Complete Piston Kit to rebuild the top end of a Honda 100. This is a standard bore piston kit or you can choose the optional 1st over kit. Either kit comes complete with rings set, piston pin, circlips and a piston. Very few 1st over kits are still available. If you choose the 1st over option from the bore size options you will receive the larger size piston kit. This kit will not fit the 1976-1978 XL100.
Have your cylinder measured by a professional! This is not a big bore kit. To install this you will likely require a bore and hone of your cylinder.
1970-1973 CL100 | CL100S