Happy Monday July 14, 2014 Images & Video, Rides & Trails Betasso Preserve, Boulder. Colorado, Happy Monday, Photo, Ride Post navigation First Impressions: SQlab 611 Race & 611 Active MTB SaddlesHappy Monday 2 thoughts on “Happy Monday” Is the entire Betasso Preserve rideable on a ‘cross bike with 42mm width tires? I live in the Denver area and looking for add’l places to ride. Thanx. It could be done, but it would be somewhat challenging. There are some rocky sections where dismounting might be necessary. Comments are closed.