Honda TL125 TL 125 Piston Kit (1973-1976) 56.5mm standard Yamaha WR125 This set of head stock

This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering (cup and cone style) bearings on an XS1100 for the years and models shown above

Suzuki GSX 400 F (GSXR400 engine) (1988-1990)

21121-1181 & 21121-1234 on a Kawasaki KX125 for the years and models shown above

If you are having spark issues with your Suzuki RG500 then the ignition coils could be the culprit as they are now about 40 years old and would certainly would benefit with an upgrade for some new aftermarket coils

with a spark plug cap included

Honda TL125 TL 125 Piston Kit (1973-1976) 56.5mm standard Yamaha WR125 This set of head stockBrand New 56. 5mm piston kit to fit: Honda TL 125 1973 1976. Piston kit includes rings, circlips and gudgeon pin