---
product_id: 199129964
title: "Montague Steerer Extender, height adjustable by quick release up to 3 inches-Medium by Montague"
brand: "montague"
price: "A$243"
currency: AUD
in_stock: true
reviews_count: 9
category: "Sports"
url: https://www.desertcart.com.au/products/199129964-montague-steerer-extender-height-adjustable-by-quick-release-up-to
store_origin: AU
region: Australia
---

# Montague Steerer Extender, height adjustable by quick release up to 3 inches-Medium by Montague

**Brand:** montague
**Price:** A$243
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Montague Steerer Extender, height adjustable by quick release up to 3 inches-Medium by Montague by montague
- **How much does it cost?** A$243 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/199129964-montague-steerer-extender-height-adjustable-by-quick-release-up-to)

## Best For

- montague enthusiasts

## Why This Product

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

## Description

Medium length adjusts up to 3 inches;Fast, easy handlebar height adjustment without tools;Octagonal shape keeps steering engaged while raising and lowering the stem;Automatically maintains minimum insertion;Clamps to top of steerer, original stem clamps to top of Octagon device

## Features

- Montague Steerer Extender, height adjustable by quick release up to 3 inches-Medium

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 11 x 4.6 x 0.8 inches |
| Package Weight | 9.6 ounces |
| Item Dimensions  LxWxH | 10.5 x 5 x 1.75 inches |
| Item Weight | 4 ounces |
| Brand Name | Montague |
| Color | Black |
| Number of Items | 1 |
| Manufacturer | Montague |
| Part Number | AS-MG1-M |

## Images

![Montague Steerer Extender, height adjustable by quick release up to 3 inches-Medium by Montague - Image 1](https://images-na.ssl-images-amazon.com/images/I/41%2B3nnj9iLL.jpg)
![Montague Steerer Extender, height adjustable by quick release up to 3 inches-Medium by Montague - Image 2](https://images-na.ssl-images-amazon.com/images/I/51Rm8OHdNnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    OMG my back is saved
  

*by 7***7 on Reviewed in Canada on 28 September 2019*

This stem extender saved my sorry 63 year old back by not having to always lean over on long rides. When riding aggressively off road or to fit my folding bike into bag I adjust it to the lowest position. Have my cake and eat it too!!

### ⭐⭐⭐ 







  
    伸縮式ハンドルポスト
  
  

*by G***Y on Reviewed in Japan on 24 March 2018*

人柱として購入。スレッド式のヘッドパーツ以外のオーバーサイズ(1-1/8)フォークなら装着OKですが、スターファングルナットまたはプレッシャーアンカーを取り外しましょう(伸縮時に邪魔になります)。ハンドルの高さ調整はいくつかの段階があり、最大9cm以上と非常に広いです。重さも6インチサイズのスマホと同じくらいと比較的軽いです。また一番下の金色の円柱のロックを外せば台座を固定したままハンドルを抜く事も可能です。(基本的に使用している時にこのロックはほぼ発動しません。もちろんハンドルを抜き差ししなければこのロックは発動してしまって構いません)2018/07/09追記ハンドルの固定方法に下側はアーレンキーで上側はクイックリリースで止める方式を採用していますが、下側を強く締めすぎると高さ調節が出来なくなります。頻繁に高さ調節を行う場合、ネジの締め具合に注意が必要です。また頻繁に高さ調節を行うと、目盛りが簡単に削れてしまいますのでこの評価としました。

### ⭐⭐⭐⭐⭐ 







  
  
    Works well on Montague Bikes--but requires some work.
  

*by E***T on Reviewed in the United States on 2 September 2019*

I mounted this on an Montague Allston bike, and it is a big plus.  It gets me in a much more comfortable biking position, and it can be easily brought down when the bike is folded up.  But, installing it is tricky.  Here are some of the things I ran into:1.  A professional bike mechanic refused to install it.  He did not like the removal of the star nut.  So, I decided to install it myself.2.  To install it, I removed the fender and front wheel, placed the front fork on a wood block, and hammered out the star nut.  This does not come out easily, I used a piece of aluminum rod and it took some heavy pounding. Octagon's how to install it film clip, which shows the star nut coming out with a few taps on a wood dowel, is very optimistic.3.  I checked the dimensions and found the top of the stem was a .2 mm out of square.  I made up a custom spacer ring and set it's dimensions so the space from the spacer ring to the stem top was 17.9 to 18.1 mm.  Then, I clamped the Octagon collar on top with a home made head set compressor, and tightened it down to take any play out of the front headset.  Before doing this, I cleaned the outside of the stem and the inside of the collar to be sure they were clean and oil free for a good grip.  Once the headset was adequately tightened, I locked the collar down with 10 newton meters of torque (90 inch pounds) as specified.3.  I then put in the stem, ran it up and down, did some final adjustment to keep the brake lines from kinking, and set the height.  I then checked to be sure there was no play, and adjusted the clamp nut.  Afterwards, a test run verified it worked well.In summary, if you have access to good tools, and are mechanically inclined, you can install it yourself.  But, for the average person, I'd use a bike store.  It's a big plus once it is correctly installed.

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**Shop now:** [https://www.desertcart.com.au/products/199129964-montague-steerer-extender-height-adjustable-by-quick-release-up-to](https://www.desertcart.com.au/products/199129964-montague-steerer-extender-height-adjustable-by-quick-release-up-to)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-20*