I know how you guys like crazy parts. I bought one of these, last week. It's a nice addition. Shifts are that much more precise. Be careful if you order one as webike has two different models. I bought both, but you want this Aella brand , with the moveable bearing. Its listed for the z900rs, but we use the same case, so it fits. This piece is well machined, and fits perfectly. I had to wait a whole 2 days shipping from Japan to Salt Lake City, Ut.