Motorcycle Sprokets with More or Less Teeth

2006 Honda Shadow 600.

Just out of curiosity ...

I think my motorcycle as 16 teeth in the front and 44 in the back. Where
would I get sprockets with different numbers of teeth?

Also, I'd like to experiment with upping my gear ratio about 10%. 16/44 is
0.3636, so I would see a target of 0.4. 17/43 seems like it might do it ...

Thanks.

--
David T. Ashley (dta@e3ft.com)
http://www.e3ft.com (Consulting Home Page)
http://www.dtashley.com (Personal Home Page)
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Posted by BryanUT on October 16, 2008, 12:53 pm

> 2006 Honda Shadow 600.

> Just out of curiosity ...

> I think my motorcycle as 16 teeth in the front and 44 in the back. =A0Whe=

> would I get sprockets with different numbers of teeth?

type "google.com" into your browser address bar. Press Enter.
type "motorcycle sprockets" into the search box. Press Enter.

Posted by David T. Ashley on October 16, 2008, 2:02 pm

> 2006 Honda Shadow 600.

> Just out of curiosity ...

> I think my motorcycle as 16 teeth in the front and 44 in the back. Where

> would I get sprockets with different numbers of teeth?

>type "google.com" into your browser address bar. Press Enter.

>type "motorcycle sprockets" into the search box. Press Enter.

The humor is appreciated.

I just thought I might get additional advice like where to buy from or not
to buy from or sprockets that are incompatible -- that sort of thing.

Thanks for the search engine instruction ...

Posted by Steve L on October 16, 2008, 8:40 pm

> 2006 Honda Shadow 600.

> Just out of curiosity ...

> I think my motorcycle as 16 teeth in the front and 44 in the back.

> Where

> would I get sprockets with different numbers of teeth?

>type "google.com" into your browser address bar. Press Enter.

>type "motorcycle sprockets" into the search box. Press Enter.

oof!

Posted by . on October 16, 2008, 1:24 pm

> I think my motorcycle as 16 teeth in the front and 44 in the back. =EF=BF=

=BDWhere

> would I get sprockets with different numbers of teeth?

http://www.shopmawonline.com/shop.htm

They have links to the Tucker Rocky and Parts Unlimited street
catalogs.

Also try www.denniskirk.com and even www.jcwhitney.com

> Also, I'd like to experiment with upping my gear ratio about 10%.

Does your bike have a 4-speed transmission? It's possible that the RPM
drops 20% when you shift from 3rd to 4th, in which case a 10% gearing
change makes sense.

But the typical standard or sportbike motorcycle transmission has gear
spacings that drop the RPM about 15% as you shift from 4th to 5th or
5th to 6th.

You would generally want to change the gearing no more than 7.5% in
that situation, or you would find yourself downshifting back to 4th of
5th frequently.

=EF=BF=BD16/44 is

> 0.3636, so I would see a target of 0.4. =EF=BF=BD17/43 seems like it migh=

t do it ...

We usually divide the number of teeth in the large sprocket by the
number of teeth in the small sprocket.

44/16 =3D 2.75:1

43/17 =3D 2.53:1

That's close to the right amount of final drive change to reduce your
RPM by about 8% while cruising in top gear.

It makes good sense to use sprockets with odd numbers of teeth,
because they wear more evenly. You'll see wear distinct patterns on
pairs of teeth on the final drive sprocket when you use sprockets with
even numbers of teeth.

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