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1983 GJS Big Tube
 

1983 GJS Big Tube

A George Utterback Epiphany


The story of the uber rare "Muffler Bike":  


I spoke with Jeff Utterback last year about the Bigtube. He told me that the Bigtube f/f concept was the brainchild of his father Mr. George Utterback, of "G"JS. It was 1983 and the f/f was built primarily for pro-class racing ex. 1983 ESPN event where Jeff had test piloted one.  It was dubbed the "Muffler Bike" by dealers at the Interbike event in Las Vegas in 1983 because of the muffler-sized tubing used on the forks. Some people believed it was perfect for ramp because of the sturdy construction so it was used as a freestyler aswell.


I bought the f/f in flat black primer from Europe. I finished it in high gloss black and made custom hand-cut decals, keeping faithful to the original Bigtube advertisement


This build was done in a freestyle theme for the 2020 buildoff using all OG or NOS parts: 


Parts List


Bigtube Frame B001
Bigtube "Muffler Forks"
OG Bullseye cranks 2nd gen
OG Bullseye bottom brackett
OG SR gold pedals
OG ACS 48 spoke ZRims
OG Suntour coaster rear hub
OG ACS front hub loose ball
OG Peregrine seat clamp
OG unstamped post
OG Norco headset lock
OG DK polished XL stem
OG polished stem bolts
OG Potts Mod Stem bolt
OG Diacompe front and rear brakes
OG Diacompe locking levers
OG Skyway polished EZ bars
Custom SE patterned seat
NOS Bullseye spider
NOS Proneck sprocket
NOS ODI grips
NOS Compe Pool tires 

Thank you to my friends on Bmxmuseum who helped sell parts to me, this one's for you

Submitted by Bon

  • All-Around
  • Company: GJS
  • Model: Big Tube
  • Wheel Size: 20"
  • Headtube size: 1"
  • Details Bigtube Frame #B001 Bigtube "Muffler Forks" OG Bullseye cranks 2nd gen OG Bullseye bottom brackett OG SR gold pedals OG ACS 48 spoke ZRims OG Suntour coaster rear hub OG ACS front hub loose ball OG Peregrine seat clamp OG unstamped post OG Norco headset lock OG DK polished XL stem OG Polished stem bolts OG Potts Mod Stem bolt OG Diacompe front and rear brakes OG Diacompe locking levers OG Skyway EZ bars Custom SE patterned seat NOS Proneck sprocket NOS Bullseye spider NOS ODI grips NOS Compe Pool tires

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