Model 9522PRO. The ideal speed of 9522PRO is 85KM/H, but the actual speed will be affected by other factors such as the venue. The actual speed of 9522PRO is about 70KM/H. The ideal speed of 16101 is 50KM/H, but the actual speed will be affected by other factors such as the site.The actual speed of 16101 is about 40KM/H.