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Best mountain bikes - October 2025

Last Updated - 29/10/2025

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Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Triad

TRIAD X3 700c 21 Speed - Fully Fitted Hybrid Bicycle (Matte Black, Ideal for: 15+ Years, Unisex) Frame: 18 Inches

Triad

A$590.00

More Details
Main highlights
- This bicycle is built on a lightweight and comfortable Alloy frame and comes in a standard 18” frame size
- The Shimano Tourney 21-Speed derailleurs were smooth in shifting, The Mechanical Disc brakes ensures powerful and balanced braking
- Fast rolling DSI 700x35C tires with Double Wall Alloy rims
- A sleek and lightweight hybrid bicycle, ideal for commutes and long distances rides.
- 99% assembled And Fully-Fited And Ready To Ride
A$590.00
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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

CyclingDeal

CyclingDeal Trail Breaker Mountain Bike Cross Country Hardtail MTB Bicycle Shimano Gears 24 Speed - Quality Aluminium 18" Frame with 29" Wheels

CyclingDeal

A$399.99

More Details
Main highlights
- Seatpost: SAGA Aluminium Alloy 30.9mm x 350mm | Saddle: SAGA Steel Rail Comfortable MTB Saddle | Shifters: SHIMANO ALTUS M310, 3 x 8 Speed | Brakes: SHIMANO MT-200 Disc Brakes | Disc Rotors: 160mm Disc Rotors
- Model: TRAIL BREAKER 29er MTB | Frame: CD Aluminium Alloy. Frame Size: 18" Medium | Fork: SAGA 29" Suspension with Lockout. Travel: 100mm | Stem: SAGA Aluminium Alloy. Length: 90mm | Handlebar: SAGA Aluminium Alloy. Width: 700mm, Sweep: 6 Degree
- Derailleurs: Front: SHIMANO ALTUS 3 Speed FD-M310 ; Rear: SHIMANO ALTUS 8 Speed RD-M310 | Crankset: SHIMANO TOURNEY TY-301 24-34-42T Crankset with Chain Guard, 170mm Crank Arm Length | Bottom Bracket: NECO B910, 68 x 115mm, Sealed Bearing | Cassette: SHIMANO CS-HG200, 12-32 Teeth, 8 Speed
- Chain: KMC Z8, 8 Speed Chain 112 Links | Wheels: SAGA 29" Quick Release Double Wall Aluminium Alloy Wheels | Tyres: CST 29” x 2.1" MTB Tyres | Pedals: WELLGO LU-984DU Plastic Pedals, Polymer 9/16" Bearing Axle | Safety Reflectors included | Weight: Around 13.75kg (30.3lbs)
- Assembly: 85% Assembled in the box | WARRANTY: Lifetime warranty on the frame, one-year warranty on the parts except for brake pads, chain tires and tubes
A$399.99
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Flyline

Trinx M136 MTB Mens Mountain Bike 26 inch Shimano Gear 21-Speed Bicycle (Matt Black White/Red, 21 Inches Frame)

Flyline

A$269.00

More Details
Main highlights
- WHEELS - Alloy Double Sealed Bearing Hub, Alloy Double Wall Rim, and CST 26"x1.95" Tyre.
- FRAME AND FORK - 26" x 17"(for height 165-178cm), 19" (for height 178-185cm) or 21" (for height 180cm or over) Alloy Special-shaped Tubes. Internal Cable Routing. Hydraulic Lock-out Suspension Travel 100mm Fork.
- COLOR - Matt Black Red or Matt Black/Blue
- BRAKE - Trinx Alloy Mechanical Disc Brake
- 21 SPEED SHIMANO DRIVETRAIN - Shimano ST-EF500 Shifter Lever. Shimano FD-TZ500 Front Derailleur, Shimano RD-TZ500 Rear Derailleur
A$269.00
4
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

CyclingDeal

CyclingDeal Conqueror Mountain Bike Cross Country MTB Bicycle Shimano Gears 24 Speed - Quality Aluminium 18" Frame with 27.5" Wheels

