Snow Bikes have been around in one form or another for 100 years or so.
The conversion kits cost a little bit more these days.
The ad copy:
Convert Your Cycle
Go In Snow!
Complete Track Unit and Ski
send check and we pay frieght, or send $25 and we’ll ship balance C.O.D. (weight 150 lbs.)
Convert for year-round fun!
All quality steel construction
Fits mist standard bikes, specify make and model. Drive belt 39” x 16 1/2” wide, steel cleats on 1/4” Nylon belt for rugget traction.
Garfield, Wash. 99130