RR Racing 125 cc 2-stroke
The RR Racing 125 cc 2-stroke is a stunning achievement: in addition to all the above it boasts a suspension system expressly calibrated for this engine displacement and a new engine configuration.
• Same front and rear suspension as the larger Racing models.
• New cylinder, with modified exhaust port and timing charts.
• New exhaust flange.
• New exhaust valve system and new boosters.
• New clutch cover with air bleed system to give the clutch improved feel, a modified oil filler cap position.
• New clutch basket.
• New expansion chamber.
Improved low-rev power delivery combined with greater high-rev acceleration, resulting in better performance across the rev range and more linear, manageable power output. The outcome is a considerably broader riding range, a crucial feature on a small-displacement engine.
Type: Beta-Built single cylinder, 2-stroke, liquid cooled, with BPV power valve system.
Compression Ratio: 15:1
Exhaust Valve: Beta Progressive Valve (BPV)
Ignition: AC-CDI Kokusan
Spark Plug: NGK BR9ECMVX
Carburetor: Keihin PWK 36mm
Clutch: Wet multi-disc
Final Drive: O-ring chain
Frame: Molybdenum steel/double cradle w/quick air filter access.
Seat Height: 36.6”
Ground Clearance: 12.8”
Footrest Height: 16.1”
Dry Weight: 207 lbs. (wet weight, no fuel)
Fuel Tank Capacity: 2.25 US gallons
Front Suspension: 48 mm Sachs Closed Cartridge fork w/skf seals, adjustable compression and rebound
Rear Suspension: Aluminum Body Sachs shock w/adjustable rebound and hi/low speed compression
Front Wheel Travel: 11.6”
Rear Wheel Travel: 11.4”
Front Brake: 260mm rotor
Rear Brake: 240mm rotor
Front/Rear Rim: 21” (Front) 18” (Rear)
Front/Rear Tire: Enduro Competition