CyclingDeal

A$379.99

More Details
Main highlights
- Seatpost: SAGA Aluminium Alloy 30.9mm x 350mm | Saddle: SAGA Steel Rail Comfortable MTB Saddle | Shifters: SHIMANO ALTUS M310, 3 x 8 Speed | Brakes: SHIMANO MT-200 Disc Brakes | Disc Rotors: 160mm Disc Rotors
- Model: Conqueror Cross Country 27.5" MTB | Frame: CD Aluminium Alloy. Frame Size: 18" Medium | Fork: SAGA 27.5" Suspension with Lockout. Travel: 100mm | Stem: SAGA Aluminium Alloy. Length: 70mm | Handlebar: SAGA Aluminium Alloy. Width: 660mm, Sweep: 6 Degree
- Derailleurs: Front: SHIMANO ALTUS 3 Speed FD-M311 ; Rear: SHIMANO ALTUS 8 Speed RD-M310 | Crankset: SHIMANO TOURNEY TY-301 24-34-42T Crankset with Chain Guard, 170mm Crank Arm Length | Bottom Bracket: NECO B910, 68 x 122.5mm, Sealed Bearing | Cassette: SHIMANO CS-HG200, 12-32 Teeth, 8 Speed
- Chain: KMC Z8, 8 Speed Chain 110 Links | Wheels: 27.5" Quick Release Double Wall Aluminium Alloy Wheels | Tyres: CST 27.5” x 1.95" MTB Tyres | Pedals: WELLGO LU-984DU Plastic Pedals, Polymer 9/16" Bearing Axle | Safety Reflectors included | Weight: Around 14.5 kg (32 lbs)
- Assembly: 85% Assembled in the box | WARRANTY: Lifetime warranty on the frame, one-year warranty on the parts except for brake pads, chain tires and tubes
A$379.99
5

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

CyclingDeal

CyclingDeal EXPLORER Kids Children Mountain Bike Bicycle MTB WHITE - 21 Speed 24" Wheels 14.5" Frame for 8-12 Years Old

CyclingDeal

A$379.99

More Details
Main highlights
- WARRANTY: Lifetime warranty on the frame, one-year warranty on the parts except brake pads, tires and tubes.
- SUITABLE AGE GROUP: The bike with 24-inch wheels is designed for children from 8 years old to 12 years old, or 50-59 inches (127-150 cm) tall. It's perfect for riding in the parks or on the sidewalk around the neighborhood.
- SPECS: Frame: 14.5". Wheels: 24". Drivetrain: 21(3 * 7) speeds, SHIMANO shifters, derailleurs and cassette, KMC chain. Frame Material: Alloy 6061. Handlebar: Alloy 560mm wide x 6 degree. Pedals: WELLGO polymer 9/16" bearing axle. Safety reflectors and bell included. Seat Height: 28-36 inches (73-91 cm). Kickstand included.
- EASY TO INSTALL: The bike is 85% assembled in the box. A set of allen keys is included for convenience.
- ALL-TERRAIN FUN: 21(3*7) gears, all-terrian tyres and suspension fork work together to help kids ride up and down hills easier and more enjoyable. Mechanical disc brakes offer reliable braking performance to keep the riding safe all the time.
A$379.99

Best mountain bikes - October 2025

TRIAD X3 700c 21 Speed - Fully Fitted Hybrid Bicycle (Matte Black, Ideal for: 15+ Years, Unisex) Frame: 18 Inches

CyclingDeal Trail Breaker Mountain Bike Cross Country Hardtail MTB Bicycle Shimano Gears 24 Speed - Quality Aluminium 18" Frame with 29" Wheels

Trinx M136 MTB Mens Mountain Bike 26 inch Shimano Gear 21-Speed Bicycle (Matt Black White/Red, 21 Inches Frame)

CyclingDeal Conqueror Mountain Bike Cross Country MTB Bicycle Shimano Gears 24 Speed - Quality Aluminium 18" Frame with 27.5" Wheels

CyclingDeal EXPLORER Kids Children Mountain Bike Bicycle MTB WHITE - 21 Speed 24" Wheels 14.5" Frame for 8-12 Years Old

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