RX 350
THE KINGPIN
OVERVIEW
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.
Features
NISSIN BRAKING SYSTEM
Equipped with a compact, lightweight, motocross-derived Nissin front brake setup that offers immense stopping power with excellent lever modulation.
CHROMOLY STEEL FRAME
Celebrated for its natural flex, the chromoly frame absorbs harsh energy that aluminum frames transfer directly to the rider, providing immediate confidence through high-speed rollers.
SOFTER COMPOUND GRIPS
New, softer grips reduce rider fatigue and arm pump by absorbing trail vibration, allowing you to stay on the gas longer.
FACTORY GRAPHICS KIT
An eye-catching red and black livery conveys an aggressive and contemporary image to accompany the launch of the 250 4-stroke.
HEAVY DUTY CHAIN GUIDE
Features a reinforced structure to withstand mud, rocks, and hard impacts from ruts and logs. A straighter, stronger guide ensures final drive stability, prevents thrown chains, and protects the swingarm.
FLEXFIX HANDLEBAR MOUNTS
Handlebar risers utilize silent-block rubber mounts to isolate the rider's hands from engine vibration.
DUNLOP GEOMAX MX 34 TIRES
Next-generation Dunlop tires significantly improve cornering bite while shedding unsprung weight, allowing the suspension to react faster to acceleration bumps and square-edge chop.
PHOTO GALLERY
ENGINE SPECIFICATION
| 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 |
CHASSIS SPECIFICATION
| 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 |
$10,290.00 MSRP
- Set up fee and paperwork fees apply
- Specifications subject to change without notice.