Putoline HPX R 4W Fork Oil – 1ltr is an advanced synthetic motorcycle suspension fluid developed for highly responsive and precise fork performance. Its lightweight 4W viscosity supports quick suspension movement and consistent damping in demanding road, racing, enduro and off-road conditions.
The refined synthetic base oils and advanced additive system help protect internal fork components against corrosion, oxidation, seal leakage and foaming. By maintaining stable fluid performance, HPX R 4W helps the front suspension respond predictably during braking, cornering and riding across uneven surfaces.
This high-performance motorcycle fork oil is especially suitable for compatible Grand Prix, cross, enduro, trail, road and off-road motorcycles. Always confirm the required viscosity and oil quantity in the motorcycle or suspension manufacturer’s service manual before use.
Key Features
- Advanced synthetic motorcycle fork oil
- Lightweight 4W viscosity grade
- Developed for Grand Prix-level performance
- Supports fast and precise fork response
- Helps maintain consistent suspension damping
- Protects against corrosion and oxidation
- Helps prevent oil foaming under demanding use
- Supports fork-seal protection
- Suitable for road and off-road motorcycles
- Suitable for cross, enduro and trail applications
- Stable performance across changing temperatures
- Convenient 1-litre bottle
Benefits
- Supports responsive compression and rebound movement
- Helps improve front-end feedback and suspension control
- Maintains consistent damping during demanding riding
- Reduces performance changes caused by oil foaming
- Protects internal suspension parts against corrosion
- Helps reduce oxidation and premature fluid deterioration
- Supports the life and performance of compatible fork seals
- Provides dependable operation during road and off-road use
- Suitable for riders seeking lighter suspension damping
- Helps restore suspension performance when replacing old fork oil
Applications
Putoline HPX R 4W Fork Oil can be used in compatible:
- Grand Prix motorcycles
- Racing and track motorcycles
- Cross and motocross motorcycles
- Enduro motorcycles
- Trail motorcycles
- Road motorcycles
- Off-road motorcycles
- Conventional telescopic forks
- Upside-down fork systems
- Cartridge suspension systems requiring compatible 4W fluid
Fork-oil viscosity labels are not fully standardised between brands. Compare the viscosity data and follow the suspension manufacturer’s recommendation before replacing a different fork-oil product.
Technical Specifications
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Brand: Putoline
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Product Name: HPX R 4W
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Product Type: Advanced synthetic fork oil
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Viscosity Grade: 4W
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Pack Size: 1 litre
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Product Code/SKU: 74167
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Density at 15°C: 0.851 kg/L
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Viscosity at 20°C: 30.70 mm²/s
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Viscosity at 40°C: 16.50 mm²/s
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Viscosity at 100°C: 4.27 mm²/s
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Viscosity Index: 178
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Flash Point COC: 176°C
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Pour Point: -42°C
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Primary Functions: Damping, lubrication and suspension protection
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Suitable Use: Road, racing, cross, enduro, trail and off-road forks
The current Putoline product-information sheet lists these technical values and identifies product code 74167 as the 1-litre bottle. Baycity Power Parts currently lists the same product and SKU, although some technical values shown on the store page differ from the newer product sheet.
Why Choose Putoline?
Putoline specialises in lubricants and maintenance products developed exclusively for motorcycles and motorised two-wheelers. Its suspension fluids are designed to provide predictable damping, internal lubrication and protection under the pressure and temperature changes experienced inside motorcycle forks.
HPX R 4W is formulated as a high-tech fork oil for Grand Prix-level applications. Its synthetic formulation, high viscosity index and anti-foam properties make it a strong option for riders seeking quick suspension response and consistent front-fork performance.
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