2 different versions of 124cc piston are offered for the Kitaco 124cc DOHC kits, and run specific ring sets. 52mm are all the same. - MM-4469 for the 54mm 2 ring 13.0:1 pistons (124cc DOHC piston upgrade, DLC coated)
- MM-4470 for the 54mm 3 ring 12.2:1 pistons (124cc DOHC kits)
- MM-4471 for the 52mm 3 ring 11.6:1 pistons (88cc DOHC kits)
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