Plus wheels are roating mass which count alot more than staionary mass. Thoes heavey rims and tyres on the out side will cound alot. Rotating inertia whihc is kind of like mass is the sum of the mass times the radius squared so any excess weight on the rim / tyre is equivalent to carrying areound that excess weight times the raidus of your wheel squared.
Plus wheels are roating mass which count alot more than staionary mass. Thoes heavey rims and tyres on the out side will cound alot. Rotating inertia whihc is kind of like mass is the sum of the mass times the radius squared so any excess weight on the rim / tyre is equivalent to carrying areound that excess weight times the raidus of your wheel squared.