Need rims do the mongoose cx24v450

SOURCE: Mongoose 20 IN Boys El Rey Bike

any local bike store...or ebay.

SOURCE: back tire changing on mongoose gravity games bike

If you have pegs on the back you will need a deep socket to fit the nut and a socket extender and a socket wrench. with the wheel off it is just the same as changing any other bike tire. Just make sure you check the inside of the tire carefully for anything poking through that may puncture your new tube. Also check to see if you need a new tire and make sure you inflate the repaired tire to the correct pressure or you may get a pinch flat.

SOURCE: took the back tire off of a Mongoose Racer X 7808

I hope this helps:http://www.mongoose.com/usa/eng/bmx/MongooseTemplates/downloads/OwnersMan_Mass_010307.pdf

SOURCE: New Mongoose 700c Men's Paver bike: Mongoose 700

Local bike shop determined that both wheels were defective. I took the junk back to Walmart and got a refund... PROBLEM SOLVED!!

SOURCE: freewheel spins both ways cant peddle no were how

The freewheel has a ratchet pawl (an internal, spring loaded lever) that would normally engage gear teeth in one direction and click over them in the other direction. This is just like the action of a ratchet wrench. You might have a broken spring or broken pawl - in which case you will have to replace the freewheel---- Or it might just be dirty. Spray some WD 40 inside it (spray through the small gap between the round part that moves and the round part that doesn't. If that doesn't work, you'll have to replace it.