Framebuilder Supply
We carry Columbus tubing as well as lugs, dropouts, fork crowns, and braze-ons. We also have proprietary goods and items from Gasflux, Harris, Weld Mold, 3M.
Framebuilder Supply
All products
All
What do you want to build today?
Frame & Fork
Braze-ons
Hardware
Consumables
Merch
Frame Tubes
Forks
BB Shells & Mounts
Lugs
Dropouts
Cables & Housing
Braking
Shifting
Attachment Points
Seat Collars & Binders
Seat Stay Tips
Belt Drive Couplers
Main Tubes
Seat Tubes
Head Tubes
Seat Stays
Chain Stays
Steerer Tubes
Steerer Tube Plugs
Fork Blades
Fork Crowns
Forks & Accessories
Lugged BB Shells
Lugless BB Shells
Electric Motor Mounts & Jigs
Gearing Mounts & Jigs
Front Dropouts
Rear Dropouts
Housing/Cable Stops
Housing/Cable Guides
Brake Bosses
Disc Tabs
Shifter Bosses
Derailleur Bosses
Barrel Adj. Mounts
Kickstand Plates
Chain Hangers
Pump Pegs
Bosses
Rack Tabs
Framebuilder Supply Light Brackets
Barrel Adjusters
Dummy Headsets
Seatpost Binder Bolts

Titanium bottom bracket shells - ISO threaded 68.5mm and 73.
USD 45.25

Steel bottom bracket shells - ISO threaded - 69mm, 74mm, 101
USD 5.95

Heavy-duty steel bottom bracket shells - ISO threaded - 68.5
USD 6.45

Steel bottom bracket shells - T47 - 69mm, 74mm, 87.5mm
USD 11.95

Steel mid bottom bracket shell - PF41 - 68mm
USD 14.95