Formulated to meet the needs of both air and water-cooled 4-stroke engines, Pro 4 10W-40 XP is the recommended SAE grade for the majority of motorcycle manufacturers."
"152863
Formulated to meet the needs of both air and water-cooled 4-stroke engines, Comp 4 15W-50 XP is ideal for larger capacity engines, especially in hot conditions."
"152856
Formulated to meet the needs of both air and water-cooled 4-stroke engines, Pro 4 10W-60 XP is recommended for larger capacity engines, hot conditions and in engines where excessive fuel dilution is encountered."...
Power & performance in competitionUsed for 24 hours in the Endurance World ChampionshipDeveloped with the Red Bull MotoGP Rookies CupWear of parts reduction and engine protection"
"464759
Castrol Power 1 Racing 4T 10W-50 is designed for high performance sports bikes to deliver optimum power and protection in all conditions where API SN or JASO MA-2 are recommended."
"35118