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The frame of a bicycle influences its weight, strength, and ride quality, so a mountain bike frame must stand up to the bumps and shocks of the trail to provide a comfortable and durable ride.


Aluminium alloy is the most common material used in mountain bike frames due to its strength and light weight, though some manufacturers do offer steel and titanium, while high-end mountain bikes use carbon fibre frames. Find frames from top mountain bike manufacturers, including Trek and Giant.

  • Orbea Alma Carbon Fibre 29er mountain bike frame Medium

    Orbea Alma Carbon Fibre 29er mountain bike frame Medium

    £300.00
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    or Best Offer
    Free P&P
    • 18 watching
    Full specs:Orbea Alma 29er carbon fibre frame, 2011. Rides really well and is an excellent XC race bike. Very stiff under load but not as harsh as alloy. Size medium: 470mm seat tube, 570mm top tube a...
  • Planet X On One 456 Evo Carbon Mountain Bike MTB Frame 18

    Planet X On One 456 Evo Carbon Mountain Bike MTB Frame 18"

    £199.99
    Buy it now
    or Best Offer
    + £20.00 P&P
    Ref 456 EVO 23. Carbon Mountain Bike Frame Size 18" This listing is for the frame only, it does not include any other parts. This frame is used but in very good condition overall .
  • Planet X On One Whippet Carbon Mountain Bike MTB Frame 20

    Planet X On One Whippet Carbon Mountain Bike MTB Frame 20"

    £169.99
    Buy it now
    or Best Offer
    + £20.00 P&P
    Carbon Mountain Bike Frame Size 20" This frame is used but in very good condition. The HDM plate is damaged, the bike will need to be used with a single front ring. This listing is for the frame only,...
  • Planet X On One Whippet Carbon Mountain Bike MTB Frame 18

    Planet X On One Whippet Carbon Mountain Bike MTB Frame 18"

    £119.99
    Buy it now
    or Best Offer
    + £20.00 P&P
    Ref Whippet 18. Carbon Mountain Bike Frame Size 18" This frame is used. The HDM plate is damaged, the bike will need to be used with a single front ring. This listing is for the frame only, it does no...
  • Planet X On One Race 29 Carbon Mountain Bike MTB Frame 18

    Planet X On One Race 29 Carbon Mountain Bike MTB Frame 18"

    £99.99
    Buy it now
    or Best Offer
    + £18.00 P&P
    Carbon Mountain Bike Frame Size 18" This frame is used but in very good condition.There is some damage around the bottom bracket.

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