Framecrafters is done with my frame - yipppeeee!!!!!!!!!!!!!!!!

[FLHGSRay]

Did the successful racers back in the day find all this necessary? I've never studied the photos I've seen.

[trippivot]

what does your project weigh at this point?

,

here is a example of a low budget frame for drag racing (under $500 not including the double clubfoot) - projecting 300+ horsepower. Plenty ridged no extra nonsense. I am looking for pictures of a road racing frame we built a few years ago.

all those x braces freak me out. but I can get into the groove of your project because I love modified power bikes.

[stetracer]

PS: Perhaps I have misused the term "sleeper" in a previous post - it seems that some on this forum understand it to be a race bike in street clothing... I was using the term to describe a bike that is deceptively faster/better performing than stock.

Oh that explains it a " sleeper " is a bike that looks slow or stock but is not. Now a days if you not pushing at least 150 HP your not fast.
Remember it only has to make you happy. Build it how you want it. But if you want any tip on how to make it quick and fast just ask. We have no problem voicing our opinion.

[limeex2]

Looks sweet! I was wondering about the horizontal bracing above the swing arm bracing also. The yosh race bikes of that period had this along with another about where the battery box mnt point is.If you look at most modern Ducati,KTM sportbikes,lots of triangles are used in their frames.It would take an engineer to figure the use of tri-angles on a GS frame to get the best bang for your buck/weight. The weight of some bracing is minor compared to the handling benefits gained by it. If you are moderizing your brakes, the brake caliper arm could be lost by checking your FZ-6 or an FZ-1.I used a FZ-1 rear caliper and set it up like one.I like the swingarm,looks period correct, but better/cleanerthan the older braced arms.There is a lot of info on the old yosh bike out there,showing their mods to a GS1000 roadracer. Everyone has opinins on what may or may not work,but in the end its your choice of everyones opinions that you believe in, that will make your bike your own and built like you dreamed it could be.

[turbojonn]

I love your project! Bad add idea. Take some video?

[posplayr]

It is clear OP had the benefit of most of the better information posted here about bracing.

See Tone's comments here:

http://www.thegsresources.com/_forum/showthread.php?142286-Frame-Bracing&highlight=bracing

This the OP's thread started some time back.

http://www.thegsresources.com/_forum/showthread.php?224371-GS1000-Frame-Bracing-Templates&highlight=bracing

[Steve]

I have never pushed a bike hard enough to feel the "need" for all that bracing,
but I was wondering if you can still remove the oil filter past that lower "X"?



.

[philosopheriam]

Thanks everyone - as for my brakes, I am going to run Salty's dual disc upgrade with 2-pot calipers and CBR900 fireblade rotors up front.

I'm going to leave the rear brake alone as I don;t use it much, anyway :-)

[limeex2]

I just want to be able to find this thread again!! hence my post. lol

[Buffalo Bill]

"Several months ago"…that's quite a waiting list.
But the work looks 1st rate.

Oops, I thought this was a newish thread.
Anyway, I love your unemotional and detailed response/defense to trollish criticism.
Seems like drag racers are unaware of curved track racing, from what they write.

I also agree with your limited expectations from a steel frame bike designed 35 years ago, when anybody can buy a newer sport bike like your Yamaha.

[Agemax]

[QUOTE=Steve;2128663]I have never pushed a bike hard enough to feel the "need" for all that bracing,


[/QUTE]
I very much doubt ANYONE on this site has either!

[Joe H]

[QUOTE=Agemax;2180392]

I have never pushed a bike hard enough to feel the "need" for all that bracing, [/QUTE]
I very much doubt ANYONE on this site has either!

I know I can't push them that hard!!! But I really don't ride all that well…just keep the wheels down is my moto.

Great looking frame! Should be a fun bike and fun to build, cant wait to see more!
Im glad I stumbled on to this thread Framecrafters may be a good resourced to know about in the future.

[GregT]

[QUOTE=Agemax;2180392]

I have never pushed a bike hard enough to feel the "need" for all that bracing.
I very much doubt ANYONE on this site has either!

Well down here in the southern hemisphere we do still race these things pretty seriously...As GS58 has previously pointed out. When your local opposition is a well ridden and expensively maintained RG500Mk4, you need every bit of help you can get.
What you've done will work well with modern levels of grip. The only bit extra I'd have done is a pair of diagonals behind and below the steering head from the horizontal rails to the downtubes. This alone stiffens the steering head area up noticeably - but may interfere with mounting the horns....

[philosopheriam]

I'm going from stock hp (around 90) to near 120/130 when all is said and done. This was part of my rationale for stiffening up the frame and swingarm