how far can a grizzly bear run
Les. Brown bears-are extremely fast, capable of running in short bursts as high as of 40 mph (64 km/h). Polar bears-have been clocked at a top speed of 35 mph (56 km/h), along a a road in Churchill, Canada. Grizzly bears-can reach top speeds of up to 30 mph (48km/h), but they can't maintain that speed for very long. American Black bears-can reach running speeds of up to 25 mph (40km/h). Bears aren't necessarily built for speed, but are capable of running fast when necessary. 0. Oct 13th, 2010 at 12:49 AM.