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GS1100 swingarm swap
- stonemaster
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I am almost 100% sure a 180 will physically fit in the gs arm, you for sure need an offset sprocket.
yea the 180 will work with offset
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- 55fbomb
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1974 CB750
1975 CB750
197? CB750 mutt
1977 KZ1000
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- subby
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You know at first I thought no way a 180 will fit, so as I have a GS1000 in the garage that happens to have a 180 rear mod in progress and also the original swing arm, hence the 2 photos (blue swing arm is the GS1000 and the 180 rear alloy swing arm is in the black GS1000 frame…photo explained) I just had to see for myself…
And to my surprise as you can see NO PROBLEM even when you have a brand new chain and the wheel is as far back as possible. To give a rough idea of spacing its about 8-10mm to the tyre so I believe 190 is even possible! ……. The brake bar needs to be adjusted and the chain will definitely rub as its about 15-20mm away from the tyre when it’s a 120 so offsets are needed but to answer if a 180 or 190 will fit……………………
YES!
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in the stable:
1981 Kawasaki KZ750
1980 Suzuki GS1000
1980 Suzuki GSX750
1982 Yamaha XJ650 TURBO (3 of)
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- Polar_Bus
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How big a tire can you fit in a GS1100 swingarm? I have heard the biggest is a 160mm and I've also heard the a 180 or 190mm tire will fit. Anyone know for sure?
You heard bogus info. The widest tire that you can fit into a stock GS1100 swingarm is 140mm .
Most of the GS modification guys swap to early GSX-R swingarm and 18" or 17" GSX-R wheels and add a shim to offset the countershaft sprocket, then I believe you are ok up to 160-170mm .
Bikes:
'84 GPz1100
'06 HD Fatboy
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- storm rider
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- Polar_Bus
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I am confused. The previous photo shows a 180 in there. What am I missing?
Let me further clarify, my previous comment was based upon a completely stock GS1100, no doubt a wider tire will fit, but you need extensive mods to get there...
I had an '82 GS1100E and I know for a fact, there was only about 5/16" of a gap between the tire and the chain with a 140mm tire...
Bikes:
'84 GPz1100
'06 HD Fatboy
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- 55fbomb
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1974 CB750
1975 CB750
197? CB750 mutt
1977 KZ1000
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- stonemaster
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