---
product_id: 358248840
title: "Seat Post Clamp"
brand: "triwonder"
price: "€ 13.10"
currency: EUR
in_stock: null
reviews_count: 13
category: "Triwonder"
url: https://www.desertcart.es/products/358248840-seat-post-clamp
store_origin: ES
region: Spain
---

# Durable aluminum alloy build Quick-release for fast adjustments Precision-fit 31.8mm & 34.9mm sizes Seat Post Clamp

**Brand:** triwonder
**Price:** € 13.10
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Lock in your ride’s perfect position—fast, firm, flawless.

## Quick Answers

- **What is this?** Seat Post Clamp by triwonder
- **How much does it cost?** € 13.10 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/358248840-seat-post-clamp)

## 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

- • **Sleek & Minimalist:** Smooth, black anodized finish adds a subtle, professional edge to your bike’s aesthetic.
- • **Lightweight Yet Tough:** Crafted from premium aluminum alloy, combining featherlight 18g weight with rugged durability.
- • **Swift Seat Adjustments:** Quick-release design lets you fine-tune your saddle height in seconds—no tools, no hassle.
- • **Perfect Fit, Every Ride:** Engineered for 31.8mm and 34.9mm seat tubes to ensure zero slip and maximum stability.
- • **Universal Compatibility:** Fits most aluminum frame bikes including mountain and road bikes, making upgrades seamless.

## Overview

The TRIWONDER Bicycle Seat Post Clamp is a high-quality, lightweight aluminum alloy clamp designed for 31.8mm and 34.9mm seat tubes. It features a quick-release mechanism for rapid saddle height adjustments and fits most aluminum frame bikes, delivering reliable, slip-free performance with a sleek, durable finish.

## Description

desertcart.com : TRIWONDER Bicycle Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bike Quick Release Clamp (Black - 31.8mm) : 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 | B0924GPRXC |
| Best Sellers Rank | #27,055 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #6 in Bike Seat Clamps |
| Brand | TRIWONDER |
| Brand Name | TRIWONDER |
| Color | 02 Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,784) |
| Date First Available | April 9, 2021 |
| Item Dimensions LxWxH | 3.15 x 5.12 x 0.79 inches |
| Item Package Dimensions L x W x H | 2.99 x 2.09 x 0.63 inches |
| Item Weight | 18 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 | 31.8mm |
| Style | Classic |

## Product Details

- **Brand:** TRIWONDER
- **Color:** 02 Black
- **Item Weight:** 18 Grams
- **Item dimensions L x W x H:** 3.15 x 5.12 x 0.79 inches
- **Manufacturer:** TRIWONDER
- **Material:** Aluminum
- **Style:** Classic

## Images

![Seat Post Clamp - Image 1](https://m.media-amazon.com/images/I/51oUc9CB1BL.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.es/products/358248840-seat-post-clamp](https://www.desertcart.es/products/358248840-seat-post-clamp)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-25*