To me, "fitting" would mean that the rider fits on the machine. The rider can reach all the controls comfortably with their feet on the floor boards/ foot pegs and backside on the seat. I have a 13yo grandson who is going to need an adult size machine this year. The Sportsman 90 will still pull him around, but he looks like a circus bear on a tricycle. He doesn't have the experience yet, so I will put him on one of the 325 machines when we go to the trail.
Mine: 2018 Sportsman 850SP - 26" Bear Claw HTRs on OEM steel wheels(I really don't like the Aluminum ones)
Polaris Hand warmers, Mirrors.
Hers: 2007 Sportsman 500 EFI, Polaris Winch, 26" Bear Claw HTRs on Moose 427x Wheels. QSC Clutch Kit, Hand Warmers
2001 Magnum 325 MOSE 12" rear wheel conversion. 25" Sedona Coyote tires
2001 Magnum 325 Warn winch and Moose 60" plow
2017 Polaris Ranger 1000XP - Roof and front glass
SOLD 2004 Sportsman 600 Twin