Bike does not move when pedaling.

[dinhy34]

Hello! i would like to ask if my bike is repairable. I was going up hill when all of a sudden my bike no longer moves when i pedal. i had to walk the rest of the way. When i pedal the bike i think it called crank arm seems to slip and the chain ring does not move. when i get off the bike and pedal by hand it moves tho.

[Bill]

What kind of bike do you have?

[trevgbb]

sounds like the joint between the crank arm and the chain ring assembly has failed, on cheaper bikes, this is just a very basic peened over spline.
If this is a newish bike, it should be replaced under warranty.
If not, this is a job for your LBS as it can be difficult for the amatuer to get the right parts as not all chainsets are the same.

[dinhy34]

My dad gave it to as a replacement for my old bike. The brand is Vortex and it's a mountain bike. I might just get a new bike if i can't fix it myself.

[Bill]

As Trev said it sounds like a tough job but as a person who doesn't like to give is there any way to post a picture?

[dinhy34]

only camera i got is my crappy phone's camera which is 3.2 mp. i can try to post a pic and a video if needed. i was thinking on fixies how much can they support? im a pretty big person so i am wondering if it even supports me lol.