Dimension:Inside diameter:22mm/0.86",59teeth,Clutch 85mm/88m/122mm(3.34"/3.46"/4.8"),bolt hole spacing:64mm/2.51". Replacement for Helix CN250 Elite CH250 PS250 Reflex NSS250. Replacement for Chinese 250 Touring Scooter suck as Roketa BMS Coolster(read description for fitment infos). The new oil tank design makes the oil passage smoother.Adopt all-copper sleeve design,better axial stability,high concentricity,more uniform stress on beads,not easy to fall apart.
