Bel-Ray Big Twin 85W-140 Transmission Oil 1L

Belray Big Twin Transmission Oil is a multigrade 85W-140 gear oil specially designed for the transmissions and drivetrains of motorcycles equipped with V-Twin engines.

It is developed for demanding conditions and ensures smooth shifting, excellent wear protection, and reduced transmission wear.

Features & Benefits

• Multigrade oil: 85W-140 – suitable for a wide temperature range
• API GL-5 rating and Belray’s high quality standard
• Special extreme pressure additives reduce metal-to-metal friction and wear
• Smoother gear shifting and reduced gear noise
• Excellent viscosity stability – maintains performance even under heavy load and temperature variations
• Distinctive red color makes leak detection easier

Applications

Designed for separate transmissions in large-displacement V-Twin motorcycles (e.g., Harley-Davidson) with 4, 5, or 6 speeds.

Suitable for transmissions, final drives, shafts, and bevel gears.

Technical Data

• SAE 85W-140
• Volume 1 liter
• API GL-5
• Mineral oil based