Shimano RD-M310 Altus SGS Rear Derailleur Black



Fitted bundle deal

includes Accessories + Fitting

Item: 984088

Shimano RD-M310 Altus SGS Rear Derailleur Black


How can I get it?

FREE Click & Collect

  • Description
  • Specification
  • Reviews
  • Delivery Options
  • Help & Advice
  • Price Match
  • Buying Options
  • Shimano RD-M310 Altus SGS Rear Derailleur Black

    The Shimano RD-M310 Altus SGS Rear Derailleur Black is a 7/8-speed MTB-style component group for city sport and youth bikes. In addition to an excellent cost performance, ALTUS provides a feeling of "easy control" that inspires confidence, especially among novice cyclists and younger riders.

    Shimano RD-M310 Altus SGS Rear Derailleur Black Extra Info

    • 7/8-speed MegaRange MTB rear derailleur
    • Wide link design for more rigidity and precise shifting
    • Advanced light action
    • Oversize 15-tooth tensioner and 13-tooth guide pulleys reduce noise and wear
  • Discipline: MTB
    Material: Steel/Aluminium
    Speed Type: 8 Speed
    Type: Rear Derailleurs
    Weight: 453g
  • Shimano RD-M310 Altus SGS Rear Derailleur Black is rated 4.9 out of 5 by 10.
    Rated 5 out of 5 by from Quite low price but works beautifully! I've been using quite a good mid-price-ranged Hybrid bike that I bought only last year, but I've not been at all happy with the noisy drive train on it - and the noise was coming mainly from the rear mech., so I decided to replace it with another one. And I soon as I fitted this Shimano RD-M310 Altus SGS Rear Deraiileur (or Mech), I could tell that it was 10 times better than the one that came with the bike. After a few adjustments and after a short ride, I can honestly say that this new RD-M310 Altus iis a huge improvement on the old one and virtually silent in use and I'm really pleased with it and would thoroughly recommend.
    Date published: 2018-05-29
    Rated 5 out of 5 by from Excellent Price was reduced on line and item was a bargain price. Derailleur was dispatched very quickly
    Date published: 2018-02-28
    Rated 5 out of 5 by from Good value for money Fab what a change, the part was the same make and model as the old worn out one on my bike. I've had for over five years so it's going to last, and was very simple to fit.
    Date published: 2017-12-20
    Rated 5 out of 5 by from Replacement Gears Ordered online, picked up from Clydebank, served by Chris.. Now fitted with new chain and chainrings, all working great.
    Date published: 2017-06-14
    Rated 5 out of 5 by from Derailleur Looks good and works perfectly on MTB. Allows new cassette with mega cog to work.
    Date published: 2017-05-09
    Rated 4 out of 5 by from good service and the right product The service when we went to pick up the parts was very good , the part was just what we needed and the staff showed us how to put it on many thanks
    Date published: 2016-07-19
    Rated 5 out of 5 by from Good basic derailleur I bought this to replace the worn derailleur on my bike. As it was a like for like swap, setting it up was really easy. As the old one lasted for over 3 years and 5000+ miles if this replacement lasts as long, i will be more than happy.
    Date published: 2015-10-09
    Rated 5 out of 5 by from Bike part More than satisfied very helpful staff many thanks
    Date published: 2015-06-24
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    • clientName_halfords
  • UK Delivery

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

    Your delivery date will be communicated at checkout and on your confirmation email.

    Delivery times are Monday to Saturday.

    *Click here to learn more.


    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 from 48 hours*
    If your item isn't in stock, we can order it to your chosen store and it will be ready for collection from 48 hours.
    Bike delivery will take four days, and an extra day if you'd like us to build it 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.


  • Halfords - Our Price Match Promise

    At Halfords we strive to offer our customers first class service and products at competitive prices.

    In order to uphold our Price Promise to not be beaten on price, we actively monitor the prices offered by our competitors daily and adjust our own pricing accordingly.

    If you find a cheaper price we'll match it, and if you find it after you've purchased from us we'll refund the difference within 7 days of receipt of your goods.

    Simply take a print out of the competitor's online price into any Halfords store, ensuring, date and price are shown and we will match the competitor price if within policy.

    Terms & Conditions

    • The competitor's item must be identical (colour, size etc)
    • The competitor's item must be in stock at the time of match
    • The competitor's price must include delivery
    • The competitors price must be publically advertised online and cannot include any membership/personal discounts
    • We cannot match bulk promotional offers such as buy one get one free
    • The competitor must be based in the UK and sell direct to customers (no auction or marketplace retailers)
    • No other promotional offers or vouchers can be used on top of a price match
    • We will match within 7 days of receipt of purchase
    • We will match in store if our online price is lower than our store price
    • We will not match against clearance, closing down sales or specialist retailers such as market stalls.
    • In order to change the price of items bought on finance, the original agreement must be cancelled and a new one created at the lower price. The new agreement must still meet the minimum value and item requirements for finance.
    • Items sold by Halfords Approved Partners are not subject to our price match policy.
  • 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.

Shimano Gears, Drivetrain & Cables

Shimano RD-M310 Altus SGS Rear Derailleur Black

£21.99 The Shimano RD-M310 Altus SGS Rear Derailleur Black is a 7/8-speed MTB-style component