What I've been working on

[bighroder]

So here's my bike, id like opinions questions criticism
Anything you want its a71 cb 750 21"front and back 9 inch stretched swingarm sportster frontend dual mono shocks

I've done all the work besides machining

 

[eyesore]

I really like it, please keep us posted!

ISore

 

[moparcowboy]

Exhaust is rad!

 

[cycledog]

I love those old 750s, smooth as butter. Nice looking scoot.

 

[PORTnPOLISH]

As a map chopper my self I will say that's a sick bike. Love the exhaust, I want to ask what shocks those are and if you have them set up on linkage or not?

 

[Charley Davidson]

How do you have "Dual" mono shocks? [S

Love your welding helmet

And the bike is really cool, you got some badass features going on there [dr[P

 

[bighroder]

They are 2 mono shocks from an r1 yamaha no linkage just laid down more so they are stiffer thanks everyone for the compliments

 

[jrotten]

I like it. How about some more pic's.

 

[bighroder]

in no particular order some more pics of the never ending fabrication on this bike lol i hope it draws to an end soon

if you guys like my work you can check out my work on facebook i run a small fab shop as a second job its dirt floor fab

http://www.facebook.com/#!/pages/Dirt-Floor-Fab/167972903239426

 

[bighroder]

Another pic I'm doing final tweaking to the bike hoping to have it on the road before ea ster

 

[Neverdone]

Ya know I have been looking lately for a bike to do the same. I want to build a rat bobber......

 

[bighroder]

Got a battery box built moved the oil tank up

Not very eventful but you get the jist

 

[Unkl Ian]

They are 2 mono shocks from an r1 yamaha no linkage just laid down more so they are stiffer

Laying them down makes them softer, not stiffer.

 

[bighroder]

Geometry disagrees with you

 

[earthman]

Look at it this way. Vertical springs give 100% of their ability to support. Horizontal 90 degree angle springs give 0 support. 45 degree angle gives 50%.
Easy to build a simple jig and test this. Looks seriously cool to me Keep the pixs coming please!

 

[bighroder]

Trying to get the brake **** figured out and the tail light I have three options
Option a

option b

Option c

 

[sgtpontiac]

Don't use option C....

a or b look better.... figure on plate being under the lamp?? either way better than C....JMHO....now that I took another look....B is better...

 

[Unkl Ian]

Look at it this way. Vertical springs give 100% of their ability to support. Horizontal 90 degree angle springs give 0 support. 45 degree angle gives 50%.
Easy to build a simple jig and test this.

Earthman has it correct.


Or maybe all these guys are wrong:
http://www.proshocks.com/calcs/anglefirst.htm
http://www.proshocks.com/srshocks/tech1a.htmhttp://qa1.net/qa1_motorsports/images/drag_tech.pdf
http://www.rodandcustommagazine.com/techarticles/0812rc_coilover_spring_rates/index.html

 

[bighroder]

I'm more talking about leverage angle

 

[bighroder]

My new ink