---
product_id: 405742252
title: "SERIOUS STEEL FITNESS Nylon Olympic Adapter Sleeve 8\" - Convert 1\" Bars or Posts to 2\" Olympic Bars or Posts. Includes Removeable end Cap for Longer Posts."
brand: "serious steel fitness"
price: "$81"
currency: NZD
in_stock: true
reviews_count: 10
url: https://www.desertcart.nz/products/405742252-serious-steel-fitness-nylon-olympic-adapter-sleeve-8-convert-1
store_origin: NZ
region: New Zealand
---

# 8" length Includes allen key Heavy-duty plastic SERIOUS STEEL FITNESS Nylon Olympic Adapter Sleeve 8" - Convert 1" Bars or Posts to 2" Olympic Bars or Posts. Includes Removeable end Cap for Longer Posts.

**Brand:** serious steel fitness
**Price:** $81
**Availability:** ✅ In Stock

## Summary

> 🏋️‍♂️ Elevate Your Lifting Game!

## Quick Answers

- **What is this?** SERIOUS STEEL FITNESS Nylon Olympic Adapter Sleeve 8" - Convert 1" Bars or Posts to 2" Olympic Bars or Posts. Includes Removeable end Cap for Longer Posts. by serious steel fitness
- **How much does it cost?** $81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/405742252-serious-steel-fitness-nylon-olympic-adapter-sleeve-8-convert-1)

## Best For

- serious steel fitness enthusiasts

## Why This Product

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

## Key Features

- • **Secure Fit:** Metal hex bolt ensures a tight, reliable connection without stripping.
- • **Built to Last:** Crafted from high-quality, heavy-duty plastic for durability.
- • **User-Friendly Design:** Removable end cap allows for use with longer posts.
- • **Compact & Lightweight:** Weighs only 0.2 kg, making it easy to handle and store.
- • **Transform Your Workout:** Easily convert 1" bars to 2" Olympic bars for versatile training.

## Overview

The SERIOUS STEEL FITNESS Nylon Olympic Adapter Sleeve is an essential accessory for fitness enthusiasts looking to upgrade their equipment. This 8" sleeve allows you to convert standard 1" bars or posts into 2" Olympic sizes, enhancing your workout versatility. Made from durable plastic with a secure metal hex bolt, it includes a removable end cap for longer posts and comes with an allen key for easy adjustments.

## Description

SERIOUS STEEL FITNESS Nylon Olympic Adapter Sleeve 8" - Convert 1" Bars or Posts to 2" Olympic Bars or Posts. Includes Removeable end Cap for Longer Posts.

## Features

- You are viewing: Serious Steel Fitness Olympic 8" Adapter Sleeve - Single
- Turn your 1" standard barbell or weight post into a 2" Olympic weight bar or weight post. Great for older style barbells, curl bars and plate loaded weight machines
- Made from heavy duty and high quality plastic with a metal hex bolt.
- Includes 1 allen key to tighten and loosen the metal hex nut. End cap is REMOVABLE for use with longer 1" standard posts!
- Other styles typically include a nylon nut that can strip easily, once over tightened by the slightest bit. However, please still refrain from overtightening.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 11.42 x 3.62 x 2.24 inches |
| Package Weight | 0.2 Kilograms |
| Brand Name | SERIOUS STEEL FITNESS |
| Model Name | Single |
| Color | Single |
| Manufacturer | Serious Steel Fitness |
| Part Number | SSF_ADPSLEEVE_S |

## Images

![SERIOUS STEEL FITNESS Nylon Olympic Adapter Sleeve 8" - Convert 1" Bars or Posts to 2" Olympic Bars or Posts. Includes Removeable end Cap for Longer Posts. - Image 1](https://m.media-amazon.com/images/I/51GkMFuM2DL.jpg)
![SERIOUS STEEL FITNESS Nylon Olympic Adapter Sleeve 8" - Convert 1" Bars or Posts to 2" Olympic Bars or Posts. Includes Removeable end Cap for Longer Posts. - Image 2](https://m.media-amazon.com/images/I/71Pg6Ey+qkL.jpg)
![SERIOUS STEEL FITNESS Nylon Olympic Adapter Sleeve 8" - Convert 1" Bars or Posts to 2" Olympic Bars or Posts. Includes Removeable end Cap for Longer Posts. - Image 3](https://m.media-amazon.com/images/I/71r-MIza4SL.jpg)
![SERIOUS STEEL FITNESS Nylon Olympic Adapter Sleeve 8" - Convert 1" Bars or Posts to 2" Olympic Bars or Posts. Includes Removeable end Cap for Longer Posts. - Image 4](https://m.media-amazon.com/images/I/81eXQMoUfsL.jpg)
![SERIOUS STEEL FITNESS Nylon Olympic Adapter Sleeve 8" - Convert 1" Bars or Posts to 2" Olympic Bars or Posts. Includes Removeable end Cap for Longer Posts. - Image 5](https://m.media-amazon.com/images/I/812-+AtDbQL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Fits
  

*by A***N on Reviewed in the United States on August 28, 2024*

Fits and easy to install

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Secure
  

*by W***S on Reviewed in the United States on May 27, 2024*

Secure fit on my EZ curl Bar!  These sleeves are a super simple solution for using your existing olypic plates on a 1" bar.Easy installation with the included allen keys and pop off end caps make setup a breeze.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    It works.
  

*by S***R on Reviewed in the United States on May 21, 2024*

Purchased this to allow me to use Olympic plates on my leg curl attachment which does not hold Olympic plates.  Unfortunately it's just 2 inches shy of the length of the plate holder on the curl attachment and the end popped off (which it is designed to do). There is no issue with the adapter,  I only wish it were longer. It works as advertised.

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**Shop now:** [https://www.desertcart.nz/products/405742252-serious-steel-fitness-nylon-olympic-adapter-sleeve-8-convert-1](https://www.desertcart.nz/products/405742252-serious-steel-fitness-nylon-olympic-adapter-sleeve-8-convert-1)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-25*