headstock bearings kawasaki z1100 z 1100 1981 1984 Yamaha TZR50 The forks are roughly 650mm

The forks are roughly 650mm so please check the length of your originals as they can vary from different models and different countries

If you're having spark issues with your YFM450 then it's a no brainer to get a new upgraded coil on the quad as you'll get the spark you're after

This ignition coil replaces OEM 21121-S006 on a Kawasaki KFX400 for the years shown above

Top bearing sized ID25 x OD47 x WTH15 and bottom bearing sized ID30x OD55 x WTH17

headstock bearings kawasaki z1100 z 1100 1981 1984 Yamaha TZR50 The forks are roughly 650mmBrand new set of Headstock Steering Taper Roller Bearings to fit: Kawasaki (K) Z 1100 A1 A3 (Shaft Drive) (1981 1983). Kawasaki (K) Z 1100 B1 B2 GPZ (1981 1982). Kawasaki (K) Z 1100 D1 D2 Spectre (1982 1983). Kawasaki (K) Z 1100 R1 (1984). This set of steering bearings are taper roller style and have been designed to replace the original set of head stock bearings on a Kawasaki Z1100 KZ1100 for the above years and models. Top bearing sized ID25 x OD47