how big on stock chain?

How big of a rear sprocket can I go with the stock chain on my 250x? I prefer the stock gearing on the street, but not on the track.

I think you can go up one or down one on the front sprocket and keep the stock chain, but once you change the rear you have to get a new chain, from the old days if I can remember one tooth on the front equals 3 on the rear for gearing, from what I have read if you go 13 front 47 rear you may need a 112 link chain, Im sure someone will chime in here and prove me wrong, cheer`s

If you go to the top of this sub forum to the Sticky Threads you will find this most informative post:

https://wr250rforum.forumotion.com/t5-chains-and-sprockets