Picture of three lugs: a top lug, bottom lug, and seat lug.

What do you want to build today?

Featured builder
Thompson Bicycles
@thompsonbicycles

in it for the long haul

Whether you're building your bike from scratch or making what you've got better, we're here to help. Add bosses for another water bottle cage or a cargo cage. Make your bike your own.

Let's get started

Braze-ons
Braze-ons
Fork Crowns
Fork Crowns
Frame Tubes
Frame Tubes
Rods & Wire
Rods & Wire
Lugs
Lugs
Dropouts
Dropouts
Hardware
Hardware
Merch
Merch

New and back in stock!

steel rack tabs for custom steel bike racks M5
Stainless steel rack tabs, pre-trimmed - 2 and 10-packs
from $ 5.90
steel rack tabs for custom steel bike racks M5, M6
Stainless steel rack tabs, untrimmed for M5 and M6 bolts - 2 and 10-packs
from $ 6.19
Rear vertical dropouts by Ira Ryan - tab style - 1 eyelet w/stainless faces
$ 69.95
Gasflux G-72 Nickel Silver Rod - 1/16" - 1lb
$ 18.95
Gasflux G-72 Nickel Silver Rod - 3/32" - 1lb
$ 18.95
Columbus Zona down tube - 28.6 dia. - .8/.6/.8 - length = 650
$ 32.45
Columbus Life down tube - 42 dia. - .9/.6/.9 - length = 670
$ 72.65
Shimano Down tube Housing Stops/Adjusters
$ 15.95
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13 products
The home of

lugs and fork crowns

designed by Kirk Pacenti
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Color your ride

Spray.bike

Level up your rattle can dreams.
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Framebuilder Supply Light Brackets

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Supernova E3/Schmidt SON tail light bracket - Seat stay mount for left and right side
$ 13.00
Supernova E3/Schmidt SON tail light bracket in silver - Small
$ 8.00
Supernova E3/Schmidt SON tail light bracket - Medium
$ 13.00
Supernova E3/Schmidt SON tail light bracket - Large
$ 16.00
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5 products

Building your first frame? Let us help!

A primer on lugs

We break them down with simple language & graphics.

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What do I need to build a frame?

What you'll need to dip your toes into customizing your bike or even building your first frame.

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Cool & Helpful Links

Links to cool stuff by great people. From Pithy Bikes videos to Shimano frame requirements, you'll want to bookmark this page.

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Don't forget your consumables!

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Gasflux Type "B" Bronze Paste Flux - 1lb jar
$ 14.95
Gasflux Type "U" Silver Paste Flux - 1lb jar
$ 14.95
Harris Stay-Silv Black Flux - 1lb jar
$ 23.95
Harris 56% silver alloy 1oz
Harris 56% Silver Brazing Alloy - 1 oz
$ 51.55
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24 products

Our retail store

1515 SE Ankeny St,
Portland, OR 97214
971.251.0092

Pickups and in-person shopping by appointment only.

Get directions