clamp
Material – The bicycle seat post clamp is made of lightweight high-strength aluminum alloy, which has a smooth and exquisite appearance, wear-resistant and practical. Aluminum alloy has good corrosion resistance and can maintain a smooth and durable surface for a long time in indoor and outdoor environments. In addition, the surface of our seat post clamp is anodized, which further increases its surface hardness, is not easy to fade, maintains beauty, and extends its service life.
Feature – Our bicycle seat post clamp is easy to install, just tighten it with a 4mm hexagonal wrench, and the seat post height can be easily adjusted. It is not only lightweight, but also durable and lightweight, and the sturdy fixing bolt ensures double sturdiness and stability, providing a secure fit for your seat post, preventing any sliding or movement during riding, and using this reliable clamp to enjoy a stable and comfortable riding experience.
Application – he bicycle seat post clamp is a great accessory for any style of bicycle, and the more comfortable and efficient seat post clamp is loved by more cycling enthusiasts. Our seat post clamps are suitable for all types of bicycles, including road bikes, mountain bikes, folding bikes, etc.
Note – Our seat post clamp has three sizes for you to choose from, the 28.6mm clamp is suitable for seat post diameters of 25.4mm, the 31.8mm clamp is suitable for seat post diameters of 27.2/28.6mm. and the 34.9mm clamp is suitable for seat post diameters of 30.4/30.8/30.9/31.6mm.You need to confirm the seat post label or seat post size before purchasing the seat post clamp, and finally choose the appropriate bicycle seat post clamp.

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “HARFINGTON Bike Seat Post Clamp 31.8mm Bike Clip Aluminum Alloy Bicycle Locking Seat Post Ring with M4 Hex Screw for 27.2 to 28.6mm Bicycle Mountain Bike Road Bike Post Tube, Silver” 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
-25%
Aeibxiy Bike SeatPost 27.2mm 30.9mm 31.6mm Aluminum Alloy 350mm Bicycle Seat Post for Mountain Road Bikes BMX
Compare

Aeibxiy Bike SeatPost 27.2mm 30.9mm 31.6mm Aluminum Alloy 350mm Bicycle Seat Post for Mountain Road Bikes BMX

Seat Posts
$15.99 Original price was: $15.99.$11.99Current price is: $11.99.
Price: (as of – Details) Size: Diameter: 27.2mm 30.9mm 31.6mm; Length: 350 mm (13.8inch)Material: made of high strength aluminum alloy,
Add to wishlist
Buy Now
Quick view
E-Force AL, Seatpost
Compare

E-Force AL, Seatpost

Seat Posts
$6.90
Price: (as of – Details) Product Description EVO Kalloy 400mm Bike Seat Stem Post The replacement bicycle seat post extension
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
Suspension Seatpost 27.2 30.4 30.9 31.6 Bike Seat Posts with Suspension 40mm Travel Bicycle Seat Shock Absorber Aluminum Tube for E Bike MTB BMX Road City Bike Replacement Component Parts
Compare

Suspension Seatpost 27.2 30.4 30.9 31.6 Bike Seat Posts with Suspension 40mm Travel Bicycle Seat Shock Absorber Aluminum Tube for E Bike MTB BMX Road City Bike Replacement Component Parts

Seat Posts
$25.99
Price: (as of – Details) From the brand Focus on optimize cycling experience for every cycling lovers! Ebike Hydrualic Disc
Add to wishlist
Buy Now
Quick view
TRIWONDER Bike Seat Post 25.4mm 27.2mm 28.6mm 30.4mm 30.8mm 31.6mm Aluminum 350mm Length Alloy Saddle Pole Bike Seatpost Seat Tube Bicycle Seat Post
Compare

TRIWONDER Bike Seat Post 25.4mm 27.2mm 28.6mm 30.4mm 30.8mm 31.6mm Aluminum 350mm Length Alloy Saddle Pole Bike Seatpost Seat Tube Bicycle Seat Post

Seat Posts
$7.99
Price: (as of – Details) From the brand About TRIWONDER Trying to broaden users’ horizon and enlarge the latitude of
Add to wishlist
Buy Now
Quick view
UPANBIKE Bike Seat Post Aluminum Alloy Length 350mm 400mm φ25.4/27.2/28.6/30.4/30.9/31.6mm Black for Mountain Bike Road Bicycle
Compare

UPANBIKE Bike Seat Post Aluminum Alloy Length 350mm 400mm φ25.4/27.2/28.6/30.4/30.9/31.6mm Black for Mountain Bike Road Bicycle

Seat Posts
$7.50
Price: (as of – Details) Product Description Important notice: 1. This is for a seat post only, the saddle clamp
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

    © 2026 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