In Stock Engine parts DIO50 big bore kit 127cc air cooled 55mm cylinder set 53.4mm forged crankshaft 222249 USD 850 Big bore kit 127cc for Honda DIO50 AF18. For installation this set is needed milling crankcase.Set including:1. Air cooled cylinder kit 55mm JISO (height 79.3mm, pin size 14mm);2. Forged crankshaft 53.4mm +4.4 long stroke JISO;3. Cylinder head;4. Set of crankshaft bearings, needle roller and oil seals. Add to cart