newbie question on rear axel

[jaynbri]

I was given a bike and had to replace the rear wheel tube, but now when I put it back on and tighten everything up. As soon as i pedal the chain will spin once and then pop off the rear gear. Don't really know whats wrong I've never worked on a bike before.

[FitRider 921]

The chain is either too long or just isn't tight enough. How old are you?

[jaynbri]

I'm 26...Iknow it's bad that a 26 year old doesn't know how to fix a bike....

[minichamp31]

I'm 26...Iknow it's bad that a 26 year old doesn't know how to fix a bike....

No, you just aren't familiar with bikes. You'll pick it up quickly. It's super easy to fix a lot of things on a BMX bike.

[FitRider 921]

I'm 26...Iknow it's bad that a 26 year old doesn't know how to fix a bike....
It wasn't that... it was your terminology, spelling, and grammar.

[jaynbri]

meaning I don't sound like a teenager, or that I'm not educated in bike lingo

[FitRider 921]

Mostly just the bike lingo, but you will learn.

[eightdip]

Is the chain tight when you put it on? If so, it'll be that your sprocket (front, larger cog) is bent