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For 2019, the CRF450 receives a host of updates for, making it lighter and more powerful. Rider comfort has been increased through the addition of adjustable mounting positions for the new Renthal Fatbar handlebar. Updated cylinder-head design, with changes near the exhaust ports, achieves improved exhaust efficiency and contributes to increased power across the rev range
• Revised clutch lifter and pressure plate allow optimum oil supply to clutch plates and friction discs, resulting in enhanced durability
• New scavenge-pump design features two 12mm pumps, up from a single 16mm pump, for increased lubrication and reduced friction in the engine, improving peak performance and enhancing over-rev characteristics
• All-new piston oil jet uses five nozzle holes and a refined pattern to improve cooling efficiency and reduce knocking, enabling a precise ignition-timing setting for optimum power delivery
• Shift sensor adopted to establish an ignition map for each gear, enabling optimum running.

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