2024 BETA 450 RX  Featured

Stock #450329
MSRP: $10,999 USD
Pricing Notes: No freight and no Setup Charges!! Price is plus applicable sales tax, title and doc fee.
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Beta’s prototype testing has been going on for more than 4 years and the manufacturer from Florence, Italy is ready to release the production model to the masses, the wait is over for the all-new 2024 450 RX Motocross model!

Beta has kept no secrets in their desire to chase the world of motocross, with the early USA introduction of the 300 RX 2 stroke model in 2021 about the same time as the first shots were taken of the prototype 450 RX 4 stroke model racing in the MXGP championship. It is officially the first four-stroke motocross bike built by Beta, the 450 RX model was designed to carry on the Beta tradition of Rideability. To offer a ride that is more forgiving while still providing performance that will encourage aggressive riding.

The design is completely new from the ground up. Frame, engine and all other components are of the highest level of performance and lightness. Beta motorcycles are hand built in Florence, Italy and have been for more than 115 years. The team of engineers are every-day riders and understand the values that a motocross rider is looking for. 

Features:  MX chassis and frame, aluminum sub-frame, sleek rear fender and side panels, KYB 48mm front forks and 50mm rear shock, Maxxis tires, five speed transmission, wet diaphragm style clutch, blue anodized Excel rims, red anodized dual material rear sprocket, extra wide machined aluminum footpegs with stainless steel pins, and included customized bike stand and four different throttle pulleys to customize throttle response.

  • Status:
    New
  • Vehicle:
    2024 BETA 450 RX
  • VIN:
    ZD3E7M486R0450329
  • Model Number:
    450RX
  • Stock Number:
    450329
  • Title:
    Clear
  • Location:
    Supreme Power Sports
  • Warranty:
    Manufacturer's w/ Extended Available

BRAKES

  • Brake Brand Name:
    Nissin
  • Front Brake Diameter (in):
    10.2
  • Front Brake Diameter (mm):
    260
  • Front Brake Type:
    Hydraulic Disc
  • Rear Brake Diameter (in):
    9.4
  • Rear Brake Diameter (mm):
    240
  • Rear Brake Type:
    Hydraulic Disc

ENGINE

  • Bore (in):
    3.82
  • Bore (mm):
    97
  • Carburetion Brand:
    Keihin
  • Carburetion Type:
    Carburetor
  • Carburetor Size (mm):
    46
  • Carburetor:
    Yes
  • Compression Ratio:
    13.4
  • Cooling:
    Liquid
  • Cylinders:
    1
  • Displacement (cc):
    449.3
  • Displacement (ci):
    27.4
  • Engine Stroke:
    4-Stroke
  • Engine Type:
    Single-Cylinder
  • Fuel Requirements:
    Regular
  • Fuel Type:
    Gas / Oil Premix
  • Number Of Carburetors:
    1
  • Starter:
    Electric
  • Stroke (in):
    2.39
  • Stroke (mm):
    60.8
  • Valve Configuration:
    Reed Valve

EXTERIOR

  • Body Material:
    Aluminum
  • Chain Guard:
    Yes
  • Exhaust Guard:
    Yes
  • Foot Peg Location:
    Driver
  • Frame:
    Steel
  • Stand Type:
    Kick

SEATS

  • Number Of Seats:
    1
  • Seat Height (in):
    37.2
  • Seat Height (mm):
    944.9
  • Seat Location:
    Driver
  • Seat Type:
    One-Piece

STEERING

  • Steering Control:
    Handlebar

SUSPENSION

  • Front Adjustable Fork Pre-Load:
    Yes
  • Front Adjustable Rebound Damping:
    Yes
  • Front Suspension Brand Name:
    KYB
  • Front Suspension Size (in):
    1.9
  • Front Suspension Size (mm):
    48
  • Front Suspension Type:
    Inverted Fork
  • Front Travel (in):
    12
  • Front Travel (mm):
    304.8
  • Number Rear Shock Absorbers:
    1
  • Rear Adjustable Rebound Damping:
    Yes
  • Rear Adjustable Shock / Spring Pre-Load:
    Yes
  • Rear Suspension Brand Name:
    KYB
  • Rear Suspension Material:
    Aluminum
  • Rear Suspension Size (in):
    50
  • Rear Suspension Size (mm):
    1270
  • Rear Suspension Type:
    Twin Sided Swing Arm
  • Rear Travel (in):
    11.8
  • Rear Travel (mm):
    299.7

TECHNICAL SPECIFICATIONS

  • Dry Weight (kg):
    103.9
  • Dry Weight (lbs):
    229
  • Engine Displacement to Weight (cc):
    1.96
  • Fuel Capacity (gal):
    1.8
  • Fuel Capacity (l):
    6.8
  • Ground Clearance (in):
    13
  • Ground Clearance (mm):
    330.2
  • Wheelbase (in):
    58.4
  • Wheelbase (mm):
    1483.4

TRANSMISSION

  • Number Of Speeds:
    5
  • Primary Drive (Rear Wheel):
    Chain
  • Transmission Type:
    Manual

WHEELS & TIRES

  • Front Tire (Full Spec):
    Maxxis 21 Inch
  • Front Tire Speed Rating:
    100
  • Front Tire Width:
    90
  • Front Wheel Diameter:
    21
  • Rear Tire (Full Spec):
    Maxxis 19 Inch
  • Rear Tire Speed Rating:
    90
  • Rear Tire Width:
    110
  • Rear Wheel Diameter:
    19
  • Tire Brand:
    Maxxis®
  • Tube / Tubeless:
    Tubed

Our Location


Supreme Power Sports
1905 Main St.
Lewiston, ID 83501