System EX Adjustable Stem



Fitted bundle deal

includes Accessories + Fitting

System EX Adjustable Stem


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  • Description
  • Specification
  • Reviews
  • Delivery Options
  • Help & Advice
  • Buying Options
  • System EX Adjustable Stem

    The System EX Adjustable Stem is wonderfully impressive with its powers to adjust from a zero degree rise through to a 60 degrees rise. The stem gets you riding in the right position for you and with cold forged and heat treated aluminium power, you can enjoy it for a very long time.

    System EX Adjustable Stem Extra Info

    • Secure and easily adjustable
    • Cold forged and heat treated 6061 aluminium alloy
    • Compatible with handlebar size: 25.4mm and 31.8mm
    • Adjusts through to 60 degrees
    • Ahead: 1 1/8 inch
    • Weight: 272g
  • Discipline: Road
    Material: Aluminium
    Type: Stems
  • System EX Adjustable Stem is rated 4.7 out of 5 by 25.
    Rated 5 out of 5 by from Excellent Excellent product. Exactly what was needed. Very easy to fit and adjust. Really pleased.
    Date published: 2018-01-29
    Rated 4 out of 5 by from Neck pain? This helps. If, like me, you suffer from neck problems on modern bikes this enables you to raise the handlebars well above that allowed by the stem provided which, even when turned up the other way doesn't do the job. This is not the prettiest stem and it is a bit on the heavy side but, and this is the important bit, it works and is not too expensive.
    Date published: 2017-07-05
    Rated 4 out of 5 by from Excellent product BUT requires additional spacer. Great quality item and easy to fit. Raised the handle bars significantly for a comfy riding position. The only issue I had was that the original headset spacers were not quite enough for the top washer to clamp down on this stem so I had to purchase a further 5mm washer after revisiting the store later! When purchasing this item check the height of your current stem - this one is 34mm.
    Date published: 2017-02-26
    Rated 5 out of 5 by from Handle bar riser Needed to raise the height of our handle bars to make the ride more comfortable and this did the job perfectly. It replaced the existing connector from the stem to the handle bar and was fully adjustable. The niggle i would have with it is the lack of product description by Halfords. It was only after speaking to shop staff we were shown this item. Then I had to buy more spacers, only £3.00, to complete the job.
    Date published: 2017-02-07
    Rated 5 out of 5 by from System EX adjustable stem Does exactly what I wanted it for, raised the bars and brought them nearer to the seat. easy to fit and adjust. Staff at Beverley really helpful.
    Date published: 2016-10-17
    Rated 5 out of 5 by from Worthwhile addition My Carrera Vulcan handlebars were too low for my liking - too much weight on my wrists. This solved the problem and gives a good range of positions. It is heavier than the replaced stem but not much. I was, and still am, unsure what the 110mm size means. They come in a range of lengths and I just guessed. Maybe Halfords should look at their description to make it more helpful.
    Date published: 2016-08-23
    Rated 5 out of 5 by from Just What I Needed Adding this stem adjuster completely transformed the dynamics and comfort of my bike.
    Date published: 2016-08-09
    Rated 5 out of 5 by from Good Value, adjustable Stem Easy to order, advised when ready to collect; polite service in store. Stem is easy to fit, and also to adjust. take your tools with you on your first ride, just in case. I need to be able to increase the height of the handlebars, this has been achieved.
    Date published: 2016-08-09
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  • UK Delivery

    £3.99 Standard Delivery available on orders under £40 placed by 8pm*

    Your delivery date will be communicated at checkout. Delivery times are Monday to Saturday.


    UK Delivery

    FREE Click & Collect - you can reserve an item online and pick it up from a store of your choice

    Simply enter your Postcode on the product page to check availability, and select Click & Collect at checkout. What's more, you pay for your items on collection. Click here to learn more.

    Items in stock - collect from 1 hour
    If your item is in stock at your chosen store, you can collect it from one hour after ordering online. We'll hold your item in-store for seven days.

    Items not in stock - collect next day*
    If your item isn't in stock, we can order it to your chosen store for collection.
    *If you place your order before 8pm you can collect it from 4pm the following day (except Sundays), and we'll hold your item in-store for seven days.

    Built Bikes
    Collection time will increase by 24 hours if you'd like us to build your bike for you.

    Please note that items sent directly from the supplier need to be ordered by 3pm for collection two days later. All delivery times will be shown during checkout.


  • You can buy this product from one of our carefully selected Approved Partners. The full list of options available are below. Simply add your chosen option to your basket and proceed to checkout when you're ready.

    You can purchase products supplied by Halfords and selected other suppliers on

    Checkout is always via and all payment will be taken via In checkout the products will be split into separate deliveries for each supplier.

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    Price Seller Info Purchase

Some of the parts we sell here at Halfords have been reconditioned. These will carry a Refundable Deposit or an extra surcharge amount. When you add one of these reconditioned items to your basket, we'll add this extra cost automatically.

Once you've sent us your old item we'll check it over, and then refund you the full surcharge as long as everything is ok.

Before you return your old unit please make sure it's in re-serviceable condition. So if you're returning caliper casings, you'll need to double check they aren't badly damaged or broken. If the part you've sent is found to be unserviceable, we reserve the right not to refund the surcharge.

Please note that if you're returning your old unit to our National Returns Centre then this will be at your own expense.

System EX Headsets & Stems

System EX Adjustable Stem

£24.99 System EX Adjustable Stem is super easy to fit and adjust, and gives you a comfy riding position.