Schwinn Homegrown Model Identifier › Forums › General Stuff › Homegrown Talk › Project Colorado This topic has 2 replies, 2 voices, and was last updated 8 years ago by livernose. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts May 8, 2015 at 8:10 pm #1243 kadoddlehopperParticipant Just acquired a Project Colorado. Not finding much info on the web for this bike. If anyone has any info, I would be interested in hearing about it. One thing I would really like to know is which aluminum alloy was used to build the frame. Thanks! May 11, 2015 at 3:59 am #3840 livernoseParticipant 6000 series aluminum. Paper thin and very lightweight frame. March 6, 2016 at 3:53 am #4136 livernoseParticipant You got any pictures to post? Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In