Motul Transoil Expert 10W40 is a premium semi-synthetic gearbox lubricant developed for high-performance motorcycle transmissions and KZ shifter kart gearboxes with separate gearboxes and wet clutch systems.
Its advanced Technosynthese® ester-enhanced formula delivers outstanding gear protection, excellent shear stability, and smooth, precise clutch engagement under the most demanding racing conditions. Designed to withstand high temperatures and extreme gearbox loads, it maintains stable viscosity while minimizing wear on gears, bearings, and clutch components.
Compared to conventional mineral oils, Transoil Expert offers improved oxidation resistance, better film strength, and enhanced shifting consistency, making it an excellent choice for competition karting, motocross, road racing, enduro, and supermoto applications.
Features
• Genuine Motul lubricant
• Technosynthese® semi-synthetic formula
• SAE 10W40 viscosity
• Ester-enhanced technology for superior film strength
• Designed for separate gearboxes with wet clutches
• Smooth, positive gear changes
• Excellent clutch engagement and modulation
• Outstanding wear protection
• High shear stability
• Excellent thermal and oxidation resistance
• Race-proven performance
• Made by Motul
Specifications
• Brand: Motul
• Product: Transoil Expert
• Viscosity: SAE 10W40
• Type: Semi-Synthetic Gearbox Oil
• Technology: Technosynthese®
• Bottle Size: 1 Liter (33.8 fl oz)
• Manufacturer Part Number: 105895
Applications
Recommended for:
• KZ / Shifter kart gearboxes
• Motorcycle transmissions
• 2-stroke motorcycles with separate gearbox and wet clutch
• 4-stroke motorcycles with separate gearbox and wet clutch
• Motocross
• Enduro
• Supermoto
• Road racing motorcycles
Always follow your engine or gearbox manufacturer's lubricant recommendations.
