ALL THE CT70 AUTO'S HAD A 15 TOOTH FRONT SPK. STOCK. THE 4 SPEED CT70'S HAD A 14 TOOTH STOCK.
STOCK ON THE ATC70'S 73 TO 81 MODELS HAD A 14 TOOTH AND 82 TO 85 HAD A 13 TOOTH FRONT SPROCKET.
BUT ANY OF THESE SPROCKETS WILL WORK ON YOUR CT OR ATC 70, IF YOU WANT TO CHANGE THE GEARING.
PASSPORTS TAKE A 14 TOOTH FRONT SPROCKET AND OUR #(24K) FRONT LOCKING PLATE.
ONE CUSTOMER SAYS
"And just for info, the 17 tooth sprocket does fit the Passports and makes a noticable difference. Not as much power at start but surely enough to get you started and then in top gear a much more reasonable engine speed. Thanks again and I will order from you again."