Hole Diameter: 22mm for left, 25mm for right side
Twist throttle grips that fit 7/8" - 22mm
The diameter of: 28mm
The inner diameter:22mm
Fitment:
Full Set fits 7/8" Handlebar 
Attention! Please mesure your handlebar before you purchase.
Package Includes:
1x Pair of hand grips
1x Twist throttle housing