From one of the 29 original Yellowbirds Dated: 1989 Sizes: 8×17 ET: 30.4 and 9×17 ET: 17.7 KBA numbers: 41310 and 40994 Manufacturer: Speedline Very good condition with slight signs of storage. Almost without any wear and tear. This set was used as a replacement set. Exceptionally rare. The value of an original Yellowbird is ...