---
product_id: 361668330
title: "TRIWONDER Bicycle Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bike Quick Release Clamp"
brand: "triwonder"
price: "94 kr"
currency: DKK
in_stock: true
reviews_count: 13
category: "Triwonder"
url: https://www.desertcart.dk/products/361668330-triwonder-bicycle-seat-post-clamp-31-8mm-34-9mm-aluminum
store_origin: DK
region: Denmark
---

# Durable aluminum alloy build Quick-release for fast adjustments Precision-fit sizes 28.6/31.8/34.9mm TRIWONDER Bicycle Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bike Quick Release Clamp

**Brand:** triwonder
**Price:** 94 kr
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Lock in your ride, unlock your freedom!

## Quick Answers

- **What is this?** TRIWONDER Bicycle Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bike Quick Release Clamp by triwonder
- **How much does it cost?** 94 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/361668330-triwonder-bicycle-seat-post-clamp-31-8mm-34-9mm-aluminum)

## Best For

- triwonder enthusiasts

## Why This Product

- Trusted triwonder brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight Yet Rugged:** Crafted from premium aluminum alloy, combining featherlight 22g weight with exceptional durability and anti-wear resistance.
- • **Sleek Minimalist Design:** Matte black finish with a smooth, refined look that complements any modern bike aesthetic, elevating your ride’s style.
- • **Universal Compatibility:** Fits most aluminum frame bikes including mountain and road bikes, making it the go-to clamp for serious cycling pros.
- • **Effortless Quick Release:** Secure your seatpost in seconds with a smooth quick-release mechanism—no tools needed for on-the-go adjustments.
- • **Tailored Fit for Every Ride:** Available in multiple diameters (28.6, 31.8, 34.9mm) to perfectly match your bike frame and seatpost for zero slip.

## Overview

The TRIWONDER Bicycle Seat Post Clamp is a precision-engineered, quick-release clamp made from high-quality aluminum alloy. Available in three key sizes (28.6mm, 31.8mm, 34.9mm), it ensures a secure, slip-free fit for most aluminum frame bikes. Weighing just 22 grams, it combines lightweight durability with a sleek black finish, making it an essential upgrade for cyclists seeking reliable performance and effortless seat adjustments on the go.

## Description

desertcart.com : TRIWONDER Bicycle Seat Post Clamp Bike Quick Release Clamp 28.6mm 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip (Black - 34.9mm) : Sports & Outdoors

Review: Good value & high quality - Perfect fir for 2015 Speacilized Rock Hopper. Holds tight.
Review: Works fine… - Just the right size to use on 30.4 seat post to keep it from slipping. I use it above the quick release clamp on the seat post frame tube for positive positioning if seat is removed and replaced.

## Features

- Material: The bicycle seatpost clamp is made of high-quality aluminum alloy, with a smooth and exquisite appearance, anti-wear and practical
- 28.6 Clamp: 28.6mm Bicycle Quick Release seat clamp is suitable for 27.2mm bicycle seatposts
- 34.9 Clamp: 34.9mm Bicycle seatpost clamp is suitable for 30.8 / 31.6mm bicycle seatposts
- Installation: Simply secure with a 4mm Allen (hex) head key, the seat post clamp fits for most aluminum frame bikes, like mountain bike, road bike, etc
- Note: This bicycle seatpost clamp should match the diameter of the seat tube on your frame and not the diameter of the seatpost itself

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0929275KS |
| Best Sellers Rank | #25,436 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 in Bike Seat Clamps |
| Brand | TRIWONDER |
| Brand Name | TRIWONDER |
| Color | 02 Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,791) |
| Date First Available | April 12, 2021 |
| Item Dimensions LxWxH | 3.15 x 5.12 x 0.79 inches |
| Item Package Dimensions L x W x H | 3.03 x 2.01 x 0.91 inches |
| Item Weight | 22 Grams |
| Item dimensions L x W x H | 3.15 x 5.12 x 0.79 inches |
| Manufacturer | TRIWONDER |
| Material | Aluminum |
| Package Weight | 0.02 Kilograms |
| Part Number | OS091112 |
| Size | 34.9mm |
| Style | Classic |

## Product Details

- **Brand:** TRIWONDER
- **Color:** 02 Black
- **Item Weight:** 22 Grams
- **Item dimensions L x W x H:** 3.15 x 5.12 x 0.79 inches
- **Manufacturer:** TRIWONDER
- **Material:** Aluminum
- **Style:** Classic

## Images

![TRIWONDER Bicycle Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bike Quick Release Clamp - Image 1](https://m.media-amazon.com/images/I/61Bx2qOm7GL.jpg)
![TRIWONDER Bicycle Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bike Quick Release Clamp - Image 2](https://m.media-amazon.com/images/I/61gO4qnEDYL.jpg)
![TRIWONDER Bicycle Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bike Quick Release Clamp - Image 3](https://m.media-amazon.com/images/I/61pflBCCEHL.jpg)
![TRIWONDER Bicycle Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bike Quick Release Clamp - Image 4](https://m.media-amazon.com/images/I/61scMht9upL.jpg)
![TRIWONDER Bicycle Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bike Quick Release Clamp - Image 5](https://m.media-amazon.com/images/I/61ul0JTzVML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good value & high quality
*by T***K on December 22, 2025*

Perfect fir for 2015 Speacilized Rock Hopper. Holds tight.

### ⭐⭐⭐⭐⭐ Works fine…
*by A***Y on December 11, 2025*

Just the right size to use on 30.4 seat post to keep it from slipping. I use it above the quick release clamp on the seat post frame tube for positive positioning if seat is removed and replaced.

### ⭐⭐⭐⭐⭐ Good clamp
*by U***E on December 12, 2025*

good clamp no slippage

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**Shop now:** [https://www.desertcart.dk/products/361668330-triwonder-bicycle-seat-post-clamp-31-8mm-34-9mm-aluminum](https://www.desertcart.dk/products/361668330-triwonder-bicycle-seat-post-clamp-31-8mm-34-9mm-aluminum)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-27*