Bear takedown lengths?

[Wheels2]

I see risers and limbs in different lengths.
What length is a "A" riser, "B" riser, and "C" riser?
Same for limbs...
Although it seems that currently only risers in "A" and "B".  Limbs' in "1" and "3"
Which limbs are rated for FF string?  Red tips only?

[woodchucker]

Any of the newer limbs will except FF strings.

My 2015 came with white tip limbs and a FF string.
The white tips, red tips, and the new 50th Anniversary black&white tips, are all good for FF strings.

As for risers, only A & B are currently offered. Same for limbs, only 1 & 3
A-handle with #1 limbs gives you a 56" bow.
B-handle with #3 limbs gives you a 64" bow.
Either an A #3 or a B #1, will give you a 60" bow.

[M60gunner]

What Chucker said. Only way to buy new #2 limbs is from an aftermarket bowyer.

[kopfjaeger]

Here some information

[Wheels2]

Thanks for addressing my curiosity.