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Only $10 for all 2026 SX, MX, and SMX series.
Specifications
• Lighter flywheel and smaller diameter crankshaft allow quicker throttle response
• Recalibrated power valve to match power delivery of new crankshaft and crankcase
• New narrower radiator shrouds to allow better rider movement
• Quick air filter access
• Engine type: single cylinder, 2-stroke, Beta Progressive Valve (BPV) power valve system
• Footrest height: 409 mm (16.1")
• Frame: double cradle molybdenum steel
• Lubrication: pre-mix
• Spark plug: NGK BR9ECM
• Main photo shows 125 model
Beta website