You can change it to a fat suspension by installing 4.0J with 8 inches.
It is the maximum size that can be installed with a normal stem and a normal swing arm.
However, the front fork requires a 32080 dust seal, a 4mm front offset sprocket such as 36022, and a 39403 offset sprocket spacer.
● Recommended tire size 120-70-8 (B77)
● Recommended tire tube 3.5-4.0-8
Rim width 114mm
 
Valve holes for drum brakes, both front and rear brake panels are on the side.
For disc brakes, both front and rear are on the sprocket side.
[Caution] The shape of the rim may be different on the left and right. It is not a malfunction because it is due to lot error. Please note. When 4.0J is installed, the tire interferes with the chain cover. Remove the interference points on the chain cover.