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2025 Beta 450 RX in West Bridgewater, Massachusetts — 2025 Beta 450 RX

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Specs
Features

General Information

Manufacturer

Beta

Model Year

2025

Model

450 RX

Model Code

Color

Red

Brakes/Wheels/Tires

Brakes

Front - 260 mm floating rotor

Rear - 240 mm rotor

Front - 260 mm floating rotor

Rear - 240 mm rotor

Rims

Front - 21 in.

Rear - 19 in.

Front - 21 in.

Rear - 19 in.

Tires

Front / Rear - Maxxis

Dimensions

Height

Footrest - 16.1 in.

Weight

Dry - 229 lb. (wet weight, no fuel)

Ground Clearance

13 in.

Wheelbase

58.4 in.

Seat Height

37.2 in.

Drivetrain

Transmission

5 speed

Final Drive

DID drive chain

Engine

4 –stroke, 4-valve

Cooling

Liquid

Cylinders

Single

Displacement

449.3 cc

Bore x Stroke

3.8 x 2.3 in. (97 x 60.8 mm)

Compression Ratio

13.5:1

Clutch

Hydraulic, adjustable diaphragm multi-plate

Fuel System

46 mm Throttle Body with Dual Injectors

Exhaust

Valve - Finger followers with shim adjustment

Ignition

Dual-Map Kokusan with Traction Control

Spark Plug - NGK LKAR8A-9

Dual-Map Kokusan with Traction Control

Spark Plug - NGK LKAR8A-9

Starting

Electric

Lubrication

Twin Oil Pumps with Cartridge Filter and Separate Compartments for Engine and Transmission

Fuel Capacity

1.8 US gal.

Operational

Frame

Molybdenum steel / Double Cradle with push button seat and quick air filter access

Front Suspension

48 mm KYB AOS closed cartridge fork, adjustable compression and rebound

Wheel Travel - 12 in.

48 mm KYB AOS closed cartridge fork, adjustable compression and rebound

Wheel Travel - 12 in.

Rear Suspension

KYB 50 mm body with adjustable rebound and high / low speed on compression adjustment

Wheel Travel - 11.8 in.

KYB 50 mm body with adjustable rebound and high / low speed on compression adjustment

Wheel Travel - 11.8 in.

Features

ENGINE MAPPING: The mapping has been updated with the latest settings that have been tested by the Beta race team. This along with traction control completes the electronic package of the RX model.
FINAL RATIO / REAR AXLE: Rear sprocket has been replaced with a 51 tooth for a quicker "spin-up" of the power delivery. The rear axle diameter has been increased to 22 mm to reduce flex as well as provide better durability.
FOOTPEGS: Enhanced grip performance while being less bulky so rider can maintain control at all times.
HANDLEBAR MOUNTS: Xtrig FlexFix isoelastic bar mounts reduce rider fatigue and vibration. Also allows for flexibility in handlebar adjustment.
SUB-FRAME & FILTER BOX: Subframe has been reinforced in key points that stiffen and strengthen it, maintaining lightness and ability to adsorb stresses. Access to the filter remains on the left side of the bike and is extremely easy and requires no tools to access.
SUSPENSION: Closed cartridge 48 mm KYB front fork and the rear shock have been updated with new valving for better overall performance.

Features

ENGINE MAPPING: The mapping has been updated with the latest settings that have been tested by the Beta race team. This along with traction control completes the electronic package of the RX model.
FINAL RATIO / REAR AXLE: Rear sprocket has been replaced with a 51 tooth for a quicker "spin-up" of the power delivery. The rear axle diameter has been increased to 22 mm to reduce flex as well as provide better durability.
FOOTPEGS: Enhanced grip performance while being less bulky so rider can maintain control at all times.
HANDLEBAR MOUNTS: Xtrig FlexFix isoelastic bar mounts reduce rider fatigue and vibration. Also allows for flexibility in handlebar adjustment.
SUB-FRAME & FILTER BOX: Subframe has been reinforced in key points that stiffen and strengthen it, maintaining lightness and ability to adsorb stresses. Access to the filter remains on the left side of the bike and is extremely easy and requires no tools to access.
SUSPENSION: Closed cartridge 48 mm KYB front fork and the rear shock have been updated with new valving for better overall performance.

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2025 Beta 450 RX

2025 Beta 450 RX

General Information

Brakes/Wheels/Tires

Dimensions

Drivetrain

Engine

Operational

Features

Features

Bettencourts Honda Suzuki

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