@DismalScientist 114971 wrote:
Actually, the current specs say that the 7.1 FX has a 7 cog freewheel. If the cogs are spun off the hub and the ratchet mechanism is with the cogs, its a freewheel. If after after unscrewing the “nut” the cogs come straight off and the ratchet mechanism remains with the hub, it is a cassette. In general, with 7 cogs or less, it is a freewheel. 8 cogs or more is likely a cassette.
For online cheap wheels, I would look at nashbar or niagaracycle. The 35 refers to the width of the tire, not the rim. For that size tire, I would look for wider rims.
Thanks to all of you, this is extremely helpful advice.