[F.N.G]

I am wanting to purchase some brakes online for my medium Moment that i am building. I found some Formulas with 1000mm (39 inches) front cables and 1500mm (59 inches) rear. Is that enough cable length for my medium frame? I roughly measured what i thought i might need for rear brakes and i came out around 63 inches??? Just a rough guess/measurement though.

Any help with your known measurements will be greatly appreciated.

Thanks.