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Overview:
The popular RX is developed with a racing attitude. This motorcycle has a rare combination of linear speed and Rideability on the motocross track. Assembled with top level components, this premium machine is built as a contender. Not only is the RX the best looking bike at the track, but also has the performance to back up its undeniable appeal.
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Features: Six speed transmission, plated exhaust pipe, adjustable power valve, 19" rear wheel, electric starter, billet aluminum footpegs, racing graphics & seat cover, custom power delivery for MX, & KYB front and rear MX suspension
New Kayaba C46 rear shock. The collaboration of Kayaba and Beta led to the development of a shock that is particularly effective in enhancing the Rideability of the bike under all conditions. KYB shocks are seen as a gold standard in the racing scene in terms of their ability to absorb big square-edged hits while at the same time, providing a supple ride over the smaller, lower speed bumps.
Extra wide billet aluminum foot pegs: with stainless steel gripper pins provide the rider with a strong, yet light platform.
New shrouds are narrower then before to give the rider more freedom of movement, especially in corners. Designed to be sleek, simple, & attractive.
Michelin Starcross, known for their motocross performance come standard on every 300 RX
Beta Power Valve allows the rider to adjust power delivery to dial in the right hit for the situation
| MODEL | 300 RX |
| ENGINE TYPE | Beta Built single cylinder, 2-stroke, liquid cooled, with BPV power valve system and counter balancer, electric start with back-up kick starter sold as an option |
| BORE | 72mm |
| STROKE | 72mm |
| DISPLACEMENT | 293.1cc |
| COMPRESSION RATIO | 11.63:1 |
| VALVE TRAIN | Beta Progressive Valve (BPV) |
| IGNITION | AC-CDI Kokusan |
| SPARK PLUG | NGK BR8ECM |
| LUBRICATION | Pre-Mix |
| FUEL SYSTEM | Keihin PWK 38mm |
| CLUTCH | Wet Diaphragm-style |
| TRANSMISSION | 6 Speed |
| FINAL DRIVE | O-ring chain |
| FRAME | Molybdenum steel / Double Cradle w/ quick air filter access |
| WHEELBASE | 58.6" |
| SEAT HEIGHT | 37" |
| GROUND CLEARANCE | 13.3" |
| FOOTREST HEIGHT | 12.4" |
| DRY WEIGHT | 220 lbs |
| FUEL TANK CAPACITY | 2.51 US Gallons |
| FRONT SUSPENSION | 48 mm KYB AOS Closed Cartridge with adjustable compression & rebound |
| REAR SUSPENSION | KYB 45 mm body with adjustable rebound and high/low speed on compression adjustment |
| FRONT WHEEL TRAVEL | 12.2" |
| REAR WHEEL TRAVEL | 12.4" |
| FRONT BRAKE | 260 mm floating rotor |
| REAR BRAKE | 240 mm rotor |
| FRONT/REAR RIM | 21" (Front) 19" (Rear) |
| FRONT/REAR TIRE | Michelin Starcross |
| SPECS | *Specifications subject to change without notice. |
