So Ive had my road bike for about 3 weeks now ('06 Scott Speedster S30, purchased used from original owner's daughter (original owner deceased; not bike-related)) figured it was time to figure out how to change a tire. Read this about removing tires without levers: http://www.teamestrogen.com/content/asa_levers
tried it; it worked. Figured I'd give the rim a look since i bought the bike used. rim tape looked good, everything else looked good, until i saw this:
other side of rim:
It looks like a small crack. it's not really visible on the exterior, can only really see it on the inside of the rim with the tires off like this. Is this a huge problem? A tiny problem? Am I risking catastrophic failure? The rims are Alex R500s.
Thanks fellow Clydes