428 Chain upgrade kit for the MSX 125 / 125 Monkey !!
Will fit all years 2013-2019Standard Gearing 15/34 with a 106 Link Chain
(Chains we supply are longer to cater for gearing changes and extended swingarms ect so will require shortening, We can do this for you if needed) 14T Front is a great mod on a standard MSX/125 Monkey
15T Front 143cc
16T Front 181cc
428 Chain & Sprocket Kit MSX / 125 Monkey