Headstock Bearings: Kawasaki KZ650 KZ 650 (1978-1980) Triumph Thunderbird 1600 Honda CB 550 F Super

Honda CB 550 F Super Sport Four (1976-1977)

ACI603 & ACI604 or if you have an EFI Technology unit it will replace the following CDI stamped units AC2i

To replace OEM: 30500-ML7-003

Brand new set of headstock / steering bearing to fit:

If you're having spark issues with your Z 400 then it's a no brainer to get some upgraded coils on your bike

Headstock Bearings: Kawasaki KZ650 KZ 650 (1978-1980) Triumph Thunderbird 1600 Honda CB 550 F SuperBrand new set of headstock steering bearings to fit: Kawasaki KZ 650 D (SR650) (1978 1980). This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a Kawasaki KZ650 for the years and models shown above. Top sized: 30mm x 48mm x 14mm. Bottom sized: 30mm x 52mm x 16mm. All sizes set out ID x OD x Thickness. If you require different sizes please click here to see our full list