Let's Make Robots!

help with wheel/motor

Hello everyone! I have a motor but I don't know what type of wheel I need for it.

This is the type of motor I am using:

http://www.radioshack.com/product/index.jsp?productId=2911245&cp=&sr=1&origkw=9v+motor&kw=9v+motor&parentPage=search

 I want to put a big wheel on it (not too big) so if anyone can help me find one that fits....it would be great!

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Won't work, dude. You need some gearing. Look through the forums, others have had this problem.

here you can find a little article on why you need a geared motor:

 

http://letsmakerobots.com/node/763 

ahh makes sense now....thanks for the help guys!