- New
Fully synthetic four-stroke oil for all motorcycle engines and gearboxes, including racing engines. Very low evaporation, contains special anti-slip additives for clutches and is also used in wet clutches and gearboxes of 2-stroke engines. Ultra 4 is used successfully in Ducat and KTM racing motorcycle engines. & Nbsp;
See the Shell Oils & nbsp; Compatibility Chart & nbsp; here & raquo;
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