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A 2006 aluminum framed Honda CR500 two-stroke would have been a very popular conversation piece at Honda dealerships all around the world the mid 2000.
Source: 2006 SLR HONDA CR500 AF CONVERSION : 2-STROKE TUESDAY – Dirt Bike Magazine

The Dirt Bike Academy offers adventure bike and dirt bike training classes for both complete beginners and experienced riders in Pennsylvania’s Pocono Mountains. We teach kids and adults in separate classes for dirt bike riders and adventure bike riders. Our beginner coaches and classes are fully certified by the Motorcycle Safety Foundation.