Well late last week I changed my front sprocket from a 15T to a 14T. (on my F3) Just a new front sprocket ($21)since the chain was like new and cheaper than 520 conversion. When chain needs replacing i will consider the conversion.
Really easy to install. much better that I was expecting. took about 45 from start to finish.
Feels like quite a bit more torque. But the best thing so far is that when I used to ride around town I was in the 5k rpm flat spot but now i am up in the 6k range where the pickup is.
thanks for all the help during my research time.
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1996 600F3 K&N Air Filter Vance and Hynes 4S slip-on 14T front sprocket That's it so far!
Well my front 15T PBI sprocket came in so now I have both changed. 15T on the front and 46T on the back with a DID XRing chain. Had to take out something like 7 links though.