The SM 450 R and SM 510 R models are genuine replicas of the world Motard championship winning machines ridden by the official Husqvarna team. The two engines that differ only in strokes of 60.7 and 67.8 mm respectively now have larger sized valves.
The intake valves have increased from 33 to 37 mm and exhaust from 28.5 to 31 mm. The intake cams are also new as are the redesigned inlet and exhaust manifolds. The SM 450 model now benefit from a newly designed Gianelli exhaust system that improves performance and meets with Euro 3 standards.
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