Gear Ratios Help

[Porter]

Could anyone tell me what the gear ratios of the following bikes are please:

Carlton Super Course

Carlton Pro am12

I think the front on both is 52/42, but I don’t know the rear block. I know they are both six speed, but what are the number of teeth on both bikes?

Also, I think the Pro AM12 has plain steel forks. Does the Super Course have 531?

I would appriciate your help please guys

Thanks in advance

 

[Nob]

The History Man on here is the expert on Carlton’s

I’m guessing 6 speeds will be a 13-24 or 13-26 set up but ratios unsure of.

 

[Nob]

The History Man on here is the expert on Carlton’s

I’m guessing 6 speeds will be a 13-24 or 13-26 set up but ratios unsure of.

Pro Am I believe was 501 tubing..
Super Coarse in sure was 531 butted tubes.

 

[Porter]

Thanks for the input Nob. The pro am was 531, i had one in the 80s, and it had the 531 sticker on it.

But I think the forks weren't 531, not sure

Anyway

Cheers