---
product_id: 3515183
title: "JRFOTO Full Carbon Fiber Bike Seatpost seat Post 31.6 / 300mm SP13 300mm"
brand: "jrfoto"
price: "$8.13"
currency: USD
in_stock: false
reviews_count: 8
url: https://www.desertcart.us/products/3515183-jrfoto-full-carbon-fiber-bike-seatpost-seat-post-31-6
store_origin: US
region: United States of America
---

# 31.6mm Diameter Carbon Fiber Lightweight 270g JRFOTO Full Carbon Fiber Bike Seatpost seat Post 31.6 / 300mm SP13 300mm

**Brand:** jrfoto
**Price:** $8.13
**Availability:** ❌ Out of Stock

## Summary

> 🚴‍♂️ Ride Light, Ride Right!

## Quick Answers

- **What is this?** JRFOTO Full Carbon Fiber Bike Seatpost seat Post 31.6 / 300mm SP13 300mm by jrfoto
- **How much does it cost?** $8.13 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/3515183-jrfoto-full-carbon-fiber-bike-seatpost-seat-post-31-6)

## Best For

- jrfoto enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Crafted with 3k weaves for enhanced strength and durability.
- • **Sleek Aesthetic:** The alloy clamp adds a touch of elegance to your bike's profile.
- • **Elevate Your Ride:** Experience the ultimate in performance with a full carbon fiber construction.
- • **Featherlight Feel:** Weighing in at just 270g, this seatpost won't weigh you down.
- • **Precision Engineering:** Designed with a 31.6mm diameter for a perfect fit on most bikes.

## Overview

The JRFOTO Full Carbon Fiber Bike Seatpost is a high-performance component designed for serious cyclists. With a diameter of 31.6mm and a length of 300mm, this seatpost combines a lightweight design at just 270g with the durability of 3k carbon fiber weaves, ensuring both comfort and style on every ride.

## Description

Change the bulky and heavy seat post on your bike with this high quality and high strength Carbon Fiber Seat Post. This post will make your bike lighter and give you that extra distinctive look that you are looking for your bike. This seat post uses multi layer carbon fiber sheet for the entire construction. The post is stronger than steel because its been heated in a kiln to a point where the resin and carbon fiber sheets bonded together in to one piece.

## Features

- Main Materials Carbon Fiber + Alloy
- Clamp Diameter: 31.6mm
- Width:300mm
- Weight: 270g (9.5oz)
- 3k Weaves

## Images

![JRFOTO Full Carbon Fiber Bike Seatpost seat Post 31.6 / 300mm SP13 300mm - Image 1](https://m.media-amazon.com/images/I/31yenzN20pL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    Length is 400 mm
  

*by Z***E on Reviewed in the United States 🇺🇸 on January 23, 2013*

I didn't actually measure this seat post, but it's longer than the stock post it replaced, so it must be 400 mm. The description lists that as the "width", but that's just crazy. Quality is what you would expect for the price, so I'm happy. I don't remember the exact weight, but it was 20 or 30 grams less than my old aluminum post. The reason for 4 stars instead if 5 is twofold:  the seat angle adjustment is finicky (I got it where I want it, but it took a couple of tries) and, the seat post is somewhat flexible. That might actually be a feature because it absorbs a lot of shock (I'm very tall so a lot of the post sticks out of the frame). I got off the bike twice in the first mile if riding because I thought that my seat was loose!  I quickly got used to it, so like I said, this might be a feature on a long ride.Final opinion: get this if you need a really long post that is really pretty light (it looks good too!). And pick up some Finish Line carbon fiber assembly gel so that your not tempted to over tighten your seat clamp.

### ⭐⭐⭐⭐⭐ 







  
  
    Very pleasantly surprised.
  

*by M***Y on Reviewed in the United States 🇺🇸 on April 24, 2013*

The fit and finish of the seatpost is top notch! I was hesitant to order it because I didn't particularly like the seat adjustment in the post pictured. I was happy to see that the piece I received used the fore/aft bolt configuration like you would see on a Thompson seat post. Please see the pictures I added to the customer gallery. I'll be putting several hundred miles on this post over the next few weeks and will report back any issues.UPDATE: Rode a century using this post on Saturday. What can I say other than it didn't break. Made a few height adjustments and the resin still looks to be in good shape on the post. No deformation or nasty marks. Even got a few compliments from other bike geeks on how nice the post looks. Looking forward to many more miles on this post.

### ⭐ 







  
  
    Cheap for a reason.
  

*by R***Y on Reviewed in the United States 🇺🇸 on February 8, 2015*

Broke on the first ride, literally still on my block, as soon as I hit a bump. A loud snap and the metal clamp broke its bond from the carbon fiber tube leaving the seat spinning. I couldn't believe it. It's nowhere near any other stress points (bolts/clamps) all of which were torqued properly anyway. I'm about 175lb, it's a road bike, and only about 4 inches of post are exposed, it didn't cross my mind that it could just let go.Part of the reason name brand parts cost so much is because they're throwing stuff like this away before the consumer ever sees it.

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**Shop now:** [https://www.desertcart.us/products/3515183-jrfoto-full-carbon-fiber-bike-seatpost-seat-post-31-6](https://www.desertcart.us/products/3515183-jrfoto-full-carbon-fiber-bike-seatpost-seat-post-31-6)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-23*