Join Date: Apr 2019
Location: Austin Texas, USA area.
You can go to a 17T without any chain lengthening, but you'll have to remove the case guard and grind it to a slightly larger diameter to accommodate the larger countershaft sprocket. Sprocket Specialists will sell you the sprocket for $33 and installation "how to" is on this forum. This modification really made a difference in my '17 CB-500F's road manners. 1st gear is not at all too "tall" after the installation. No more clutch slipping getting going than previously. Cruising relaxed by 600 rpm at 60 mph.
"You don't stop riding because you got old...You got old because you stopped riding,"