Track bikes in Japanese Hip-Hop video

I found this music video of the Japanese hip-hop group Rip Slyme. The set-up is that group members are working in a bike shop. My Nihon-go isn’t good enough to understand what they are talking about, at least not on the first listen. And I’m not sure how many more times I can endure to listen. BUT music aside, almost all the props in the video are actually quality keirin components and featured prominently enough that I can identify the model. And really, it’s a welcome break from seeing every wannabe American popstar posing in an Escalade while lip-synching to some cheesewhiz manufactured song. http://www.youtube.com/watch?v=86iUu-9qfIo