so, you go riding bikes wearing beer shirts? heres one that started based on a road sign:
![IPB Image](http://members.optusnet.com.au/gasclown/beerbike.jpg)
good logos are scalable, balanced and get the point across. should look good in two colours and be able to be fancied up for mediums other than printing. i had actually thought about doing three road signs (one with the beer can top^, the next with a shirt on and the last with a few bicycles inside ie: beer, shirt, riders...) and then the text but it really was a bit busy for a logo. maybe otherwise you could use a simple bike drawing and the can top for the wheels...