personally, I'd buy the Soma. Columbus Zona's not incredible, but mainly because of these two builds
http://www.tange-design.com/dowon_tubing.php?sn=6&type_sn=3&type=pdf http://www.columbustubi.com/eng/4_4_7.htm
@fredtc started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
personally, I'd buy the Soma. Columbus Zona's not incredible, but mainly because of these two builds
http://www.tange-design.com/dowon_tubing.php?sn=6&type_sn=3&type=pdf
http://www.columbustubi.com/eng/4_4_7.htm