Re: one thing after another
Is your rear wheel coaster brake, or derrailer and gears?
If you already have gears changing the axle isn't very difficult.
I've replaced mine 2 or 3 times already.
You can get a chromoly axle for about 6 bucks including shipping.
You need a "gear bike" to put a shift kit on it.
To answer your question "is the shift kit worth it?"
You won't believe how much fun your bike will be if you get one.
It feels like a whole different machine.
You can start without peddling, run through the gears and get an easy
8 mph higher top speed.
It's always gonna be something with these bikes but you will eventually iron out all the wrinkles.Don't give up just get more determined to succeed.