Best Mountain Bikes Under £300 – Top 17 (2025)

Frame material is always the first thing to check when choosing a mountain bike. Alloy frame offers better quality, sturdy and light weight. Flying mountain bikes come with strong lightweight aluminium alloy frame, frame size 17″ , suitable for height 1, 58 m – 1,80 m. 26” wheel.

21-speed gears with shimano EF500 Brake/Shift handlebar-mounted control levers, Front Derailleur Shimano FD-TY300 Tourney, Rear Derailleur Shimano FD-TY21-B, Tourney. Freewheel Shimano MF-TZ500-7. KMC chain. Prowheel crank set, chainwheel, and chainguard.

Alloy disc brake, double wall wider alloy rim, 26” A/V good look tyre with extra puncture protection. Front suspension fork, non slip with grips pedals. with kickstand. The inner tube is standard 26 * 1. 95 with 60mm Schrader valve.

Bell not included. Install front wheel does not involve with any bolts of nuts, just put front wheel on, and then use quick release stick to lock it. That is, please donot try to remove any bolts of nuts. The bike is for normal use only, can not be used for competition, stunt riding and ramp jumping. All cycles are 85% assembled, it will require more assembly on pedals, stem bars, and front wheel. Adjusting front, rear brakes, and gears, as well as a general check over of all fixings on pre assembled parts. We strongly suggest that customers take the bike to a local bike shop for assistance, and is likely to incur extra cost to the purchaser.

Inner tubes can be ordered from Sunrise Cycles. Any questions please email info@sunrise-cycles.co.uk .The video of assembling bike can give some ideas about how much work requires, and customer service can be found from sunrise cycles website

【Professional Drive Train】- 21 speeds shimano drive train is precise and simple to control, a wide range of gears gives you more control for climbing and room to get low on descents, corners and jumps. The brake system consists of a double disc-Brake, Ensures total control in every situation

【Dual Suspension Bike】 – These all-terrain MTB feature dual suspension. The thickened outer wall is more resistant to shocks. The shock absorbers help absorb shocks. The parallel bars can adapt to pressure road conditions. Greatly improve the comfort during riding and allows people to enjoy riding

【Assemble Guidance】- This bike arrives 90% assembled, You need to assemble the front wheel, pedals, handlebars, seat and inflate the tires. If you have any doubts about the installation, you can check our installation video to help you, or take your bike to a local bicycle store for assistance, which may incur additional costs for buyers

【15KG LIGHTWEIGHT MOUNTAIN BIKE】-Constructed from lightweight aluminium， 27.5 inch folding bike for adult will get you uphill , downtown, and around your neighborhood faster and easier than ever, even with loads up to 120 kg.

【WEAR RESISTANT HIGH-QUALITY WHEELS】-27.5 Inch aluminium double wall rims with rubber tyres for comfort, stability and strength

【FAST ASSEMBLY】: This bike comes pre-assembled to 90%. The assembly is quick and easy and if required, our customer service is of course available to you.

【HIGH QUALITY STEEL DISC BRAKE SYSTEM】-In order to ensure your riding safety, our bicycle’s front and rear brakes use high-quality steel disc brake systems, and you can stop your bicycle as soon as 2 seconds.

【The Best Choice For Riders】 – Frame material is always the first thing to check when choosing a mountain bike. aluminium alloy frame offers better quality, sturdy and light weight. frame size 17″, the mountain bike fits people between 5’4”-6′

【Professional Drive Train】 – 21 speeds shimano drive train is precise and simple to control, a wide range of gears gives you more control for climbing and room to get low on descents, corners and jumps. The brake system consists of a double disc-Brake, Ensures total control in every situation

【Dual Suspension Bike】 – These all-terrain MTB feature dual suspension. The thickened outer wall is more resistant to shocks. The shock absorbers help absorb shocks. The parallel bars can adapt to pressure road conditions. Greatly improve the comfort during riding and allows people to enjoy riding

【3 Spoke Foldable Design】 – The 27.5-inch foldable mountain bike can be opened and closed in seconds, which is convenient for storage and carrying. High quality material, not easy to rust. The maximum load capacity of bicycle is 330 LBS, which is suitable for daily commuting and outdoor riding

【Assemble Guidance】 – This bike arrives 90% assembled, You need to assemble the front wheel, pedals, handlebars, seat and inflate the tires. If you have any doubts about the installation, you can check our installation video to help you, or take your bike to a local bicycle store for assistance, which may incur additional costs for buyers

27.5 Inch Wheel – Medium Frame Hardtail Mountain Bike with 18 Speed Shimano Gears.

Steel Hardtail Frame, front disc brake and suspension fork, you have all the ingredients needed for off-road adventures.

18 Speed Shimano Gears + Microshift selection ensures accurate and reliable gear changing with a range suitable for most hills and trails.

Sure Stopping : Front Disc brake offers confidence inspiring performance when you need most, coupled with plush front suspension for when the going gets rough.

Suits Rider Height : Frame size suitable for adults ‘medium’ fitting 5’6 – 5’10”. Excellent entry-level mountain bike.

