Products

Sport Transmission Fluid
August 15, 2018
Thumper® Racing Synthetic Ester Blend 4T Engine Oil
August 15, 2018

Thumper® Racing Works Synthetic Ester 4T Engine Oil

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Bel-Ray Thumper Racing Works Synthetic Ester 4T Engine Oil is a 4-stroke synthetic motorcycle racing oil that has been developed for full works competition use and is designed to withstand extreme racing conditions. Full synthetic ester base oils withstand the highest temperatures and stresses and provide the ultimate performance for 4-stroke motorcycles. Meets API SN and JASO MA2 requirements. Suitable for air-cooled/liquid-cooled 4-stroke engines and wet clutches.

  • Synthetic ester formula for the ultimate Thumper performance
  • Withstands extreme racing conditions
  • For air-cooled/liquid-cooled 4T engines with wet clutches

Sizes & Viscosities

SAE 10W-50

Available SizesItem Number
1 Liter Bottle - 12/case301724150160
(99550-B1LW)
4 Liter Bottle - 4/case301724150185
(99550-B4LW)

SAE 10W-60

Available SizesItem Number
1 Liter Bottle - 12/case301725150160
(99551-B1LW)