Headstock Bearings: KTM EXC-R530 EXC-R 530 (2008) Yamaha XTZ660 To replace OEM: 30510-KT0-405 /

To replace OEM: 30510-KT0-405 / 30510-402-720

To replace either 21121-1027 or 21121-1028

This headstock bearing set are taper roller style bearings that have been manufactured to replace the original steering bearings on a Yamaha XT250 Serow XV to XX models

Honda CB 900 F2 (DOHC) (1981)

Seals not included in the measurements

Headstock Bearings: KTM EXC-R530 EXC-R 530 (2008) Yamaha XTZ660 To replace OEM: 30510-KT0-405 /Brand new set of headstock steering bearings to fit: KTM EXC R 530 (2008). This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a KTM EXC R530 for the years and models shown above. Top sized: 29mm x 50. 25mm x 15mm. Bottom sized: 29mm x 50. 25mm x 15mm. All sizes set out ID x OD x Thickness. If you require different sizes please click here to see our full list of sizes.