latest project: "Old Cro" the R-evolution

The design work is done (after years of research, sourcing parts, and saving funds) and the actualization of my design obsession has finally begun. First order of business: a track-worthy chassis. Like a new father, I'm anxious to share pictures of the new-born, and entertain thoughts and comments.

Progress so far:

[IMG]http://i236.photobucket.com/albums/ff169/53vanzen53/vanzen3rdrightsideSAneck.jpg[/IMG]

design: vanzen
frame fabrication: Randy Illg & FRAMECRAFTERS

stay tuned for further development..

more pics at ROCKERBOXER:[URL="http://www.rockerboxer.com/page/page/5324463.htm"]http://www.rockerboxer.com/page/page/5324463.htm[/URL]

I can't wait to see the progress!

:lurk

:lurk

Pass the salt.

A composite thumb-nail of my blueprint drawings:

[IMG]http://i236.photobucket.com/albums/ff169/53vanzen53/X-FRAMEWEBOLDCROdev.jpg[/IMG]

kbasa: I could load a disk with development sketches that plot the course of this result !

Another innocent Airhead bites the dust.

Makes the remaining intact ones more valuable, I suppose.

What do you have in mind for the front suspension?

[QUOTE=lkchris;272238]Another innocent Airhead bites the dust.

Makes the remaining intact ones more valuable, I suppose.[/QUOTE]

Do you ever have positive input?

I wouldn't have done it myself, but :bikes

This is going to be a cool thread to watch.

[QUOTE=lkchris;272238]Another innocent Airhead bites the dust.

Makes the remaining intact ones more valuable, I suppose.[/QUOTE]

actually, the R80GS frame was a salvage.
as are MOST parts used in this project ÔÇô recycled!

... and don't think that the R68 sitting in my living room is anything but bone-stock! LOL.

[QUOTE=DADODIRT;272340]What do you have in mind for the front suspension?[/QUOTE]

a Marzocchi set [u]salvaged[/u] from a K100, of course.
wheels will be tubeless BMW hubs [u]e-bay-salvaged[/u] from a GS and an R100R... (this IS fun!) laced to more appropriately sized rims. the rear hub is from a Paralever ekwipt GS and will be machined to fit the Mono final drive.

Interesting about the salvaged frame.

So with a new frame being made out of the old one, will you get to title it as a new bike? That would be pretty cool- you could (in certain states) assign a VIN of your own creation, and legally name the make/model whatever you wanted to.

You could have a lot of fun with that.

note marking on swing arm, "92 R100RS":

[IMG]http://i236.photobucket.com/albums/ff169/53vanzen53/vanzentransverseuppertrans.jpg[/IMG]

one more bite for the R-evolution.

resulting geometry:
"I assembled the front end and wheels. The steering head angle is 26.5 degrees with the bike sitting on the bare wheels and the forks slid up in the triple trees 1 inch. With tires it should be about the same or slightly less (26 deg). The trail figures out to 3.96" at 27 deg and 3.69 inches at 26 deg so we are right in the ball park." – Randy Illg

On matching wheel centerline and frame centerline – relating to why BMWs like to drift to the right, and this one won't:
"The engine sits about 1degree offset from true centerline (it points slightly to the left when looking down). This brings the thrust lines of the engine in line with the driveshaft centerline. The rear wheel is on centerline and the swing arm must be all the way to the right. It all works with no binding." – Randy

[QUOTE=crazydrummerdude;272448]Do you ever have positive input?

I wouldn't have done it myself, but :bikes

This is going to be a cool thread to watch.[/QUOTE]


No kidding, crazydrumerdude. Mein Gott!



On the reals, that's a fantastic re-cycling (Har! I yam FUNNY! Har!) of old technology. I can't wait to see more!

Now maybe he could tag-team with floridaroadkill..

Have you tried getting the motor and gearbox out since buiding the frame?

[QUOTE=lostboy;272577]Have you tried getting the motor and gearbox out since buiding the frame?[/QUOTE]

simple answer: No...
The eng/trans won't need to come out until the basic main-frame fabrication is complete. What you don't see [i]yet[/i], and what happens next, is that the right lower rail (yes, just one) will be 'cut out' and made to be removeable to allow that task.