New retro grips

[postoak_imp]

How are motorcycle grips sized? I want a replacement set that is somewhat larger in diameter and will allow me to keep the bar ends. I measured the ones on the bike and they seemed to be 5" long and approximately 4 1/8" circumference, which converts to about 1.31" diameter.

The circumference of my Goldwing Valkyrie grips is about 4 15/16" and they fit me, but might look weirdly large on the CB, so something between the CB1100's and the Valkyrie's.

I assume the odd sizes are due to these bikes being Japanese and probably metric.