2026 Beta Trials

The wait is over

2026 Beta Trials

Beta EVO FACTORY 4T 300 2026 - Image 1
Beta EVO FACTORY 4T 300 2026 - Image 2
Beta EVO FACTORY 4T 300 2026 - Image 3
Beta EVO FACTORY 4T 300 2026 - Image 4
Beta EVO FACTORY 4T 300 2026 - Image 5
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Beta EVO FACTORY 4T 300 2026

The wait is over

RRP: £7,495.00
  • EVO 4T 300 MY 2026
  • Beta is launching the new EVO My 2026 with a continued development that has helped the EVO line in becoming the best-selling trials model in the world. Beta engineers have continued the development of the EVO range for My 2025 with an all-new suspension package that improves the overall balance and rideability of the line.
  • The EVO range is one of the most extensive and continues to offer a total of six different models, each with its own character and able to meet the needs of all riders, raising the potential and level of enjoyment that each experiences. Proof is the significant presence of EVO models in the paddocks of every form of racing.
Trials
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Tech Specs

Chassis

  • Frame: Single wave aluminium beam
  • Wheelbase: 1305 mm
  • Max Length: 1990 mm
  • Max Width: 850 mm
  • Max Height: 1115 mm
  • Seat Height: 660 mm
  • Ground Clearance: 310 mm
  • Footrest Height: 348 mm

Fuel Tank

  • Capacity: 2.8 L
  • Reserve: 0.5 L

Cooling System

  • Capacity: 600 cc

Front Suspension

  • Type: Hydraulic fork
  • Fork Diameter: Ø 39 mm
  • Wheel Travel: 165 mm

Rear Suspension

  • Type: Monoshock
  • Shock Absorber Stroke: 60 mm
  • Wheel Travel: 180 mm

Brakes

  • Front: Disc Ø 185 mm with 4-piston caliper
  • Rear: Disc Ø 160 mm with 2-piston caliper

Wheels & Tyres

  • Front Rim: 21 × 1.6 – 32 holes
  • Rear Rim: 18 × 2.15 – 32 holes
  • Front Tyre: 2.75 – 21
  • Rear Tyre: 4.00 R 18

Engine

  • Type: Single-cylinder, 4-stroke, 4 valves, liquid-cooled
  • Bore × Stroke: 84 × 53.6 mm
  • Displacement: 297.3 cc
  • Compression Ratio: 9.7 : 1

Ignition & Electrical

  • Ignition: Electronic
  • Spark Plug: NGK MR7BI-8
  • Spark Advance: Variable

Fuel & Lubrication

  • Fuel Supply: Carburettor
  • Carburettor: Mikuni
  • Lubrication: SAE 10W/50 (900 cc)

Transmission

  • Clutch: Wet multi-disc clutch
  • Primary Transmission: Z. 18 / 63
  • Gearbox: 5-speed
  • Secondary Transmission: Chain

Fuel Consumption

  • 3.3 L / 100 km (estimated)

CO? Emissions

  • 77 g/km (estimated)

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About John Lee Motorcycles

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.

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