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Bel-Ray Thumper Racing 4T 10W-40 is a fully synthetic ester-based motorcycle oil formulated for high-performance 4-stroke engines. It provides superior wear protection, smooth clutch engagement, and consistent engine performance under extreme riding conditions.

For the best and fastest service, please give us a call so we can assist you using your vehicle’s VIN (chassis number).
  • Κωδικός: 99520-B4LW
  • Availability: Available
53.07€

Bel-Ray Thumper Racing 4T 10W-40 4L – 100% Synthetic Ester Blend Motorcycle Oil

Bel-Ray Thumper Racing 4T 10W-40 is a premium fully synthetic ester blend oil developed for high-performance 4-stroke motorcycles. Designed specifically for single-cylinder and racing engines, it delivers exceptional protection, smooth clutch performance, and reliable power delivery in extreme riding conditions.


Key Features:

• 100% synthetic ester-based formula for superior lubrication
• Maximized wear protection for valve trains, pistons, and cylinders
• Smooth and consistent wet clutch performance – JASO MA2 certified
• Excellent thermal stability for both on-road and off-road conditions
• Meets or exceeds API SN and JASO MA2 specifications
• Ideal for racing, motocross, and aggressive street use
• 4L packaging – suitable for a wide range of 4T motorcycles


Perfect for riders demanding high durability and top-tier performance from their engine oil.
  • Application4T Engine Oil
  • SpecificationsJASO MA2, API SN
  • TypeSynthetic
  • Viscous10W-40
  • Pack Size4 lt