To celebrate 50 years Torker have made just 50 of these frame kits, made in California and we've assembled one of them into a complete bike. We used a set of the Motomag III wheels and original 1970's Ashtabula prts which would have been used in period - goosebeck, bars and 1978-stamped crank. A padded original diamond Troxel-type seat, Nitto seatclamp, Dia-Compe brake, rat trap pedals, NOS period sprocket, A'ME Bubble font grips, topped off with a number plate. We've built this as close as we could to how you've have done it in 1977. This one is number 17 of 50.
Build List
Torker USA-made Big Bike frame and fork, padset and certificat eof authenticity.
Mongoose Motomag III wheels.
Astabula stem.
Ashtabula box bars, powder coated gloss black.
Ashtabula NOS one-piece cranks, stamped 1978.
Rat trap pedals.
KMC 1/8" chain.
Darxide cro-mo 14" seatpost.
Nitto seat clamp.
Troxel type diamonmd padded railed seat.
A'ME Double Bubble Round grips.
Dia-Compe MT45 brake lever.
Dia-Compe BRS brake vable.
Dia-Compe MX890 brake.
Tange MX-2 headset.
28tpi bottom bracket.
Whitefield sprocket, 44T.
Torker cable clips x2.
Flite x Torker 50 Year anniversary vinyl/snap ped set.
Certicate of authenticy signed by Torker head honcho, Bill Ryan.
Want to build your own? Be quick we only have a handful of frame sets left.
About The Big Bike
The one that started it all for Torker — these anniverary kits are hand-made in Southern California, not far from the original Fullerton shop. BMX Action™ Magazine once called it a “Fiendishly Seductive Racing Bike,” and I have to agree.
This frame lit the spark for so many of us “Dirty Heads” who have loved BMX since birth. We dreamed about it while saving pennies from collecting bottles, running paper routes, mowing lawns — all to finally own the ultimate BMX racing bike of the mid-’70s: the Torker G.T. Big Bike, also known simply as THE BIG BIKE.
Are they going to be rare? Absolutely.
Are they going to be awesome? You know it.
Now you can channel your inner Kevin McNeal, Leo Green, and the other legends. These frames are 100% made in Southern California — right down to the premium chrome and powdercoat, all produced just down the street from where the originals were made in Fullerton.
Of course we will be able to build one of these into a custom bike for you, contact us for details.
Geometry: Original 1978 Big Bike Specs (Jig set up using Bill's original frame!)
- Top Tube: 19.5"
- Chainstay: 15.25"
- Head Angle: 70°
Frame Details:
- Includes 1” retro 4130 Cro-Mo heat-treated Torker threaded forks ( 21.1 ID )
- Show Chrome or original powdercoat colours (Blue, Dark Red/Maroon)
- Seamless 4130 Chromoly tubing
- Traditional dual top tube race frame
- American large BB shell — yes, you can run 1-piece cranks
- Laser-cut Cro-Mo dropouts (3/8" front and rear)
- Traditional Torker dropouts (not the forward-facing type from the first Torker MX bikes)
- Special “Big Bike” vinyl pad set with original logo (black only), made exclusively by Flite® in the USA
Limited Run – 50th Anniversary Edition
Only 50 frames will be produced to celebrate 50 Years of Torker (1976–2026).
Each frame will have a sequential serial number: TBB5001, TBB5002, TBB5003… up to TBB5050.
Post your builds and share your serial number on the Torker Racing Riders Group
To celebrate 50 years Torker have made just 50 of these frame kits, made in California...
