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Discussion Starter · #1 ·
I have an 05 600 RMK.

Have added a 1.25 switchback track( 144 inch). I am looking to make this machine quick all the way thru the powerband.

Stock gearing is 2.05 (19/39) ..... where should I be?? 1.8 's..??

What can expect for top end.?

How much improvement would a 660 Big Bore give.?? Would gearing change with a 660..?
 
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