That's a good question... Was 21 days enough to see every place I planned on seeing? yes. Was it enough to fully experience the best places that I visted, like Glacier and Utah? Definitely not. I averaged around 375 miles a day for the whole trip. That left me with a small amount of time to do much more than ride. If I were to do it again like this, one more extra week would be perfect!... I also missed my woman so 21 days alone was a long time too. But every one is different I suppose... The main gear that I brought was a full set of camping equipment for sleeping and cooking, a few days worth of clothes, tools, camera equipment, 1 pair of warm gloves, 1 pair of winter gloves, down mid layer, heated vest and grips. I hope you're able to do something like this someday soon! You'll never regret it.