1983 SE Racing Quadangle

1983 SE Racing Quadangle

1983 SE Racing Quadangle

Stu Thompson and the Original Quadangle, the STR-1

In 1978, a young entrepreneur named Scot Breithaupt started promoting “Pedal-Cross” races in southern California.

That same year, Breithaupt launched Scot Enterprises (SE) to supply the bikes to those same southern California kids that wanted to race.  The Bicycle Moto Cross (BMX) bike had arrived, and an entire sport was born.

Tuff wheels made the coolest mags

This couldn’t have been easy to weld…

BMX had some memorable bikes and riders throughout the years.  The aluminum PK Ripper raced by Perry Kramer was lighter than anything available, and had cool oval tubing.  CW Racing had “Pistol” Pete Loncarevich winning on their bikes and a lightning bolt welded into their frames.  Redline had understated and classy designs, and had stars like Dennis Dain and Greg Hill to race on them.

Wow, this bike looks mean.

Actually made from Reynolds tubing

Nothing was quite as rad as the SE Racing Quadangle.  The bike originated in 1979 as the STR-1 for star BMX’er Stu Thompson.  Stu and his SE were on countless magazine covers and at the front of many races.

This particular bike is from 1983, featuring all of the best components from the day.  Profile cranks, Tuff Wheel mags, Kashimax saddle, and a Dia-Compe brake. It was actually made out of Reynolds 531 tubing, and the TIG welds look great.