My family (me, my wife, and 16 year old child) recently participated in the Best of Boulder tour. Perhaps because it was on a Wednesday morning, we were the only participants on the tour, and we had two tour guides! Our experience was outstanding. The electric bikes made travelling around Boulder a breeze. The bikes, we were told, were custom-made, and having done a similar electric bike tour at Garden of the Gods with a different tour provider, I preferred these custom made bikes to the commercial model we had there. Best of all, in just two hours, we were able to get an excellent overview of local sights (such as the Dushanbe Tea Room, the Flatirons, downtown, and the CU Boulder campus), with details from guides who love their city. This was the highlight of our recent trip to Colorado!