Motul Twin Gear 75W-90 100% Synthetic Ester Motorcycle Transmission Oil 1L

Motul Twin Gear 75W-90 is a 100% synthetic ester-based high-performance motorcycle transmission oil engineered for gearboxes operating under extreme heat, heavy torque, and severe shock loads.

It is specifically suited for compatible Big Twin 4-speed, 5-speed, and 6-speed transmissions, including Harley-Davidson motorcycles and similar V-Twin applications requiring a 75W-90 API GL-5 gear lubricant.

The advanced Ester Technology formulation provides exceptional oil-film strength, high-temperature protection, reduced friction, smoother shifting, and extended protection for heavily loaded transmission components.

This package includes one 1-liter bottle.

WHY THIS GEAR OIL:

100% synthetic Ester Technology provides excellent resistance to extreme temperatures and heavy mechanical loads.

High-performance extreme-pressure protection helps protect gear teeth and other heavily loaded components against wear.

Molecular polar bonding technology helps the lubricant adhere to metal surfaces, creating a durable protective film.

A low traction coefficient helps reduce internal friction, wear, and power loss within the transmission.

The formulation helps promote smoother and quieter shifting, while maintaining strong oil-film protection at elevated temperatures.

Excellent low-temperature fluidity supports easier shifting when the gearbox is cold.

Provides anti-corrosion and anti-foam protection for demanding motorcycle transmission applications.

Compatible with seals and yellow metals commonly used in gearbox construction.

BEST FOR:

Harley-Davidson motorcycles

Big Twin motorcycles

V-Twin motorcycle transmissions

4-speed motorcycle gearboxes

5-speed motorcycle gearboxes

6-speed motorcycle gearboxes

Helical-cut gears

Straight-cut gears

High-torque motorcycle transmissions

Applications requiring SAE 75W-90

Applications requiring API GL-5

Applications requiring SAE J2360

KEY SPECIFICATIONS:

VISCOSITY GRADE: SAE 75W-90

STANDARDS: API GL-5, SAE J2360

LUBRICANT TYPE: 100% Synthetic Ester Transmission Oil

TECHNOLOGY: Ester Technology / Extreme-Pressure Formulation

APPLICATION: Motorcycle Transmission / Gearbox

GEAR COMPATIBILITY: Helical and Straight-Cut Gears

COLOR: Amber

TYPICAL PROPERTIES: Density at 20°C: 0.867, Kinematic Viscosity at 40°C: 98.4 mm²/s, Kinematic Viscosity at 100°C: 15.0 mm²/s, Viscosity Index: 160, Pour Point: -42°C / -44°F, Flash Point: 206°C / 403°F

PERFORMANCE FEATURES: Extreme-pressure protection, high-temperature oil-film strength, reduced friction, anti-wear protection, smoother shifting, reduced transmission noise, low-temperature fluidity, anti-corrosion protection, and anti-foam performance

BOTTLE SIZE: 1 Liter / Approximately 1.06 US Quarts

PACKAGE QUANTITY: 1 Bottle

TOTAL VOLUME: 1 Liter

FITMENT AND COMPATIBILITY NOTE:

Motul Twin Gear 75W-90 is designed for compatible Big Twin, Harley-Davidson, and similar V-Twin motorcycle transmissions requiring an SAE 75W-90 gear lubricant meeting API GL-5 or SAE J2360.

It is suitable for compatible 4-speed, 5-speed, and 6-speed transmissions using helical or straight-cut gears.

Do not assume compatibility with every Harley-Davidson or motorcycle transmission. Always verify the required viscosity, API specification, transmission design, and fluid capacity before use.

This product is a dedicated transmission gear oil and should not automatically be substituted for engine oil, primary-chaincase lubricant, or another drivetrain fluid unless specifically permitted by the motorcycle manufacturer.

IMPORTANT NOTES:

Drain intervals should follow the motorcycle manufacturer's recommendations and individual operating conditions.

Severe use, high temperatures, heavy loads, or aggressive riding may require shorter service intervals.

The lubricant can be mixed with compatible synthetic or mineral lubricants, although a complete drain and refill is preferred when changing products.

Always verify the current motorcycle service manual before installation.

WHAT YOU RECEIVE:

1 x Motul Twin Gear 75W-90 100% Synthetic Ester Motorcycle Transmission Oil, 1 Liter Bottle

Total Quantity: 1 Liter