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Grearbox

Joined Jun 2013
1K Posts | 268+
San Francisco CA. USA
That would be the best grearbox to run for Supermoto/Motard MX (FX) or Enduro (FE)?
 
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I think you need the Jermaine gearbox

the Jermaine Grear-box.

they are all the same fella from 2001-2008 bar the CR 6th gears for the 2001-2002 FC470.

regards

taffy
 
talking about 2009-2012 and there not same FX is close ratio and FE is wide ratio
 
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It seems supermoto guys on here care most about top end horsepower, which I take as an indication that closer ratios could be good ...

I guess it also depends on how the engine delivers power and how you're riding of course :)

Maybe the Gearing Commander online calculator can give an intuitive feel if you poke around in it?: Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator ... you can drop in gearbox ratios etc. and it outputs graphs and all manner of information.

Then it's probably worth a check what the KTM factory supermotos use for gearboxes?
 

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