I'm a hard-core BMX builder, and I shop second-hand shops for great deals (e.g., a set of 80's Redline Flights for $1.50). So, I got a shed full of parts. One day, I noticed that any rims older than the 90's were welded! I told my dad and he was shocked to hear that rims are now pinned. He says that all rims used to be welded; so I don't mind all those rusty old rims in my shed. Plus, they hold up well, too!