Nice !
inspires me to track down my childhood bike:
Yellow Columbia very similar to your new find, defintely the same seat , but it had a with hurst style shifter .......
wrecked it and my skull doing evil kanevil jump over cinder blocks and 2 x 6 plank ramp jumps in my friends driveway .....
concussion was so severe that i blacked out , barfed , eyes dialated the whole mess ......and apparently during my black out , i carried the bike carcass home a about two miles through a hilly woods trail , between developments and passed out as soon as i got to my house.
Anyone have pics/info /catalog from around 1976 +- ?
was Mach 1the name that covered all the columbia chopper style bike line or where there other models like this?