Best Mountain Bikes Deals Online in the UK (25 Deals Found)

Last Updated - 27/07/2026 Sort By:

Best Choice
RCB

New
RCB GK2 26 Inch Hardtail Mountain Bike, 21-Speed MTB Bicycle with Aluminium Frame, Front Suspension, Mechanical Disc Bra
🚵‍♂️ Lightweight & sturdy aluminium frame The high-quality aluminium frame is particularly lightweight, corrosion-resis

£239.99 £289.99
Best Value
EVERCROSS

New
EVERCROSS Mountain Bike for Adult Men Women, 26'' Outdoor Cycling Bike, 21-Speed Gear System,Aluminum Frame Bicycle with
21-Speed Gear System for Versatile Riding： The 21-speed drivetrain provides a wide gear range, making this mountain bike

£249.99 £299.99
Used
Carrera Vengeance 27.5in XL Mountain Bike Front Suspension Green/Yellow.
Carrera Vengeance 27.5in XL Mountain Bike Front Suspension Green/Yellow.

£104.61
Flying

New
FLYing Lightweight 21 speeds Mountain Bikes Bicycles Strong Alloy Frame with Disc brake and Shimano parts Warranty
Frame material is always the first thing to check when choosing a mountain bike. Alloy frame offers better quality, stur

£219.99 £229.00
Used
Giant ATX Mountain Bike 29in XL Blue/Black Front Suspension Mechanical Disc
Giant ATX Mountain Bike 29in XL Blue/Black Front Suspension Mechanical Disc

£99.93
Zoobotanica

New
Zoobotanica 26 Inch Mountain Bike, 21 Speed Folding Mountain Bike,Dual Suspension,High Carbon Steel Body, Front and Rear
STREAMLINED TRIANGULAR STRUCTURE: This bike uses the classic streamlined triangle structure, presenting a fashionable an

£169.99
TRIOBLADE

New
TRIOBLADE 24''26''27.5'' Mountain Bike 3 Spoke Wheels Mountain Bicycle 21 Speeds Disc Brake Bike Lightweight Frame Bicyc
Quality Materials: Our 24/26/27.5 inch mountain bike comes with a sturdy and lightweight frame, which is both lightweigh

£209.99
Used
Muddyfox Colorado 400 29in XL Mountain Bike Blue/Green Front Susp Disc
Muddyfox Colorado 400 29in XL Mountain Bike Blue/Green Front Susp Disc

£124.99
Generic

New
Rexhan 24", 26”, 27.5 Inch Mountain Bike, Foldable Adult & Teenager Bicycle, City Bike, Commuter Cycle, Unisex Men & Wom
REXHAN BRAND: An established customer focused U.K brand that ONLY sells premium quality goods. Our only goal is to make

£179.99
New
24/26/27.5/29inch Mountain Bike Front Suspension 21 Speed Bicycle Men Women Bike
🚲Assemble Guidance - This bike arrives 85% assembled, You need to assemble the front wheel, pedals, handlebars, seat an

£209.90
Totem

New
Cambreeze Unisex's Mountain Bike/Bicycles 27.5'' Wheel Lightweight Aluminium Frame 21 Speeds Shimano Disc Brake, Black 2
Large 27.5'' wheel. All bikes are exactly same as images. Promotion. Cambreeze model. Very good quality. Light weighted

£229.99
TRIOBLADE

New
TRIOBLADE 24/26/27.5/29 Inch Mountain Bike 21 Speeds Bike 17.5 Inch Lightweight Aluminium Frame Bicycle for Adult Men Wo
Quality Materials: The 24 inch mountain bike comes with a strong and lightweight aluminium frame, which is both lightwei

£199.99
Used
Saracen Ariel Full Suspension Mountain Bike 24inch Disc Brakes M Green/Black
Saracen Ariel Full Suspension Mountain Bike 24inch Disc Brakes M Green/Black

£125.50
BSTSEL

New
BSTSEL 24/26/27.5/29 Inch Mountain Bike with Front Suspension Fork Mountain Bicycle 21 Speeds with Dual Disc-Brake Suita
【21 Speeds Professional Drive Train】- 21 speeds drive train is precise and simple to control, a wide range of gears give

£199.99
Used
Carrera Vengeance 26in Mens Mountain Bike XL - Grey/Green/White Disc Brake
Carrera Vengeance 26in Mens Mountain Bike XL - Grey/Green/White Disc Brake

£101.70
TRIOBLADE

New
TRIOBLADE 24/26/27.5/29 Inch Mountain Bike 21 Speeds Bike 17.5 Inch Lightweight Aluminium Frame Bicycle for Adult Men Wo
Quality Materials: The 24 inch mountain bike comes with a strong and lightweight aluminium frame, which is both lightwei

£189.99 £199.99
Used
Specialized Rockhopper 29in Hardtail Front Suspension Hydraulic Disc Black
🟩 new grips 🟩 new rim + wheel 🟩 tuning on brakes 🟩gears + chain tune. 🟧 no front brake ( comes with the front brake

£250.30
Used
Scott Aspect 27.5 in Hardtail MTB L Black/Green Front Suspension Hydraulic Disc
Scott Aspect 27.5 in Hardtail MTB L Black/Green Front Suspension Hydraulic Disc

£187.90
Used
giant gx 28 Men’s mountain bike
giant gx 28.

£312.70
Used
trek marlin5 2026
works like new only a bit of scratches

£394.30
Used
Sport Mountain Bike 26in Black/Red Front Suspension Disc Brakes Drop Bars
Sport Mountain Bike 26in Black/Red Front Suspension Disc Brakes Drop Bars

£46.28
New
26'' Wheel Mountain Bike Fat Tire Bikes 7-Speed Bicycle Cycle For Men Women NEW
Professional Fat Tires - The bikes specially use super strong professional tires that are wear-resistant and puncture-re

£265.59
New
26'' Mountain Bike 21 Speed MTB Adult &Teen Bicycle Front Suspension Disc Brakes
Straighten and secure the handlebars. 🚴‍♂️21-Speed 26" Mountain Bike with Front Suspension. ▲Both pedals should be tigh

£158.99
New
GT IDrive Full Suspension Mountain Bike
int condition GT IDrive Full suspension Mountain Bike M Frame 26 inch wheels Schwalbe marathon plus Tyres 3mm of punctur

£200.00
Used
Rockrider EXPL 520 Mountain Bike 29in L Grey Hydraulic Disc Front Suspension
Excellent condition used only one time Rockrider EXPL 520 Mountain Bike 29in L Grey Hydraulic Disc Front Suspension Coll

£276.30

25 Mountain Bikes deals are available from: Amazon, eBay stores, starting from £46.28.
The biggest discount we found is 17% on EVERCROSS Mountain Bike for Adult Men Women, 26'' Outdoor Cycling Bike, 21-Speed Gear System,Aluminum Frame Bicycle with Front Suspension, All-Terrain Bike with Disc Brakes,150 kg Max Load Black at Amazon.
The lowest price we found is £46.28 while the highest is £394.30.
Prices for the best Mountain Bikes deals average at £197.96.
Last updated on July 27, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Mountain Bikes.