Eight Pounds and 40 Stone Build

[robin1731]

Centerline looks fine so far. Lay some "straight" 2 x 4's or old florescent light tubes alongside the rear tire wall, as you go to the front wheels...measure the distance from the "center of the front wheel rim" to each 2 x 4 or tube. This measurement is used to make sure the tires are tracking straight. Over the years I try to keep it as close as possible...1/16" (inch). But knowing how many of these bikes are built...1/8" - 3/16" is not bad at all.

What would be the effect on handling if rear to front wheel tracking was off by 1/2". Wobble, constant lean, nothing?

It appears my center of the front axel is not on the centerline of the frame off by 1/2".

When I layed all this out from the old swingarm it appeared the rear tire was offset 3/8". Is this correct? Anyone ever check that alignment?

Thanks for any opinions/knowlege.

As long as the wheels are square to the frame and to each other the tracking will be fine. In a straight line you'll never notice it. In a turn it may show up a little. Will probably turn a little different from left to right.

[bonneblktrk]

Thanks Robin. Verifies what my concept is of it.

[Red2trike]

What Robin said.

RT2

[bonneblktrk]

Thanks guys I feel better.

[bonneblktrk]

Another milestone.

Got the sssa trued up and tacked. Removed the alignment fixtures and put the differential on a jack and the wheel/drivetrain turns smoothly. No noises or binding. Swingarm pivot has a large range on movement.

Disassembled and tack more where I couldn't reach before to make sure it holds together while we figure out the shock mounts and bracing.

[joedrum]

yep i couldnt really see a better way to do it go work ...it seems the drive shaft is off agle to the right side ...is the shaft here have two joints ...one on each end ...it seems single joint would bind ...i sure like your work it is methodical and super hands on that dont need a how to road map

[bonneblktrk]

Hey thanks joedrum. The drive shaft is at a angle, there is a flexiable joint in the differential where it's splined shaft goes in. I have it near maximum angle but no binding and turns smoothly.

It's kind of engineer as it goes. If I had to make scale drawings of pieces beforehand, I would still be measuring and drawing. lol. Not thats not the better way of doing things. Some of it is "Eyeball Engineering": if it looks right it will probably work. ha.

[Ezrider]

very cool,

[bonneblktrk]

Looks more like a motorcycle.

Wheels line up too!

I miscalculated the fork spacers, forgot to include the part that goes into the upper tree in the measurements, thats why they are extending the front end so much, 2 3/4". So have to decide on ride height and machine extensions for that measurement. Better to long than to short. ha.

[irishcarbomb]

Nice work looks great! Do you have brakes for the 'busa forks? If not I have a good link with all the compatable years in my build thread. I can post it here once I get home.

[Easter]

I think you covered it somewhere back in the previous 13 pages but the Busa Forks-- Are they shorter than the original forks and if so by how much. I am looking at a set from a Suzuki TL 1000s and they are a bit shorter than stock. I think they might work otherwise.

Following your build enthusiastically. Great work.
Gary

[bonneblktrk]

Thanks irishcarbomb, I have the brakes for the front.

Thanks Easter, the busa forks are 2-3 inches shorter than stock. I am using fork extensions to lenthen them 1-2 inches. Some here lower the bearing races which works also. I will shorten the extensions to get ride height level from the where I end up with the angle of the swingarm which is 7.5 degrees from horazonal which is what the Hayabusa rear suspension is which I am using.

Presently there is 8 inches ground clearance from lower frame tube, with the tires about 1 inch off the table.

[Easter]

OK, thanks for reminding me how you addressed the issue.

[BLIGHT]

Wow.... excellent work, mate!! You truly have a vision, and obviously the skills to make it a reality!
We're all behind you, so keep on with the fine work!
Cheers,
BLIGHT

PS: Makes my project seem pretty simple by comparison, and it's no cake-walk!

[duke182]

I read through your thread last night. I really like what you are doing. It is very creative and I believe you will have a real eyecatching ride when finished. Watching with great interest.