We'll see where this goes... two briggs bikes....NOW DONE!

[Cleatus_Fathom]

Here she is all finished. Please read on if you want to read the process.

Started building this awhile ago. I don't really have much of a plan yet, but its starting to come together.

Started with a brand new schwinn on sale from target.

Grinder and welder. About to make the first cut. The fork is a girvin from a proflex mtb. The elastomer spring was shat so I just reworked it a bit.

First cuts have been made.

My buddy (I'll call him Mr. French) is also working on his own briggs bike.

Mr. French's bikes is coming along nicely.

 

[Chips_Mahoy]

Re: We'll see where this goes... two briggs bikes

This should be in the calendar w/ "BUILT......not bought" on it!

 

[KJV]

Re: We'll see where this goes... two briggs bikes

This should be in the calendar w/ "BUILT......not bought" on it!

yeah, along with a picture of the one leg man.
who didn't think about cluch,&
chain drive line position.

 

[Chips_Mahoy]

Re: We'll see where this goes... two briggs bikes

This should be in the calendar w/ "BUILT......not bought" on it!

yeah, along with a picture of the one leg man.
who didn't think about cluch,&
chain drive line position.

I won't tell if you wont..... :wink:

 

[Cleatus_Fathom]

Re: We'll see where this goes... two briggs bikes

I did have an initial plan but I have since deviated a bunch. Here is one of the first drawings I did of the bike. The current build will have a different drive-line since I wont be putting pedals or a crank on. Instead sealed bearings will be installed in the bottom bracket. This is where the jack shaft will then go to drive the rear wheel from the right side.

 

[KJV]

Re: We'll see where this goes... two briggs bikes

glad to see that.
with pedals, it could have been tragic.
watching this build.
how many h.p. ?

 

[Cleatus_Fathom]

Re: We'll see where this goes... two briggs bikes

how many h.p. ?

Lets see. 49.9cc = 5hp :wink:

 

[Lugisland]

Re: We'll see where this goes... two briggs bikes

how many h.p. ?

Lets see. 49.9cc = 5hp :wink:

LOL! Ya gotta keep it legal! :wink:

 

[KJV]

Re: We'll see where this goes... two briggs bikes

a non pedal power..
trew that "law" out of court. :wink: :arrow:
gotta catch first.DIG-IT.

 

[Cleatus_Fathom]

Re: We'll see where this goes... two briggs bikes

Update:
Got the motor mounts welded on to my bike and the V brake bosses welded to Mr. French's bike. Not really able to do anything else until the parts come in for the jackshaft.

 

[isaiah3g]

Re: We'll see where this goes... two briggs bikes

Sweet! Lookin pretty good!

 

[Cleatus_Fathom]

Re: We'll see where this goes... two briggs bikes

Finally found some time to work on the bike a little more. I got the engine mounts completely mounted now. Also got the jackshaft and sprockets installed. All I have to do now is decide on how I want to do the tank. Not sure if i want just add some small cylinder for a tank and leave the frame as is or add a cross bar and make a more traditional tank. What do you all think?

Cross bar...yes or no?

 

[KJV]

Re: We'll see where this goes... two briggs bikes

crossbar. :mrgreen:

 

[Cleatus_Fathom]

Re: We'll see where this goes... two briggs bikes

Decided to add the crossbar. Ended up getting the rear sprocket done too. Lastly decided on a paint scheme, brown primer frame, white seat/grips, polished aluminum motor/forks.

How to make a coaster brake hub into a fixie...weld.

 

[curtisfox]

Re: We'll see where this goes... two briggs bikes

Maybe check out how Goldy did his pedals and jack shaft combo. Pedels and shaft all in one.......Curt

http://motorbicycling.com/showthread.php?t=28747

 

[Cleatus_Fathom]

Re: We'll see where this goes... two briggs bikes

Maybe check out how Goldy did his pedals and jack shaft combo. Pedels and shaft all in one.......Curt

http://motorbicycling.com/showthread.php?t=28747

That is a clever way to add pedals/cranks, however I'm not planning on having any pedals at all.

 

[Cleatus_Fathom]

Re: We'll see where this goes... two briggs bikes

Started on the tank today and finished the brake caliper mounting bracket.

 

[Beau]

Re: We'll see where this goes... two briggs bikes

Before you go any further, you need to do some research abut rake and trail.

That headtube angle isn't going to work, man.

 

[Cleatus_Fathom]

Re: We'll see where this goes... two briggs bikes

Before you go any further, you need to do some research abut rake and trail.

That headtube angle isn't going to work, man.

Yeah, I know about all that...I was just hoping it wasn't going to be an issue at the lower speeds. However, after reading your concerns I decided to take the bike down a hill to see how she handled, and well it did indeed handle like .... like you said. So thanks for motivating me to try it out before I went too far. I have since changed the head tube angle to allow for positive trail.

I ended up doing a ...... job of documenting my progress, as the bike is all done now. My buddy Mr. French has abandoned his project unfortunately. Now onto some finished pics...thats the best part anyway.

 

[Louis]

The build turned out great! Bike looks sweet. How does the bike ride in the end? Top speed? I would love to see some close-ups of your drivetrain