chain and sprocket change

[macca k5]

hi ive got a 1974 K5 im restoring and she is due for a chain and sprocket change any hints or clues i think the ratios are 15 primary and 44? secondary
thanks
derek

[Re-run]

Nope they are not. You either have a k4 or k5, they coincide with the year of the bike. If you have a 75, it was likely 17/48. If it was 74, then is was 18/48.
Many however find the 17 front to be better. better pickup and mpg.

[macca k5]

18 / 48 no worries thanks for that yeah the bike was bulit dec 74 so a K4 she is