Suzuki GS750e Cafe

chickenStripCharlie said:
Sweet bike. She does look heavy.

I did not think those aluminum tube threads would be up to that. Nice.
Click to expand...

Thanks, and they’re 640lbs or so stock. She’s been shaved here and there. Center stand removed and cut away, the exhaust and wheels lightened it up a bit as well. The front fork swap shave a few lbs as well.


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chickenStripCharlie said:
Sweet bike. She does look heavy.

I did not think those aluminum tube threads would be up to that. Nice.
Click to expand...
The top triple triple does nothing to handle the weight of the bike. All the pressures are on the bottom triple and stem. The top triple really just holds the handlebars and helps keep the forks square. There are many bikes out there (see: BMW R100/7) where the top triple is nothing more that a thin plate of steel. Those extenders could probably be pressed in and work just as well.
 
irk miller said:
The top triple triple does nothing to handle the weight of the bike. All the pressures are on the bottom triple and stem. The top triple really just holds the handlebars and helps keep the forks square. There are many bikes out there (see: BMW R100/7) where the top triple is nothing more that a thin plate of steel. Those extenders could probably be pressed in and work just as well.
Click to expand...

Now that I think of it, on my tubes at least, if I was to add extenders and move them 2" down, the lower triple would no longer clamp on the tube properly! The clamp section would now be completely below the triple!

So does this require a lower triple with built in "drop", or a custom stem that is also 2" longer?
 
They will only work with fork tubes that are parallel and the same diameter above the lower triple for at least 3 inches.

GSXR/TL forks are like that, but Ducati forks step down just above the lower triple to 52mm, so the amount that those forks could be stretched is limited. In that case, it would need a gull wing lower triple.
 
It’s been a while since I’ve touched this project. Life, moves fast and changes lanes with just the slightest lean…

Anyhow, I’ve got to the rear of the bike, trimming some fat off her, and have the swing arm in with just a mock up so far. Question is, how do I align or gain parallel from front to rear sprockets. I’m off like an inch or so.
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jdeitz1979 said:
Question is, how do I align or gain parallel from front to rear sprockets. I’m off like an inch or so
Click to expand...

Three straight forward methods:
A) Buy/make an offset front sprocket to move the sprocket outwards
B) Machine down the rear sprocket carrier to move the sprocket inwards
C) A+B if neither are enough alone

There are other ways such as offsetting the rear wheel in the swingarm etc but that’s a last resort in my opinion.

Later, Doug
 
I heeded an offset front sprocket on my CL378 that had a Kawi Ninja 500 swing arm & wheel. Rebel Gear made my sprocket. A whole inch offset is a bit much, you may have to resort to Option C above. As noted above having some offset spacers made to move the whole wheel might help too.
 
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I forgot to mention that on my Kz1000 that I had to go with option C. I have a Zrx1100 swingarm and a 5.5” Zx11 wheel. I’m used a 5/8” offset 530 front sprocket and I milled off around 1/4” or so from the sprocket carrier. You do have to be careful about machining the carrier as the chain can rub the tire’s edge if you get too close. Same goes with the chain and inside of the frame rail if you offset the front too much.

Later, Doug
 
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