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Discussion Starter #1
So I'll be doing a 415 conversion on the race bike but I don't know what gears I should be going with. I've never had this bike on a track or even on the road so I have no idea where to start. I believe the stock gears are 14/42 or something similar. I've seen people going with gears like 18/52 which seems like an odd change.

What gearing do you recommend and why?
 

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this might help

http://www.gearingcommander.com/

for the street i swapped the front sprocket for a 15 tooth, left the rear stock and the speedo is pretty much spot on, works fine for me on the street

race track might be a different kettle of fish though
 

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Discussion Starter #3
Gearing commander it great for some things but I've found that it doesn't always apply to real world scenarios because it doesn't take horsepower, wind resistance, or inaccurate rpms into consideration. It would be difficult to choose the proper gearing with it.
 
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