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.
1L Silkolene 10w40 PRO 4 Motorcycle Fully Synthetic Oil, for most 4-stroke engines, comes as 1 litre (if your bike requires more than 1L please order more than 1 product)