Yep welcome to the site mate.
My kids are both rolling around on Red line micro minis like your FMF - half the weight and half the hassle of a steel kids mountain bike with gears they'll never use so good move. Stick a set of new tyres, brake blocks and cables on it and give it a grease then get them on it
I'm pretty sure it was JTsmooth on here who was flogging oldschool skinwall tyres - running 1-3/8" on the front and 1-1/8" on the rear to give them a nod to the oldschool but all new school tech and geometry
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