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ducatipaso.org • View topic - 750SS sprockets
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 Post subject: 750SS sprockets
PostPosted: Sun Mar 01, 2009 3:38 pm 
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Joined: Wed Mar 28, 2007 12:00 am
Posts: 112
Location: South Florida
model: 907 I.E.
year: 1992
Theres one thing I'm having a hard time dealing with this bike is the gearing, it's grossly over geared at least for my use!!

It has a 14/37 sprocket combo which makes the bike happy only at high revs/speed. In low gears/slower speeds it "bogs" and "snaps" the chain. 1st gear is extremely short!

Not being a young lad anymore my wheelie, 100+ mph, knee scraping days are over (too chicken for that stuff now :cool:) , I'm more into city/work commuting and the "slow" enjoyable rides ... ;)

So what do u guys suggest:

1- front or rear sprocket change or change both?
2- what do you think of a 39 or 40 teeth rear sprocket with the 14 front?
3- will I need a new chain with a 14/40 combo?

Best rgrds, ride safe!

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1992 Ducati 907 IE
1993 Ducati 750 SS
2006 Harley Davidson Sportster
2008 Harley Davidson ElectraGlide Classic


Last edited by Cybermunster on Sun Mar 01, 2009 5:33 pm, edited 1 time in total.

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 Post subject: Re: 750SS sprockets
PostPosted: Sun Mar 01, 2009 4:42 pm 
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paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
Posts: 5494
Location: southern Germany
model: 750 Paso
year: 1987
the original front sprocket is one with 15 teeth

G.


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 Post subject: Re: 750SS sprockets
PostPosted: Sun Mar 01, 2009 4:46 pm 
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Joined: Wed Mar 28, 2007 12:00 am
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Location: South Florida
model: 907 I.E.
year: 1992
I'll double check, could have missed a tooth, but it seemed to be 14 ...will update asap ...thanks

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1992 Ducati 907 IE
1993 Ducati 750 SS
2006 Harley Davidson Sportster
2008 Harley Davidson ElectraGlide Classic


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 Post subject: Re: 750SS sprockets
PostPosted: Sun Mar 01, 2009 5:09 pm 
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paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
Posts: 5494
Location: southern Germany
model: 750 Paso
year: 1987
could be that the last owner changed it. There are aftermarket 14 teeth sprockets, at least this would explain the behaviour you mentioned. My SS repair manual says original is 15/37.


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 Post subject: Re: 750SS sprockets
PostPosted: Sun Mar 01, 2009 5:37 pm 
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paso grand pooh-bah
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Joined: Sat Sep 03, 2005 12:00 am
Posts: 1323
Location: SF Bay Area
model: 750 Sport
year: 1990
15 / 40 on my Sport with 17" wheels and 5 speed.
The 900ss is a six speed, so first can be geared lower without loosing top end.
750 motor is 5 speed, so there is some compromise.

Cheers,

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Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.


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 Post subject: Re: 750SS sprockets
PostPosted: Sun Mar 01, 2009 6:21 pm 
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Joined: Wed Mar 28, 2007 12:00 am
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Location: South Florida
model: 907 I.E.
year: 1992
Not concerned with top end as I usually cruise at 70mph~75mph max.
Need smoother low speed/city driving gearing, specially 1st gear which is borderline ridiculous.

I've heard getting a 15 front sprocket is not easy so what can I expect from a 14/39 or 14/40 combo?
Can I keep my actual chain with these combos as it is in good condition?

thanks

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1992 Ducati 907 IE
1993 Ducati 750 SS
2006 Harley Davidson Sportster
2008 Harley Davidson ElectraGlide Classic


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 Post subject: Re: 750SS sprockets
PostPosted: Sun Mar 01, 2009 6:37 pm 
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paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
Posts: 5494
Location: southern Germany
model: 750 Paso
year: 1987


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 Post subject: Re: 750SS sprockets
PostPosted: Sun Mar 01, 2009 6:49 pm 
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Joined: Wed Mar 28, 2007 12:00 am
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Location: South Florida
model: 907 I.E.
year: 1992
got the link to that auction? USA? EU?

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1992 Ducati 907 IE
1993 Ducati 750 SS
2006 Harley Davidson Sportster
2008 Harley Davidson ElectraGlide Classic


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 Post subject: Re: 750SS sprockets
PostPosted: Sun Mar 01, 2009 6:53 pm 
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paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
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Location: southern Germany
model: 750 Paso
year: 1987
EU (PMed you the link)


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 Post subject: Re: 750SS sprockets
PostPosted: Sun Mar 01, 2009 6:56 pm 
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Location: South Florida
model: 907 I.E.
year: 1992
CORRECTION...front sprocket IS a 15 ..go figure I missed one tooth on my first count.
You were right Paso750!

So, talk to me guys how about a 15/40 combo for the '93 750SS will that alleviate my problems??

Thanks!

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1992 Ducati 907 IE
1993 Ducati 750 SS
2006 Harley Davidson Sportster
2008 Harley Davidson ElectraGlide Classic


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 Post subject: Re: 750SS sprockets
PostPosted: Sun Mar 01, 2009 9:22 pm 
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Joined: Fri Feb 06, 2009 5:40 pm
Posts: 20
Location: Germany
model: 750 Sport
year: 1988
So you are running 15/37, which is the original configuration. I was running my SS 750 with the same gearing. 15/37 is definitely too long.
The best compromise would be 15/39. (Thats the gearing I use on my 888)

Greeting from Germany

Volker


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 Post subject: Re: 750SS sprockets
PostPosted: Fri Mar 06, 2009 2:26 pm 
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paso grand pooh-bah
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Joined: Mon Jul 19, 2004 12:00 am
Posts: 1714
Location: Eastern Shore, MD
model: 750 Paso
year: 1988
Throw a 14 tooth on the front and adjust the chain. It will solve your problems the easiest, cheapest way.

Buy one at http://www.ca-cycleworks.com/shop/catal ... chain.html


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