Check out my XS1100 Chain Drive

[petejw]

now theres some real talent,
nice work,
looking 4ward to seeing how the bike ends up.

[mrbisbob]

Latest progress

Hi all, here is the latest progress. It's ready for bearings and the shaft install.

[lee_dutcher]

Sweet looking piece u got there..i to am exicted to see the install

[trdriver71]

the tuning forks are a nice touch.

[mrbisbob]

More progress on the XS1100R

Hi all, here is some more progress on my XS1100 superbike project.



I made a sleeve to couple 2 bearings together to better support the sprocket side of the shaft.





Here is the unit assembled and installed on the crankcase for mockup. You can see one of the solid motor mounts in the pic too. I had to offset the engine to the right because my 900 Ninja swingarm was too narrow at the back. Turns out that because the XS was a shafty the frame is much wider at the swingarm pivot than say a KZ1000 or GS1000 and you can fit a modern width swingarm and wheel in there.



Here is a mockup new steel motor mount bracket that I made so I can precisely locate the mounts engine side hole. I will post more pics as I make progress.

[mrbisbob]

New progress on XS1100R







Here is the completed solid motor mount conversion.




I turned a piece to extend the steering head and welded it on.




Front view pic with the 86 GSXR750 front end on with 93 FZR600 wheel and rotors.











Here are some setup pics of the case clearancing so I can use a 15 tooth front sprocket. I also used the CNC machine to bore the top case so its ready to accept 3.450 OD sleeves if I want to install them.

[crazy steve]

Just out of curiousity, did you check out using a 520 chain rather than the 530 type? A bit smaller, it might give you more gearing options...

[mrbisbob]

No I haven't yet. I'm only at the mock up and fitting stage right now but that's a good thought.

[fredintoon]

Just out of curiousity, did you check out using a 520 chain rather than the 530 type? A bit smaller, it might give you more gearing options...

Hi Steve,
chain is designated by it's pitch and roller width in 8ths of an inch so a 530 chain has a 5/8" pitch and a 3/8" roller width. 520 chain has a 5/8" pitch and a 1/4" roller width.
Apart from the width they are the same effin' chain so no, a 520 chain won't give any more room save sideways and sideways ain't the problem.
BTW, HD, O-ring & X-ring chains run on the same sprockets as normal chains but their side plates are thicker and larger so that's negative help too.
FWIW, I remember back in the 1970s you could buy dual-width chain kits for your superbike. They used double sprockets of the next chain size down.
A 1/2" pitch chain would give a 19T front sprocket of the same diameter as a 15T 5/8" pitch sprocket. That you could do.

[Yahman]

FWIW, I remember back in the 1970s you could buy dual-width chain kits for your superbike. They used double sprockets of the next chain size down. A 1/2" pitch chain would give a 19T front sprocket of the same diameter as a 15T 5/8" pitch sprocket. That you could do.

I think that would be cool, give it a tough look.

Larry

[Mathh]

Your work looks great. I remember the double chains as well, but as they were for stationary engines they didn't last long..

[fredintoon]

Your work looks great. I remember the double chains as well, but as they were for stationary engines they didn't last long..

>
Hi Mathh,
You gotta get the good stuff. Industrial standard dual chain won't stand up any more than #50 Ag. Chain at $14 the 10 foot boxful would.
Good quality dual chain has to be available, the dual primary chain on my BSA is still in great shape.

[mrbisbob]

Thanks Mathh! Your work looks great too! I'm pretty good with engine building, cylinder head development, and basic machine work but I'm at the shallow end of my learning curve with fabrication. It's what I have always aspired to do though, mix and match different bike parts to make something trick and unique. The CNC machine I have access to now helps a great deal

[crazy steve]

Hi Steve,
chain is designated by it's pitch and roller width in 8ths of an inch so a 530 chain has a 5/8" pitch and a 3/8" roller width. 520 chain has a 5/8" pitch and a 1/4" roller width.
Apart from the width they are the same effin' chain so no, a 520 chain won't give any more room save sideways and sideways ain't the problem...

Learn sumpin' new everyday.... I only mentioned it because I've seen guys swap to these chains to gain space, but I didn't ask the details...

[fredintoon]

Learn sumpin' new everyday.... I only mentioned it because I've seen guys swap to these chains to gain space, but I didn't ask the details...

Hi Steve,
betcha they were saving weight, not space. Most likely those guys were racers, or racer wannabes? Racing is all about saving weight and not caring how long the bike stands up so long as it's good for a weekend at the track.
Lets mentally put a race-stripped XS/XJ 11 on a diet for the track.
Swap out the middle & rear drives for a chain & sprockets, save 30 to 40 lbs right there AND get 10% more HP to the rear wheel.
Save ounces and ounces by using standard rather than O-ring or X-ring chain.
Save grams and grams by using 520 chain and sprockets instead of 530.
Or like big ol' Johnny Manley, who used to race formula bantam back in the 1950s; starve yourself 40 lbs lighter before race day.