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Greetings fellow Ducatistas,

I own a 96 900 ss/cr and my rear tire needs replacing but I want to go to a 180 tire vs. replacing my current 160. Problem is the ss/cr comes with a 4.5 rim, while the ss/sp comes with a 5.5 rim.

I called Ducati dealer here in Arizona, and the parts guy tells that the swingarm will have to be changed as well. The ss/sp came with a aluminum swingarm, while the ss/cr has a steel one.

But I hear from others that the 5.5 rim will fit perfectly on the current ss/cr swingarm.

Has anyone done this and can offer some clarity please?
Of course, if this can be done, challenge is finding a good condition 5.5 rim.
So I will proactively ask this as well....can I go we after-market light-weight rims (assuming I cant find a 5.5 rim?)

btw - I searched for about an hour on the forums before posting. So I apologize if my question is redundant.

[email protected]

Current Rides
2008 BMW R1200 RT
1996 900 ss/cr

p.s
I recently upgraded the front forks to adjustable ss/sp type.
 

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I put a 5.5 Marchesini on my '98 900CR with no problem. You might check out a company called Carrozzeria for good aftermarket rims.

Regards,

Jeff
 

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I can only speak for FI models but it should work fine.

Check the front sprocket to make sure it aligns properly with the rear sprocket. On the FI bikes it just requires you to flip the front sprocket and it will be correct. you will also have to adjust the chain guide that is on the swing arm.

Cheers, Brew
 

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I wondered this same thing, but what about the hugger? My 95 900SS/CR has the OEM 4.5" wheel, but a PO had pinched a 180 onto it. With that tire, I could not get the hugger in place, when I went back to the correct 160 the hugger fits fine. I had always assumed the swinger would have to change in order to do this swap the "right" way meaning everything that should be there will fit properly (I realize a lot of you will advise to ditch the hugger regardless).
 

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All the SS wheels with same axle diameter are the same. Just need a conical washer/spacer if you don't have one. It goes on the sproket side against the bearings. You do NOT need a new swingarm.
 

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as above, spacer is all you need to align up the chain, i swapped my 4.5 for a 5.5 no props.
 

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Yeah it is no problem, if you get all the right pieces at once. Or you can even get creative. I put a 5.5 on with a 170 Q2 and it looks pretty nice, i went the creative route.
As stated before, just look for an 900SS wheel instead of a CR, be sure to ask if it's 5.5. Try to get one with the correct spokes to match your front.
 

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You guys going for the Fat Boy look? Are you putting 140s up front?





:p:p:p:p:p:p:
haha the fat cati!!

no with a 180 rear you get more tread on the sides when leaning so have more grip ;) my theory anyway haha plus it looks better :p :p :p :p :p
 

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Hey guys,

Got a 750 SSie and had a misshap with the local tire shop who ended up offering to pay for a "new" rear rim. I eventually found a brand new 5.5 rim for the >99 900 series on ebay for 200 Euros + shipping and went for it so now it's kinda to late.. Realized the 160/60 is to small so I've ordered a 170/60. Really do not want to loose agility but with the extra rim weight I suppose I lost anyways. :alien:

So now I'm anticipating the delivery guys within a week or two and am concerned about the "bolt on" match. :(

Basically it seems my options are:

a. flip the front sprocket and adjust the chain guide

b. use a conical spacer "if I don't have one already" :confused: When I removed the rear tire there was a conical spacer inbetween the sprocket and the rim bairings. Just reuse this and I'll have no issues? Or add a spacer to the rear wheel which would offset (uncenter) the wheel to the right?? :confused: :confused:

Also read somewhere that the cush drive and spacer for the 4.5 and 5.5 differ, should I go looking for the 5.5 setup or will I be fine with what I've got?
 

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My '96 SS CR came to me with steel swing arm and 5.5 wheel. I find the 180 tires to be cheaper and more plentiful than 170's.
 

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OEM wheel assembly is the same regardless of the wheel width or swingarm material. If you already have a functioning bike you have everything you need to swap wheel widths or swingarm types. The only thing you need to do is flip the front sprocket around to align the chain correctly; biased to the inside for the 4.5" rim, biased to the outside for the 5.5" rim.
 

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Never heard about flipping the front sprocket. I just measured the width on my 4.5 and spare 5.5 rim.
There is no difference in hub widths. (approx 6 1/8")back of disk to outer cush hub rubber.

95CR. front tire 120/70/17, Rear 180/55/17 speedometer ten MPH higher.

Front sprocket flat both sides , i see no way flipping it will make a difference.
 

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Never heard about flipping the front sprocket. I just measured the width on my 4.5 and spare 5.5 rim.
There is no difference in hub widths. (approx 6 1/8")back of disk to outer cush hub rubber.

95CR. front tire 120/70/17, Rear 180/55/17 speedometer ten MPH higher.

Front sprocket flat both sides , i see no way flipping it will make a difference.
The front sprocket should have a protrusion on one side, about 1.5 CM or so. See attached photo.

Take a look at the parts diagrams, the only part number differences showing are the wheel itself, all the other parts are shared across all models.
 

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Ok I see the offset now. So your picture shows offset for a 4.5" rim ?

So spacing on the SP swing arm is is different than the steel CR swing arm.
 

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swingarm spacing is the same. the sprocket carrier is often different. With the 4.5 wheel and the rear sprocket closer to the centerline of the bike you have the front sprocket protrusion facing out. When using a 5.5" the front sprocket is flipped with the protrusion facing in.

IIRC the 750 and 900cr carriers are the same, later models (monsters SS?) the factory started using the same carrier on all but different cone spacers to center the wheels.
 

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haha the fat cati!!

no with a 180 rear you get more tread on the sides when leaning so have more grip ;) my theory anyway haha plus it looks better :p :p :p :p :p
I have tried a 180 rear and a 170 rear on my ST4 and much prefer the 170. The bike turns quicker and easier with the narrower tire.

Mike
 
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