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View Full Version : Anybody ever dabble in lowrider bicycle frames?



mattrnorris
12-05-2012, 11:02 PM
I'm in a TIG fabrication class at school, basically the last tig class you need to get the AWS certificate and as you'd guess by the name, the whole thing is about fabrication. We have to build something from scratch that we can relatively easily bring back and forth to the shop (otherwise I would be building another big bike frame). So I'm wondering if anyone on here has ever built a bicycle frame? It's definitely easy enough, not a whole lot of bending or welding even. I'm trying to build one of those real ghetto low-rider types. So does anyone have any pointers on tubing size/thickness, material, where to find plans or blueprints or anything at all really? I'd sure appreciate it!

DocArapaima
12-06-2012, 9:23 AM
Check out http://www.instructables.com/. There's plenty of bicycle projects on there that will surely help.

mattrnorris
12-06-2012, 9:33 AM
Alright I will have to check that out! Thanks!

Spade115
12-06-2012, 9:47 AM
I have a lowrider bike frame w girder and a chopper frame basically in parts just sitting in a storage right now. Why not build a small motorcycle frame (Blast maybe hint hint :P)

Do a minibike frame. Doodle Bug or regular custom dosnt have to be big and you still get to build a bike at the end of it. mini trike maybe?

interstatejoe
12-06-2012, 12:36 PM
I have a stretched beach cruiser with girder front that I was thinking of popping one if those 80cc 2 stroke kits onto.

CaviMike
12-07-2012, 2:05 AM
Never built one from scratch, just modified one, but if you can build a motorcycle frame, you can build a bicycle frame. One weighs 10lbs, the other weighs 100. There's no comparison. Pretty much any tubing will do, bicycle tubing is laughably thin. I'd tell you to use conduit but it's galvanized and your instructor will flunk you if you try welding it.

http://cavimike.com/chopper07.JPG

andri
12-07-2012, 3:39 AM
Built these some 8 years ago for shits and giggles. Just used some tubing we had around. Just try to keep it not too heavy tubing. These things got real heavy. Fun though.

http://farm9.staticflickr.com/8340/8252236050_b524e8af40.jpg

OldSoulFabrication
12-07-2012, 11:09 AM
Working on one right now. Gonna have cylinders in the rear so when its aired out it will lay frame on 23" wheels. Only have mock up done so far with conduit that was laying around. but the frame will end up being all polished stainless. Planning on auctioning the finished product off for charity.

mattrnorris
12-08-2012, 2:02 PM
I was thinking if I left room in the right spot I could add a single cylinder later on. Only reason I'm just building a bicycle frame is that I only have 2 weeks left to do it! Overloaded myself with other classes this semester! Those bikes look pretty sweet! I just think since I have to build something small and relatively quick I might as well make one of those real ridiculous low rider ghetto looking ones! I'll just find an old Schwin donor and some tubing, I'll try to post some pics when it's done!

randommayhem
12-09-2012, 10:05 AM
I use to build a lot of bikes, I like tallbikes the most though.

http://i413.photobucket.com/albums/pp212/bicycleguy232/100_4812.jpg

http://i413.photobucket.com/albums/pp212/bicycleguy232/100_6098.jpg

http://i413.photobucket.com/albums/pp212/bicycleguy232/Bryan-TallBike.jpg