Date: 30-07-21  Time: 11:27 am

Author Topic: Sprocket ratio  (Read 745 times)

Hades

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Sprocket ratio
« on: 24 May 2020, 11:32:04 pm »
Hello all.


Standard FZ8n sprocket setup is 16 front 46 rear.


Has anybody tinkered with different sprockets? 


Im looking to increase fuel efficiency and i understand that either adding teeth to the front or removing teeth from the rear is the way to reduce the ratio. This lowers acceleration / torque which you gain back top end.


My concern is if i add one tooth to the front and remove one from the rear how will this effect the number of links required in the chain?


I have a feeling i may have to adjust the wheelbase adjuster

vinnyb

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Re: Sprocket ratio
« Reply #1 on: 30 May 2020, 12:38:59 pm »

 https://www.gearingcommander.com/
This is a useful site if you're thinking about altering your gearing.
« Last Edit: 30 May 2020, 08:30:50 pm by vinnyb »

celticbiker

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Re: Sprocket ratio
« Reply #2 on: 09 September 2020, 09:29:57 pm »
That's a big change. Adding one to the front is about the same as removing two from the rear.
I know what you said but what exactly is the problem?
I commute 100 miles every day and return about 53mpg and that's not hanging around.
It's no tdm900 but it's not bad.
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agricola

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Re: Sprocket ratio
« Reply #3 on: 09 September 2020, 09:56:03 pm »
Hello all.


Standard FZ8n sprocket setup is 16 front 46 rear.


Has anybody tinkered with different sprockets? 


Im looking to increase fuel efficiency and i understand that either adding teeth to the front or removing teeth from the rear is the way to reduce the ratio. This lowers acceleration / torque which you gain back top end.


My concern is if i add one tooth to the front and remove one from the rear how will this effect the number of links required in the chain?


I have a feeling i may have to adjust the wheelbase adjuster


Almost certain you will have to adjust the chain, may even need a longer one. As for gain at the top end, it will take you longer to get there. Double check the chain run to be sure that, with a larger front sprocket, the chain isnt dragging across something.