Originally Posted by ttr
Does size matter? Of course not, a least in your case...
Those sites are actually the tour I want to make once in the US, so thanks for sharing!
I suppose is not the best to do it alone and, if I don't go wrong, is possible to make it in about one week, right? Did the bikes have some problems because of the altitude? In the Alps I ride up to 3000m above the sea level with no particular issues.
Great admiration for the gs1200 on that rocks!! (and for bikes of that size)
I've been throughout most of the US and this area, to me, is top of the list for scenery.
Most of the route, except the single track and a couple of the trails in Utah, is well known and often traveled by others. I would not hesitate to ride it alone. Obviously this is very dependent on the bike you ride and your skills on that bike.
As far as altitude, the two Huskys, the KTM, and the BMW are fuel injected. The two KLR's were jetted for sea level so they saw a decrease in power but had enough low end torque to do pretty well. The DR was re-jetted for the altitude. They all did well.
On most of the Colorado portion you will be between 3000-4000 meters.
When are you planning your trip? I'm sure you will have a spectacular time.