Beta RX 300 2T Motocross Bike, New 2025, In Stock & Ready, Special Offer Now On!

Description

2025 Beta RX300 Motocross / Cross Country - In stock & Ready to ride today, special offer now on. Please contact Chas for more information

With the Model year 2025, RX 300 underwent a series of important interventions to the engine and to the suspension and frame, which totally break away from the Enduro world and, like RX 450, configure a standalone project, completely dedicated to Motocross.

Rear sub-frame and filter box: in line with the use of the new frame, the new RX 300 inherits its older sister’s aluminium sub-frame, as well as the filter box.

Fork: the Kayaba fork with 48 mm stems has greater travel than Enduro models, and receives a new calibration that recreates the perfect set-up together with the new single shock, ensuring a stable, fast and precise bike, yet always easy and precise in its response.

Single shock: the single shock is a new addition to this model, and, as for the 450, it switches to a 50 mm piston that allows greater support in jump landing, thanks to greater hydraulic braking, and guarantees constant performance with heavy use, where temperatures are on the rise.

Braking system: Nissin with floating calipers and 260 mm discs at the front and 240 mm at the rear. Particularly at the front, the new caliper – inherited from its older sister – stands out; smaller, lighter and better performing than the previous one, it ensures a much better performance when letting off the throttle at the limit. At the rear, the new pump, featured for the first time on Enduro racing models, is characterised by greater braking power and greater modularity, as well as a different attachment to the frame.

Radiators: RX 450 also gives the new 300 2T its radiators, redesigned at the top compared to the previous model to have a better steering angle and optimize the cooling liquid’s internal flow.

Final ratio: the rear sprocket has 49 teeth, instead of 48, for lightning-fast accelerations!

Plastic parts: while the front conveyors retain the same shape, the rear features a new, sleek and aggressive tail section that, not being a load-bearing element, engages in the new aluminium frame. The smaller plastic tank for the RX 300 now has a capacity of about 7lt.

Chain: the chain without o-ring is lighter and smoother than the previous one; all details that matter to make a difference on the track!

Engine and exhaust: if the bike is completely new suspension and frame-wise, the new engine features are even more game-changing, and bring the performance of the RX 300 to the top of its class. The totally new engine consists of a new cylinder with more exhaust and injection timing, a new head with greater compression, and modified intake crankcases to increase ventilation. The result of this intervention is a power unit with a significantly higher thrust than in the past, which still maintains the exceptional thrust at low speeds that has always distinguished Beta’s 300 2T, despite the peak maximum power at high speeds being higher, as needed on a motocross track. The greater power of the engine is transmitted to the rear wheel by a totally redesigned 5-speed gearbox, with a specific gear spacing for MX use, and by a stiffer spring that preloads the clutch pack more to prevent slippage. This new ensemble has been perfectly tuned by dedicated mappings, new carburettor calibrations (Keihin PWK 38), and several springs on the appropriately adjusted exhaust valve. The exhaust system, also completely redesigned, offers a dedicated expansion and a short silencer, in full Motocross style.
In addition to this, there are a series of updates common to the two models, such as:

Footpegs: the 2025 model receives new, less bulky footpegs, with an enhanced grip performance provided to the rider’s boot, to keep the bike under control at all times.

The RX is delivered with customised kickstand and 4 different throttle pulleys, to customise the accelerator response.

- £8695.00 (£7245.83 + VAT)
- Unbelievable Bike For All Round Riding
- Finance available subject to status
- Nationwide next-day delivery available from £85 + VAT
- All part exchanges considered
- Official Beta Dealer
- Over 55 Years Of Off-road Experience

Please feel free to contact us on 01933312827 / [Phone number removed]
Email: [Email address removed. Click Email button to contact us.]
Website: [Website URL removed]






About Us:
John started work in the Motorcycle Trade in 1955, working for 2 large London Dealers for 10 years.
His ambition was to own his own dealership, so moved to Northamptonshire and purchased the shop where we are today in Higham Ferrers, that was 1964.
Since opening we have been an agent for Honda, Yamaha, Suzuki, plus all major Trials agencies. Today we are an agent for Yamaha (light weight) Kymco and quality used road machines of all makes. This includes off road Gas Gas Beta and Sherco Trial Machines, also Gas Gas Enduro New and Used Machines.
John Lee Motorcycles

In his hay day John achieved many successes including being works rider for Francis Barnet (1958/9), James, BSA Dealership Sponsored, Bultaco plus others. Attaining The South Midland Trials Championship for 7 consecutive years and a total of 12 times, and to date this has never been beaten.

In 2008 we became John Lee and Sons, we welcomed 2 of our 4 sons Jack and Charley into the business.
Jack is our competition man in the workshop. Training at The Honda Institute becoming a Motorcycle Technician enabling him to work on road machines as well as off road machines. 2007 saw Jack leaving us temporarily to go on an experience of a life time, he was minder for World Championship trials rider James Dabill. In december 2010 he hung his boots up to return to us and has set up a dedicated competion workshop to pursue his desire of riding Enduro and Trials again. Jack has always been a good Trials Rider and on a very snowy Boxing Day in 2010 he won The 85 Wild and Woolly MX, the worlds oldest MX race.

Charley is shop manager when Johns not around, he deals with all spares, accessories and the day to day running of the shop. He is also an Expert Trials Rider finishing runner up in the South Midland Championship 2010. Got any problems? Then Chas is your man.
We are ably helped with David in our workshop for Road Machines, he is also Honda Institute trained and competed in the Honda Mechanic of the year competion on several occasions. He works on all makes of Japanese Bikes and has been with us for over 30 years.

Chas is in the shop, and is very knowledgeable about most things on 2 wheels and is always there to assist or advise. As well as David, last but not least is Lesley, Johns wife, who is mostly office bound but turns her hand to most things.

WE ALL WELCOME YOU TO OUR FAMILY RUN SHOP

Opening Hours:
Mo: 09:00 AM to 05:30 PM
Tu: 09:00 AM to 05:30 PM
We: 09:00 AM to 05:30 PM
Th: 09:00 AM to 05:30 PM
Fr: 09:00 AM to 05:30 PM
Sa: 08:30 AM to 01:00 PM
Su: Closed

Ad ID: 1503629227

Exact specification may vary from the details on this page. Please contact the seller to reconfirm any details before purchasing. See Terms & Conditions for further information.