The Yamaha YZ 105, a popular youth Motocross bike, typically has a top speed of around 50 to 60 mph (80 to 97 km/h). This speed can vary based on factors like rider weight, terrain, and bike condition. It's designed for younger riders transitioning to more powerful bikes, emphasizing both performance and safety.
about125mph
about 98 to 104
swer is 65 to 70
i would say about 79
around 60-70mph
About 80-90 mph
a yz 85 goes about any where between 60 and 70 m.p.h
I have a yz 80 2001 small wheel and does about 75 mph
Around 150km/h
75 mph
Stock 55-60
about 100 mph