Headstock Bearings: Yamaha RD400 RD 400 (1976-1979) - Cup and Cone Style Kawasaki GPZ600 To replace OEM: 30510-KTY-D31 /

To replace OEM: 30510-KTY-D31 / 30510-K98-E01

Yamaha YN 100 Neo's (1999-2003)

It has 330mm pin/pin mounting points

Cylinder / Barrel / Jug

To replace Magneti Marelli CDI units stamped ACI600 / ACI601 / ACI602 / ACI603 / ACI604 units or EFI Technology units stamped AC2i / AC3i / AC5i / AC8i

Headstock Bearings: Yamaha RD400 RD 400 (1976-1979) - Cup and Cone Style Kawasaki GPZ600 To replace OEM: 30510-KTY-D31 /Brand new headstock steering bearing set to fit: Yamaha RD 400 (1976 1979). This set of steering stem bearings are cup and cone style bearings. They have been manufactured to replace the original set of head stock bearings on an RD400 for the years and models shown above. Both top and bottom headstock bearings are included. FREE UK DELIVERY! Worldwide delivery available.