Built around an alloy frame making it both strong and responsive

With a suspension fork which provides a super smooth ride over all types of terrain

Features include powerful mechanical disc brakes with lightweight alloy levers

Comes with powerful grip mountain bike tyres and a padded saddle

A Shimano Altus twenty four speed gears with Shimano Tourney TX gear levers

The bike comes 80% assembled. Please, check the “Assembly % Guide” below to see actions required to complete the assembly

This lightweight alloy 26 wheel eighteen speed wildtrak women’s mountain bike comes in a stylish white colour

Includes powerful front and rear V brakes for efficient stopping power, with adjustable reach brake levers and hi-riser MTB style handlebars and full mudguards, a rear carrier and front basket and shimano 18 speed gears with shimano EZ fire gear levers

The adjustable saddle, seat post, and hi-riser handlebars make for easy adjustments so that the rider can comfortably control bike

Alloy 26 wheels and robust 26 x 200 inch mountain bike style tyres for use on different surfaces

This wildtrak women’s bike with 26 inch wheels comes 80 percent assembled Inflation of tyres, fitting the pedals, handlebars or stem and seat post or saddle and adjustments to brake cables are required prior to riding tools and full instructions are included with the bike to take you through each process you will need a pump for inflating the tyres

Free side handlebar, same as second image. Light weighted strong lightweight aluminium alloy frame, frame size 17″ , suitable for height 1, 60 m – 1,88 cm. 27.5” wheel.

21-speed gears with shimano EF500 Brake/Shift handlebar-mounted control levers, Front Derailleur Sunrun, Rear Derailleur Shimano RD-TY50.

The bike is for normal use only, can not be used for competition, stunt riding and ramp jumping. All cycles are 85% assembled, it will require more assembly on pedals, stem bars, and front wheel. Adjusting front, rear brakes, and gears, as well as a general check over of all fixings on pre assembled parts. We strongly suggest that customers take the bike to a local bike shop for assistance, and is likely to incur extra cost to the purchaser.

The video of assembling bike can give some ideas about how much work requires

Cambreeze model. Very good quality. Light weighted strong lightweight aluminium alloy frame, frame size 17″ , suitable for height 1, 60 m – 1,88 cm. 27.5” wheel.

21-speed gears with shimano EF500 Brake/Shift handlebar-mounted control levers, Front Derailleur Shimano FD-TY300 Tourney, Rear Derailleur Shimano FD-TY21-B, Tourney. Freewheel Shimano MF-TZ500-7. KMC chain.

Front and rear disc brake, double wall alloy rim, 27.5” A/V good look tyre with extra puncture protection. Alloy crown front suspension fork, non slip with grips pedals. with kickstand. 27.5*1.95 inner tube.

Install front wheel does not involve with any bolts of nuts, just put front wheel on, and then use quick release stick to lock it. That is, please donot try to remove any bolts of nuts. The bike is for normal use only, can not be used for competition, stunt riding and ramp jumping. All cycles are 85% assembled, it will require more assembly on pedals, stem bars, and front wheel. Adjusting front, rear brakes, and gears, as well as a general check over of all fixings on pre assembled parts. We strongly suggest that customers take the bike to a local bike shop for assistance, and is likely to incur extra cost to the purchaser.

The video of assembling bike can give some ideas about how much work requires

Frame: Steel, Swing-arm Coil Suspension, 18″

Fork: Suspension Fork, Alloy, 26″

Handlebars: MTB Style, Black

Stem: Quill, Black

Brakes: Mechanical Disc, 160mm front, V-Brake rear (Resin lever)

Gearing: Shimano 18 Speed

Derailleur: Shimano Tourney, 6s x 3s

Shifters: Shimano Revoshift

Wheels: 26″, Brushed Alloy

Tyres: 26×1.95″, All-Terrain MTB

🚲Durable Frame – Frame material is always the first thing to check when choosing a mountain bike. aluminium alloy frame offers better quality, sturdy and light weight. frame size 17″, the mountain bike fits people between 5’9”-6’7”

🚲Professional Drive Train – 21 speeds shimano drive train is precise and simple to control, a wide range of gears gives you more control for climbing and room to get low on descents, corners and jumps. The brake system consists of a double disc-Brake, Ensures total control in every situation

🚲Shock Absorbing Design – These all-terrain MTB feature shock-absorbing front forks. The thickened outer wall is more resistant to shocks. The shock absorbers help absorb shocks. The parallel bars can adapt to pressure road conditions. Greatly improve the comfort during riding and allows people to enjoy riding

🚲29 Inch Tire – The 29 inch sports tires over more distance per roll and are easier to climb over obstacles,has a good performance for off-road and long-distance riding. Oversized 29 inch tires provide extra grip and stability on roads or mountain roads

🚲Assemble Guidance – This bike arrives 85% assembled, You need to assemble the front wheel, pedals, handlebars, seat and inflate the tires. If you have any doubts about the installation, you can check our installation video to help you, or take your bike to a local bicycle store for assistance, which may incur additional costs for buyers

This 275 wheel 650B lightweight alloy, 21 speed wildtrak men’s mountain bike has an 18 inch frame, zoom front suspension and comes in a stylish green and black colour

