4-Stroke Motorcycle Maintenance Kit – MOTOREX 10W60 The complete solution for 4-stroke dirt bike maintenance – of the highest quality from MOTOREX Switzerland. Maintaining performance, cleanliness and perfect protection – all in one affordable kit. The kit includes: CROSS POWER 10W60 engine oil – fully synthetic oil for maximum performance in harsh conditions Air filter cleaning fluid – for deep and thorough cleaning of the sponge filter Air filter oil spray – prevents the ingress of dust, mud and dirt Chain cleaning spray – effectively removes grease and dirt