semi synthetic engine oil
JASO MA API SL SAE 15W-50
Guardian Sigma is designed specifically to meet the exacting retirements of high performance motorcycles. It was developed after tests with Triumph Motorcycles to protect engines with an integrated gearbox, allowing wet clutches to operate, even under the most severe conditions. The benefits of using Sigma include; superb film strength, anti-wear capabilities, shear stability, maximum engine and gearbox protection.