Includes powerful front and rear V brakes for efficient stopping power, with adjustable reach brake levers and hi-riser MTB style handlebars and an adjustable MTB type saddle and seat post make for easy adjustments and a threadless ahead handlebar stem

Shimano 21 speed gears with shimano EZ fire gear levers

275 650B alloy double wall wheels, with robust 275 x 210 inch mountain bike style tyres for use on different surfaces

This wildtrak Mens bike with 275-inch wheels comes 80 percent assembled Inflation of tyres, fitting the pedals, handlebars or stem and seat post or saddle and adjustments to brake cables are required prior to riding tools and full instructions are included with the bike to take you through each process you will need a pump for inflating the tyres

This 275 inch wheel, 21 speed wildtrak ATB has an 14 inch frame, front suspension and comes in a stylish orange colour

Includes mechanical disc brakes, shimano shifters and low-rise handlebars

The adjustable MTB type saddle and seat post make for easy adjustments

This wildtrak bike with 275 inch wheels comes 80 percent assembled

Inflation of tyres, fitting of pedals, handlebars or stem and seat post or saddle, adjustments to brake cables required prior to riding

Hi-Tensile steel 19 inch hardtail MTB frame – Zoom Misera front suspension forks

Mechanical front & rear disc brake set – 160mm rotors

600mm wide MTB low rise handlebars – A-Head handlebar stem

Quick release seat clamp – Sealed bottom bracket – 170mm cranks – Rear chainstay mounted propstand

Wheelset: 27.5, Double wall rims, front quick release wheel – Frame size: 19″

Colour: Black/blue & red- This bike comes 90% built and will require a final assembly.

Alu Frame: Lightweight and durable aluminum alloy frame for effortless riding and long-lasting performance.

21 Speeds: Smooth and precise 3*7-speed Shimano rear derailleur for seamless gear shifting and optimal control. Reliable and efficient front derailleur for reliable and accurate front gear changes.

Suspension Fork: Enhanced riding comfort with a durable iron suspension front fork for improved shock absorption and stability.

85% SKD: Convenient and time-saving 85% pre-packaged assembly for easy setup and quick use. Hassle-free assembly with clear instructions and all necessary tools included.

Size Guide & Warrenty: Designed to accommodate riders of various heights, our 26-inch bike with a 437mm frame offers a versatile riding experience for individuals ranging from 5’2″ to 5’10”. If you have any question about bike, Please do not hesitate to contact us.

Frame: Steel, Swing-arm Coil Suspension, 18″

Fork: Suspension Fork, Alloy, 26″

Handlebars: MTB Style, Black

Stem: Quill, Black

Mechanical Disc front, 160mm / V-Brake rear (Resin Lever)

Gearing: Shimano 18 Speed

Derailleur: Shimano Tourney, 6s x 3s

Shifters: Shimano Revoshift

Wheels: 26″, Brushed Alloy

Tyres: 26×1.95″, All-Terrain MTB

Frame: Steel Crossbar, 18″

Fork: Suspension Fork, Alloy, 26″

Handlebars: MTB Style, Black

Stem: Quill

Brakes: V-Brake, Resin Lever

Gearing: Shimano 18 Speed

Derailleur: Shimano Tourney, 6s x 3s

Shifters: Shimano Revoshift

Wheels: 26″, Brushed Alloy

Tyres: 26×1.95″ MTB

【21 Speeds Professional Drive Train】- 21 speeds shimano drive train is precise and simple to control, a wide range of gears gives you more control for climbing and room to get low on descents, corners and jumps. The brake system consists of a double disc-Brake, Ensures total control in every situation.

【Mountain Bike With Lockable Shock Absorbing Front Fork】- These all terrain MTB feature with lockable shock absorbing front fork，The thickened outer wall is more resistant to shocks. The shock absorbers help absorb shocks. The parallel bars can adapt to pressure road conditions. Greatly improve the comfort during riding and allows people to enjoy riding

【High Quality Steel Disc Brake System】-The brake system consists of a double disc-Brake, Ensures total control in every situation In order to ensure your riding safety, our bicycle’s front and rear brakes use high-quality steel disc brake systems, and you can stop your bicycle as soon as 2 seconds.

【29 Inch Large Wheel Set】-Upgrade 2.10-inch wide tires, the large wheel set has a small angle across obstacles, and there is no bumpy feeling on the bumpy road with small obstacles, easy to control and save effort, and the large tread brings better grip and speed

【High Quality Aluminium Alloy Mountain Bike Frame 】-Our mountain bike has a High Quality Aluminium Alloy Frame for riding, corrosion resistant and very easy to clean and maintain. The frame size 17.5 inch is Suitable for cyclists between 175cm and 195cm in height With the help of High Quality Aluminium Alloy Frame, you don’t need to worry about damage by accident and short service life.

【Assemble Guidance】- This bike arrives 90% assembled, You need to assemble the front wheel, pedals, handlebars, seat and inflate the tires. If you have any doubts about the installation, you can check our installation video to help you, or take your bike to a local bicycle store for assistance, which may incur additional costs for buyers