99550-B1LW Bel-Ray Thumper Synthetic Ester 4T Engine Oil 10W-50 1L
99550-B1LW Bel-Ray Thumper Synthetic Ester 4T Engine Oil 10W-50 1L
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99550-B1LW Bel-Ray Thumper Synthetic Ester 4T Engine Oil 10W-50 1L
Experience the pinnacle of performance with Bel-Ray Thumper Synthetic Ester 4T Engine Oil. Specifically engineered for single-cylinder off-road motorcycles and ATVs, this top-tier engine oil delivers unmatched power and protection on every ride.
Key Features:
- Synthetic Ester Formula: Designed to provide the ultimate Thumper experience, ensuring peak performance and reliability.
- Maximum Horsepower: Unlock the full potential of your engine with superior lubrication that enhances horsepower.
- Consistent Clutch Performance: Keep your clutch operating smoothly under all conditions, allowing for seamless gear changes.
- Wear Protection: Formulated to safeguard critical engine components including valve-trains, rings, cylinders, and pistons against wear.
- API SN and JASO MA2 Registered: Meets the highest industry standards for quality and performance.
Upgrade your riding experience and trust your engine to Bel-Ray Thumper Synthetic Ester 4T Engine Oil. Whether you’re racing through rugged terrains or cruising on trails, this oil guarantees optimal performance and protection.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

