image of System EX Seat Post

System EX Seat Post


Save £2
RRP £19.99 *

Intervening prices may have been charged

How can I get it?

Collection not available

Delivery not available

Sorry - this product is unavailable right now

Continue Shopping
  • Description
  • Reviews
  • Help & Advice
  • Buying Options
  • System EX Seat Post

    The System EX Seat Post is a brill seat post that measures in at 400mm, made from a light weight alloy. Carefully constructed to have a single adjuster bolt for simple use.

    System EX Seat Post : Extra Info

    • Made from 6061 T6 alloy for a strong and sturdy part
    • Built with a single adjuster bolt making it easy to use and install without any hassle
    • Measures in at 400mm
    • Available in two finishes of matt black or silver
  • Rated 4.6 out of 5 by 10 reviewers.
    Rated 5 out of 5 by System EX Seat Post This product is great so easy to fit.. Quality ... 19 September 2015
    Rated 5 out of 5 by Seat post. I have been upgrading an old mountain bike and was having difficulty finding a longer seat post with the right diameter. This was a perfect fit. The saddle fitment works without slipping even though I have got it set as far back as possible. It is black which I think looks smart. 10 September 2015
    Rated 5 out of 5 by System EX Seat Post - 27.2mm - Silver Good solid clamp on the top and is fully adjustable. Fitted well and arrivied swiftly - thanks 22 August 2015
    Rated 4 out of 5 by Does the job Was not happy with the seat post on my new electric bike. Bought this to use with a new seat. Easy to fit and does the job. 06 June 2014
    Rated 4 out of 5 by seat post A good sturdy seat post.I used it to replace the exsisting silver only comment is the weight..a little heavy. 28 January 2014
    Rated 5 out of 5 by Outstanding value for money AND looks great Good looking shiny seat post. Cheapest price I have ever.seen for a quality product. Would definitely recommend this item. 21 December 2013
    Rated 4 out of 5 by I am 6 ft tall I am 6 ft tall. Seats in 21 inch frame bikes are to low for me. This post gives enough extension, and even there is a bit left spare. I am a content user. 09 December 2013
    Rated 4 out of 5 by Good price Great value item online with easy pick up in store. 22 November 2013
    • 2016-05-26 T14:56:55.222-05:00
    • bvseo_lps, prod_bvrr, vn_prr_5.6
    • cp-1, bvpage1
    • co_hasreviews, tv_10, tr_10
    • loc_en_US, sid_409085, prod, sort_default
    2 next>>
  • 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.

    Showing 1 - X of our buying options
    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.

Live Chat

Help and Chat

We're sorry – all our advisors are a bit tied up at the moment!

To contact us by phone or email click the button below to get in touch.

Contact Us

We're available to chat 7 days a week:

Live Chat Opening Hours:

  • Monday Friday

    08:00 22:00
  • Saturday

    08:00 22:00
  • Sunday

    08:00 22:00
  • Bank Holidays

    08:00 22:00
System EX Saddles & Seat Posts

System EX Seat Post

£17.99 The System EX Seat Post is the fantastic part that can secure a saddle to your bike easy peasy.