As I remember from Sweden in the 70s the limit was 86.4 which is 48/15, did not restrict some juniors from being quite fast. I also remember a 16t cog as common smallest for boys, 18t may well have been used for younger boys. But all this is guesses and the US may vary.
have a peaceful xmas
Olof Stroh
Uppsala Sweden
>
> In a message dated 12/24/02 4:33:09 PM, jswan@optonline.net writes:
>
> << A Junior who is required to ride on restricted gears. >>
>
> As I remember, the limit was a 96" top; most riders used a 52 or 53 x 15
> (I think -that was a while ago!). I still have a 15-19 five speed SunTour
> block from those days. To check, I remember officials "rolling out" bikes. Is
> this still in effect? I don't think there was any restriction prior to about
> 1975.
>
> Best regards,
> Wes Gadd
> Unionville,CT