Stock / Big Bore Piston & Cylinder Kits
Stock / Big Bore Piston & Cylinder Kits - DHM 125cc Piston Kit Only is backordered and will ship as soon as it is back in stock.
Description
Description
A high compression piston kit or big bore is one of the best upgrades to your build. With the stock compression coming in at 9.3:1, it offers dull throttle response and limits power in the higher rpm range.