Skip to product information
1 of 1

LEVEL 10 PERFORMANCE MOTORSPORTS

2027 Beta RX 350 2-STROKE

2027 Beta RX 350 2-STROKE

Regular price $10,290.00 USD
Regular price Sale price $10,290.00 USD
Sale Call (386) 944-9160 for availability
Shipping calculated at checkout.

2027 350 RX: New engine cases, bore and stroke, as well as a twin-plug head to ignite the special power only a big-bore 2-stroke can provide. The longer crankshaft, combined with the final gearing ratio of 14/47, provides a large amount of torque and overall horsepower that will turn some heads. This 350 motocrosser will thrive in many different track conditions. Clearly in a class of its own!

The 2-stroke range of motocross models also have been refined with updates to the following:

-A new piston for the 350 that saves weight as well as reduces friction, resulting in a 1.5 hp gain.

-Updated final gearing for the 250 to improve starts.

-New muffler that is stronger than the prior model

-Dunlop MX 34 tires

With more torque, increased horsepower, and a refined chassis setup, the 350 RX doesn't just compete—it defines a new standard for what a big-bore two-stroke is capable of achieving.

ENGINE TYPE Beta Built single cylinder, 2-stroke, liquid cooled, with BPV power valve system and counter balancer, electric start.
BORE 78mm
STROKE 73.6mm
DISPLACEMENT 351.7cc
COMPRESSION RATIO 12.45:1
EXHAUST VALVE Beta Progressive Valve (BPV)
IGNITION AC-CDI Kokusan
SPARK PLUG Dual NGK MR7CI8
LUBRICATION Pre-Mix
CARBURETOR Keihin PWK 38mm
CLUTCH Wet diaphram style
TRANSMISSION 5 Speed
FINAL DRIVE Non-O-ring chain
FRAME Molybdenum steel / Double Cradle w/ quick air filter access
WHEELBASE 58.2"
SEAT HEIGHT 37.2"
GROUND CLEARANCE 13.4"
FOOTREST HEIGHT 16.6"
DRY WEIGHT 220.5 lbs
FUEL TANK CAPACITY 1.85 US Gallons
FRONT SUSPENSION 48 mm KYB AOS Closed Cartridge with adjustable compression & rebound
REAR SUSPENSION KYB 50 mm body with adjustable rebound and high/low speed on compression adjustment
FRONT WHEEL TRAVEL 12"
REAR WHEEL TRAVEL 11.8"
FRONT BRAKE 260 mm floating rotor
REAR BRAKE 240 mm rotor
FRONT/REAR RIM 21" (Front) 19" (Rear)
FRONT/REAR TIRE Dunlop Geomax MX 34
View full details