6th Gen - Will Stock Chain Accommodate a +2 Rear Sprocket?

For normal use, you are probably right. The fact that the wheelbase and height will change (as pointed out by CandyRedRC46) as you make adjustments during the life of the chain, they are probably not very noticeable. But going from the 43 to 45 might make things a little more pronounced. Once I get it out in the spring, I'll see if I notice.

 

What would be easier to do, fit a 16t front or 45 tooth rear? might try it mid way through this chains life.

 

Potato, potahto. But if you change the countershaft sprocket, lube up the splines good with
anti-seize before putting on the new one. Personally I went with the 45 tooth driven sprocket.

 

Easier? The rear sprocket. I found 16t front too much so went with 17/45 in steel. A 45t steel was kinda hard to find surprisingly.

 

A stock RC51 will do 205mph!

 

doubtful

 

There's proof....https://www.roadracingworld.com/news/man-accused-of-going-205-mph-on-a-honda-rc51-pleads-guilty/