Whizzer Value

[fat tire trader]

You’re looking for the indents on the inside of the left side chainstay/seat stay, where the final drive belt passes through.
Were they done with finesse, or were they done by a knuckle dragger?
These slight modifications had to be made by the installer of the Whizzer Kit on the early bikes.

Bike guy, cyclingday beat me to the answer.

 

[bikewhorder]

I could be wrong but don't think there was factory Whizzer frame like this.