The bar size is 7/8". Yes the throttle grip has a larger size inner diameter to go over the throttle tube. The grip kit will take this in to account.

The throttle tube is plastic and if you are super aggressive with a blade you could damage the tube

 

. The grip kit will take this in to account

grip "kit"?

With stock grips off, I discovered the throttle side is 1" (actual 1.01 according to my calipers)
left side 7/8"

I made these cheapies work for now

Speedmetal Foam Grips - Cycle Gear4

They're for 7/8" bars, but there was enough stretch to soap and slip on throttle side.
I bought them just in case the better grips I bought wouldn't fit.
Glad i did .
I'll take back the others tomorrow

my bright idea now is to find the grips I want for 1" bars and wrap/shim the left side


KTF

 

Even looking at the grips you have pictured I can see that they planned for the 2 different sizes. The end caps are different. One of the grips will be thinner to fit the throttle side while keeping the outside diameter the same as the clutch side. They even included a ring to keep the grip from sticking at the switch housing when it is rotated.

Grip kit just means a package with both grips in it.

 

Even looking at the grips you have pictured I can see that they planned for the 2 different size

nah, they're both same diameter all the way thru.
I presume the caps are different because they're able to stretch?

KTF

 

hold the fone, I'm an idiot

donno about the $7 dollar foam ones, but just mic'd the better ones.
sure as sheeit one is larger I.D.

I was trying to put a square peg in a round hole with the wrong one on throttle side 😞

KTF