Welcome to the IRD online store. This is the place to go if you cannot find our components in a local bicycle shop or online retailer. IRD prides itself with providing well-designed high-performance parts at reasonable prices. Yokozuna Reaction Housing in stock! More product information is available on our main site www.interlocracing.com CAMPY 11 Cassettes now available in 12-30 and 11-30 New Thumb Shifters!