RED LINE SKU: 57-6551

Red Line Suspension Fluid 2.5 Weight 16 oz - Harley & Indian V-Twin

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$16.79
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About Red Line

Red Line parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every Red Line item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.

Red Line 2.5 Weight Suspension Fluid is a synthetic lubricant specifically engineered for the shocks and dampeners of V-twin motorcycles. Its advanced formulation provides superior shear stability and incorporates anti-wear additives, working together to reduce shock fade, lower operating temperatures, and extend the overall lifespan of your suspension components compared to conventional suspension oils.

Why riders pick this

  • Superior shear stability reduces shock fade
  • Allows use of lower viscosities for performance
  • Excellent seal lubricity and anti-foaming
  • Anti-wear additives extend shock service life
  • Mixable for custom viscosities and tuning

Achieving optimal handling and ride comfort on your Harley-Davidson or Indian Motorcycle depends heavily on the quality of your suspension fluid. This Red Line 2.5 Weight fluid ensures consistent damping performance even under aggressive riding conditions, preventing the dreaded shock fade that can compromise control. By maintaining excellent seal lubricity and resisting foaming, it delivers a predictable and smooth response from your forks and shocks.

Precision Damping for V-Twins

  • Superior shear stability significantly reduces shock fade
  • Allows the use of lower viscosities for enhanced performance
  • Excellent seal lubricity and anti-foaming properties
  • Anti-wear additives extend the service life of shock components
  • Mixable with other Red Line suspension fluids for custom tuning

Tailoring Your Suspension

One of the key advantages of Red Line Suspension Fluid is its versatility. Riders can mix this 2.5 Weight fluid with other Red Line viscosities to create a custom blend, allowing for precise tuning of their Harley-Davidson or Indian Motorcycle's suspension. This means you can dial in the exact damping characteristics needed to match your riding style, weight, and the demands of your chosen terrain, leading to a truly personalized and confidence-inspiring ride.

Specifications

  • Brand: Red Line
  • Manufacturer Part #: 91112
  • UPC: 083522911122
  • Size: 16 oz
  • Package: 12 per case (sold individually)
  • Weight: 0.97 lbs
  • Dimensions: 2.65 in L x 2.65 in W x 9.4 in H

Common questions

Can I mix this 2.5 Weight fluid with other Red Line suspension fluids?

Yes, Red Line suspension fluids are specifically formulated to be mixable. This allows you to create custom viscosities, helping you dial in the exact damping characteristics your motorcycle needs.

Will this suspension fluid help reduce shock fade on my V-twin?

Absolutely. Red Line's superior shear stability and advanced formulation are designed to significantly reduce shock fade and lower operating temperatures, ensuring more consistent damping performance.

Is this product suitable for both forks and rear shocks?

Yes, Red Line suspension fluid is engineered for use in both conventional fork dampeners and rear shocks on V-twin motorcycles, including Harley-Davidson and Indian Motorcycle models.

Ordering from Vtwinbikers

  • Brand new, sourced through authorized US distribution — never used, never grey-market.
  • Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
  • Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
BRANDRed Line
TYPEChemicals
SKU57-6551
WEIGHT0.97 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
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