---
product_id: 470476486
title: "Bike Seat Clamps 2 pcs, 31.8mm Bicycle Seat Post Clamp-Black"
brand: "cuncui"
price: "¥2215"
currency: JPY
in_stock: true
category: "Cuncui"
url: https://www.desertcart.jp/products/470476486-bike-seat-clamps-2-pcs-31-8mm-bicycle-seat-post
store_origin: JP
region: Japan
---

# Fits 27.2-28.6mm seat posts - versatile compatibility Quick-release lock - effortless seat adjustments 6061 aluminum alloy - lightweight & durable Bike Seat Clamps 2 pcs, 31.8mm Bicycle Seat Post Clamp-Black

**Brand:** cuncui
**Price:** ¥2215
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Upgrade your ride, unlock your freedom!

## Quick Answers

- **What is this?** Bike Seat Clamps 2 pcs, 31.8mm Bicycle Seat Post Clamp-Black by cuncui
- **How much does it cost?** ¥2215 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/470476486-bike-seat-clamps-2-pcs-31-8mm-bicycle-seat-post)

## Best For

- cuncui enthusiasts

## Why This Product

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

## Key Features

- • **Double the Value:** Set of 2 clamps means you’re ready for multiple bikes or a backup—because you never want to be caught unprepared.
- • **Sleek & Stealthy:** Matte black finish blends effortlessly with any bike style, elevating your ride’s aesthetic.
- • **Snap & Go Comfort:** Quick-release design lets you adjust your seatpost in seconds—no tools, no hassle.
- • **Ride Light, Ride Strong:** Crafted from premium 6061 aluminum for unbeatable strength without the bulk.
- • **Universal Fit, Zero Guesswork:** Engineered to fit a wide range of seat post diameters (27.2-28.6mm) for seamless upgrades.

## Overview

The CUNCUI Bike Seat Clamps set includes two 31.8mm quick-release clamps made from lightweight, durable 6061 aluminum. Designed for seat posts with outer diameters between 27.2mm and 28.6mm, these clamps offer easy, tool-free adjustments and a sleek black finish, making them a versatile and stylish upgrade for mountain, trail, and indoor bikes.

## Description

desertcart.com : CUNCUI Bike Seat Clamps 2 pcs, 31.8mm Bicycle Seat Post Clamp-Black | Quick Release Seatpost Clamp for 27.2-28.6mm Outer Diameter of seat post, Premium Adjustable Bike Seat Clamp Set of 2 : Sports & Outdoors

## Features

- 【High quality material】Our bicycle seat clamp is made of 6061 aluminum, light and durable, comfortable and safe.
- 【Widely used】Suitable for indoor and outdoor use, mountain bike, indoor bike, trail bike can be used, please confirm before ordering this bicycle seat clamp can be installed on your bike seat.
- 【Easy to install 】Low-cost solution, let you sit more comfortable, let you ride more smoothly, have a good mood.
- 【Compatible with multiple sizes】The inside diameter of the seat clamp is 31.8mm, suitable for 27.2-28.6mm Outer Diameter of seat post
- 【Unique design】Bike clips are quick-release lock design, quick disassembly, making riding more comfortable, stable and safe.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B4V4RY45 |
| Best Sellers Rank | #15,008 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #4 in Bike Seat Clamps |
| Brand Name | CUNCUI |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (330) |
| Included Components | 2 seat clamps |
| Item Diameter | 31.8 millimeters |
| Item Dimensions | 2.55 x 2.36 x 0.51 inches |
| Item Highlight | Quick Release Seatpost Clamp for 27.2-28.6mm Outer Diameter of seat post, Premium Adjustable Bike Seat Clamp Set of 2 |
| Item Weight | 0.08 kg |
| Manufacturer | CUNCUI |
| Material Type | Aluminum |
| Number of Items | 30 |
| Set Name | Bike Seat Clamp Set (2 Piece) |
| Style Name | Modern |
| UPC | 618087197775 |
| Unit Count | 2 Count |

## Product Details

- **Brand:** CUNCUI
- **Color:** Black
- **Item Weight:** 0.08 kg
- **Item dimensions L x W x H:** 2.55 x 2.36 x 0.51 inches
- **Material:** Aluminum
- **Number of Items:** 30
- **Set Name:** Bike Seat Clamp Set (2 Piece)
- **Style:** Modern
- **UPC:** 618087197775

## Images

![Bike Seat Clamps 2 pcs, 31.8mm Bicycle Seat Post Clamp-Black - Image 1](https://m.media-amazon.com/images/I/61bQLz4zJDL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Frequently Bought Together

- CUNCUI 2pcs Bike Seat Clamps 31.8mm, Seatpost Clamp, Premium Bike Seat Clamp, Inside Diameter of Seat Tube Clamp 31.8mm (Black)
- Boenoea Bike Seatpost, Bicycle Seat Post 25.4 27.2 28.6 30.4 30.9 31.6 400mm Length Aluminum Alloy Bicycle Seat Tube for Mountain Bike and Road Bike, MBX
- Comfortable Seat Cushion for Men Women with Dual Shock Absorbing Ball Memory Foam Waterproof Wide Bicycle Saddle Fit for Road Bikes

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**Shop now:** [https://www.desertcart.jp/products/470476486-bike-seat-clamps-2-pcs-31-8mm-bicycle-seat-post](https://www.desertcart.jp/products/470476486-bike-seat-clamps-2-pcs-31-8mm-bicycle-seat-post)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-21*