Originally Posted by
KevinF
The longest "mostly downhill" ride I've ever been on has been leaving Crater Lake (Oregon) and heading towards the ocean. It was "fast downhill" for the first five or six miles, and then it's "more or less" downhill for about 60 more miles. We'd be coasting along at ~25mph and then we'd start pedalling and get up to low-30mph range for a bit and start coasting again, etc. We covered the whole thing in about two hours.
And, for the purists out there, yes, we had ridden to Crater Lake in the first place. Different route but same basic thing -- 30, 40 some miles at 2, 3% grade.
I've done this, too, on a supported tour. One day climbing to the rim of Crater Lake from Fort Klamath, overnight at Diamond Lake (monster mosquitoes!), then the next downhill from Diamond Lake to Roseburg. I think we covered the first 50 miles in 2 1/2 hours with rest breaks.
An alternative would be Oregon's Highway 35 from Government Camp to Hood River. From Bennett Pass to Hood River, it's about 33 miles of nearly continuous downhill. Like this:
OR 35 Hood River OR to Government Camp OR - A motorcycle ride in Hood River, OR