125cc Quad/ATV

Regular price £1,399 Sale price £1,140 Save £259
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Conquer Any Terrain with the OneATV™ PX4S 125cc Petrol Quad Bike

Get ready for the ultimate off-road experience with the OneATV™ PX4S, a powerful 125cc petrol quad bike built for adventure. Designed for riders who demand durability, speed, and smooth handling, the PX4S takes on challenging terrains with ease. Whether you're tackling dirt trails or open fields, this quad ensures unmatched performance and control.


Why Choose the OneATV™ PX4S?

  • High-Performance 125cc Engine: The 4-stroke air-cooled engine delivers a thrilling top speed of 55 km/h, providing an exhilarating ride for any off-road enthusiast.
  • Effortless Handling: The automatic transmission with chain drive and reverse gearing ensures smooth acceleration and easy manoeuvrability in any situation.
  • Advanced Suspension: Featuring hydraulic front and rear shocks, the PX4S offers a comfortable ride, even on rugged terrains.
  • Reliable Braking System: Equipped with hydraulic brakes on both front and rear wheels, delivering responsive stopping power for added safety.
  • Pneumatic Off-Road Tires: High-traction tyres provide excellent grip and stability, making them perfect for dirt, grass, and gravel trails.
  • Built to Last: The steel frame ensures long-lasting durability, capable of withstanding the demands of adventurous riders.
  • LED Lights for Visibility: Front LED headlights and indicators improve safety for low-light rides, making evening adventures more secure.

Assembly & Maintenance

  • Assembly Required: The PX4S comes partially assembled with easy-to-follow instructions. Allow approximately 30–40 minutes for final setup using the provided tools.
  • Fueling Guidelines: Use unleaded petrol only. Check fuel levels, brakes, and tyre pressure before each ride to ensure safe operation.

Take Your Adventures to the Next Level

The OneATV™ PX4S is the perfect quad for riders who crave speed, performance, and reliability. With its rugged design, advanced suspension, and reliable braking system, this quad is built to handle any challenge while ensuring a safe and comfortable ride.


Order Today and Ride with Confidence!

RiiRoo offers free UK mainland delivery, with next-day shipping available for orders placed before 1 PM.

Get the OneATV™ PX4S now and explore the thrill of off-road riding like never before!

📣 Standout Features 📣

  • 3 Gears | Forward | Reverse | Neuteral
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  • Hand Guards
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  • Hydraulic Brake System
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  • Hydraulic Shock Absorbers
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  • Mirrors
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  • LCD Dash Screen
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  • Double Aluminum Exhaust Pipes
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  • LED Headlights + Indicators + Taillights
  • Speed & Performance

  • Battery Spec: 12V5AH
  • Battery Type: Lead Acid
  • Approx Max Speed: 55KM/H
  • Speed Limiter: No
  • Transmission: Chain Drive
  • Gears: 3 Forward & 1 Reverse
  • Cylinders: Single
  • Stroke: 4-Stroke
  • Cooling Method: Air Cooled
  • Displacement: 125cc
  • Petrol Type: Unleaded
  • Lubrication: Combined - Force Feed & Splash
  • Suspension & Brakes

  • Front Brakes: Hydraulic
  • Rear Brakes: Hydraulic
  • Front Shocks: Shock Absorbers
  • Rear Shocks: Shock Absorbers
  • Brake Type: Hydraulic
  • Suspension Type: Shocks
  • Dimensions & Weights

  • Dry Weight: 76KG
  • Box Dimensions: 64 x 138 x 77CM
  • Box Weight: 135KG
  • Product Dimensions: 140 x 105 x 100CM
  • Product Weight: 76KG
  • Max User Weight: 120KG
  • Other

  • Frame Material: Steel
  • Start-Up Method: Electric Start
  • Working Lights: Yes
  • Delivery to the United Kingdom is on a next day service as long as you order by 1 PM and it is included in the price :)

    Delivery to Northern Ireland is a 2-3 day service; however, this will incur a surcharge :(

    Please Note: Shipping orders and returns outside of the UK will incur a customs fee, so please be sure to factor this in when ordering or returning items.

    Given the varied sizes of the products on offer, we are unable to calculate shipping for you at checkout, therefore please contact our support so they can get a delivery price for you. 

    As an alternative, you can checkout as usual and wait for our customer service team to get in touch with you to provide a quote. 

    We also can ship to most European countries; however, you will need to contact our customer service team for a delivery quote.

    Most of our products will be delivered using a specialised carrier service, and because of this, it is essential you have someone to accept delivery on the scheduled date specified.  A failed delivery will incur additional charges :(.

    Now that we have started selling Petrol dirt bikes, buggies, and quad bikes, we thought it would be a good idea to provide an explanation of the different age ranges that these toys are suitable for.

    Providing a specific age range for these toys is extremely difficult, due to the fact that children come in all different shapes and sizes. Also, what is deemed acceptable to one parent isn’t acceptable to another.

    For that reason, please take this as a rough guideline of the ages these toys are suitable for. It goes without question that the suitability of each product we sell is at the parents discretion. The weight, height and skill level of the person using the toy also needs to be considered.

    We Have 2 Main Categories of Bikes - Dirt Bikes & Pit Bikes

    Pit bikes are generally smaller than dirt bikes in appearance and features. This makes it difficult to choose an appropriate bike since there are so many different varieties of bikes. 

    We ask that you take care when ordering your bike to ensure it is the right weight, height and power and features you are looking for.

    The Pit and Dirt Bikes have a minimum user age of 15+. These are extreme guidelines and will vary depending on the height, weight and skill level of each child.

    We Have 3 Main Categories of Quad Bikes

    There are no maximum ages for these quad bikes. However, OneMoto has a guideline for minimum age use.

    Mini Quads

    These quad bikes are designed for children from the age of 7 and upward. The suitability of each product we sell is at the parents discretion. The mini quads range from 250w to 500w in the electric range and 50cc - 80cc in the petrol range.  We will have more powerful versions under the same category, however, based on customer feedback these should be reserved for much older kids and adults.

    Kids Quads

    These quad bikes are designed for children from the age of 10 and upward. The suitability of each product we sell is at the parents discretion. The child quads range from 500w - 1000w for the electric range and  50cc - 250cc for the petrol range.

    Adult Quads

    There really isn’t a minimum or maximum age for the adult quads, so there was no need for us to set any other guidelines for them other than they are designed specifically for adult use. The adult quad bikes range from 150cc+.

    Buggies & Go Karts

    There are no maximum ages for these buggies and go karts. However, OneMoto has a guideline for minimum age use which is 6+. With this, let us stress that this is purley at a parent’s discretion. Bear in mind that these are pretty powerful machines.

    Customer Reviews

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    Why choose us?

    Because we are One

    OneMoto™ has been years in the making, taking all the learnings from our sister site RiiRoo.com.  Two Sites One Goal: Get Kids & Adults in the OutDoors by Providing Exciting & Enticing Products!

    Testimonials

    Couldn't have asked for more.  It got delivered in 2 days and it is exactly what they said it would be! The manual was missing from the box and their support sent it electronically within the hour!

    Maria W

    The choice of products on offer is reason enough to spend hours on their website.  I must have watched at least 30 product videos before I pulled the trigger.  Quick Delivery and a good product.

    Louise Pertonu