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What size front sprocket does the F4I have? I want to do a 46 on my RR and I know the F4I already has a 46 rear. Just want to know what size the front is on an F4I.
 

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Front is a 15 tooth on the F4I. The tranny is different though, so 15/46 will be much different on the RR than on the F4I. Most people go 15/45 seems like to me, and that is still quite lower than the stock 16/43. Let us know how it is if you end up going 15/46, and if you have any chain length issues.
 
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