How are the 9-tooth back rims on a mongoose

SOURCE: Mongoose 20 IN Boys El Rey Bike

any local bike store...or ebay.

SOURCE: the back rim on my 20

What do you mean by "skips a rotation"? From your description about it wobbling on the axle itself, it is very likely you have a broken rear axle. If you loosen the axle nuts you will be able to tell if the axle is still in one piece. When you loosen the axle nuts be careful because if the axle is broken it may fall out along with some ball bearings.

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.

SOURCE: Bought a 26" Mongoose Detour

For the gear problem.Find the shifter.Use a pair of pliers and loosen the nut where the cable is passing through the shifter.Now withe the pliers pull the cable tight.Very tight.Spray the shifter with WD-40.That should fix it.


For the front rim,tighten all the spokes.Pliers will work,but a spoke too; will make the job faster.