I'm an experienced road bike and commuter bike mechanic. I've worked in a few shops and have a good touch setting things up. But I have no BMX riding experience, no BMX shopping experience, and I don't know the little ins and outs of the bikes.
I'm working on a customer's bike now. It's a Diamondback Joker. He brought it in for a simple tube change, but I felt a LOT of play in the rear hub. After disassembling it, I found it uses a bunch of small 1/8" balls. The balls were shot, I mean chewed up, the cones and races were also shot.
My question is, why would they use such small balls in a BMX hub, a hub that's designed to get abused, jumped, jolted etc. Is this just something they put on cheap OEM wheels?
What are the standards for hub axles. I didn't have a pair of calipers, but this appeared to be between 13 and 14mm. Replacement wheels seemed to come in 14mm, so I assume this is one of the standards.
Does anyone know of a good website that is a good source for this type of information?