Bel Ray Thumper Racing Synthetic Ester Blend 4T Motor Oil is a 4-stroke motorcycle racing oil that combines the finest quality synthetic esters and highly-refined mineral base oils specifically engineered for today’s 4-stroke single cylinder

- 1100 - 1300 lb

Straps on to dirt bikes and dual sport motorcycles

- Maximum lifting weight is 150kg

It has a powerful timing system and unique function design

Bel Ray - Si-7 Synthetic 2T Engine Oil Enduro Tyres Bel Ray Thumper Racing SyntheticBel Ray Si 7 Full Synthetic 2T Engine Oil is a 2 stroke motorcycle oil specifically formulated for use in injector autolube systems, but can be used as pre mix. Formulated to reduce smoke and carbon residue while providing the highest level of protection for all 2 stroke engines. Bel Ray Si 7 meets the JASO FD and ISO L EGD ratings ensuring the highest level of detergency for better performing, longer running engines.