What year is your bike iy is rm80 the frame number is RC12A-101568?
I'm searching for the same answer. On my frame it reads 'rc12a -
106948'
mine has to be one of these years - 86, 87, 88, 89 because it
has a rear drum and front disc, the swingarm is the thicker, weird
shaped type with the diagonal line on each side. It also has a
light blue frame, but it may be a custom job. The rear spring has
been painted black. It is yellow underneath.
I think it has a newer 82cc engine as it reads 'd106 - 120686'
and it is dark grey in colour.
What a nice bike though, loads of new and uprated parts. Goes
like a little rocket.
Any help would be nice.