has anyone ever used one of these? as it runs 1(one) compression ring only
my other concerns are the pistons seem slightly heavier than standard Zed and Pops Yoshi pistons I have- maybe about 25grams heavier also would gaskets still be OK after all these years - cannot find date on box/packing
pistons stamped-- 69.25 with arrow
ring box stamped-- HA 69.25 STD
gasket set box stamped--Z1 1100cc BBK-007
any info as usually greatly acepted Hench

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