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315R Gearing For Trail Use.


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#1 yamaharhar

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Posted 23 March 2012 - 08:02 PM

I intend to use my 315 for trail riding. Does anyone have any experience of what gearing to use to give 50-60 mph on the road. Your expert help would be apprieciated.


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#2 smiffy

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Posted 23 March 2012 - 10:37 PM

With a 10tooth front and 42 tooth rear i could hit 60 KPH with a bit left,im trying a 9 tooth at the moment but not been anywhere i could wind it it up,if that helps.

Andy cdt.

#3 yamaharhar

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Posted 24 March 2012 - 09:56 AM

Thanks Andy. Mines currently running 10/40, so should be marginally faster top end than yours. When the bikes MOT'd I'll try it out.

#4 manofsteele

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Posted 25 March 2012 - 04:11 PM

I'm running 10/40 currently and I'd say you would want to go up to 10/38 something like that.

#5 yamaharhar

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Posted 25 March 2012 - 05:47 PM

Thanks for that. Does anyone know what 38 tooth sprocket will fit. It seems like all listings for 315's stop at 40t rear and 10 t front.

#6 manofsteele

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Posted 26 March 2012 - 08:17 AM

No clue.....

I'd speak to Renthal direct if I were you. I'm only assuming one exists....

#7 sherco tom

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Posted 26 March 2012 - 09:51 PM

i have a 315r and my dad has a 98 Gas Gas TXT 250. They both share the same rear sprocket, although not sure if they make a 38t for the Gas Gas.. could be worth a try though! Hope this helps! :icon_salut:
God is british thats why we don't have earthquakes in this country... You don't **** on your own doorstep




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