I'm pretty set on just replacing the cranks. I've read a lot of complaints so I was just considering getting something a little better. I'd narrowed my search to two cranksets but I'm not sure if there is some other carnksets I can buy that are compatible with the bottom bracket I have now. I tried to find out what kind of bottom bracket my bike uses but I couldn't find anything. I was considering getting this:
https://www.jensonusa.com/store/prod...sis+Bb+Oe.aspx

or:

http://bikeisland.com/cgi-bin/BKTK_S...ls&ProdID=1417

Only because I know I wouldn't have a problem matching the bottom bracket. But if someone knows what kind of bottom bracket I've got (the spindle count and compatibility), please clarify this for me.

Thanks.