I remember that incident. My sister-in-law had a motel in West Glacier less than 10 miles from where it happened. I cycled through the area in late August and visited with her. While I hadn't seen the specific "collide at high speed" report, what I found interesting is the victim had a lot of attributes that you would expect to be fairly familiar with bears, e.g.
- worked with either forest service or national park service
- a "local" who grew up in the area

In my own cycling to the area, I took the GDMBR and had my own encounter with a black bear. In my case, I was cycling on a double-track route, rounded a bend and found a black bear already running away from me. I think it started both of us and somehow the bear noticed me before I noticed it.

Prior to that, I had come via Banff and after seeing multiple signs of bears, e.g. "trails closed due to recent bear sightings", I decided to buy some bear spray in BC. So I had bear spray with me in my front handlebar bag, but didn't have bells or something explicitly to make noise.