1. Pistons, Rings & Piston Kits Products
  2. sku: 4772506206148533
  3. KB PERFORMANCE MN/RG14

KB PERFORMANCE MN-RG14 Cast Piston Set Rider Sport Ty MN/RG14 For

fits model: Fxrs. make: Harley, Davidson. year: 1990–1993.

Rg14 Kb Performance Mn/rg14 Cast Piston Set For 1990-1993 Harley Davidson Fxrs-conv Low Rider Sport Ty

( Brand: Kb Performance ), ( Manufacturer Part Number: MN/RG14 ), ( Type: Cast Piston Sets ), ( Compatible Year: 1993 1992 1991 1990 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Fxrs-conv Low Rider Sport Convertible ), ( Bundle Description: 1 Pc Genuine Kb Cast Piston Sets ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review KB PERFORMANCE Mn/rg14 Cast Piston Set For Harley Davidson Fxrs conv Low Rider Sport Ty fits FXRS 1990–1993

Introducing the KB Performance MN/RG14 Cast Piston Set, specifically designed for Harley-Davidson FXRS-D Synergy Series model motorcycles manufactured between 1990 and 1993. This high-performance piston set is an excellent upgrade for riders seeking enhanced power and durability for their Sportster motorcycle.

The KB Performance MN/RG14 Cast Pistons are meticulously crafted using premium-grade aluminum alloy. This material ensures superior strength and heat resistance, capable of withstanding the rigors of high-performance riding. Each piston undergoes a rigorous manufacturing process, including precision machining and meticulous quality inspections, to guarantee a perfect fit and finish.

These pistons feature a unique design, with a dome shape that increases compression ratio for improved power output. The piston skirt is optimized for a snug fit within the cylinder bore, minimizing friction and reducing the potential for engine blowby. The piston rings are also included in the set, ensuring a proper seal between the piston and the cylinder wall for optimal engine efficiency.

The KB Performance MN/RG14 Cast Piston Set is an ideal upgrade for riders who demand more from their Harley-Davidson Sportster. This piston set not only delivers increased power and torque but also enhances the performance and reliability of your engine. By upgrading to these high-performance pistons, you'll experience a more responsive and exciting riding experience.

Installation of the KB Performance MN/RG14 Cast Piston Set is straightforward, with no need for engine rebuilding or major modifications. The pistons come with detailed instructions and are backed by KB Performance's commitment to customer satisfaction. Upgrade your Harley-Davidson FXRS-D Synergy Series motorcycle today with the KB Performance MN/RG14 Cast Piston Set and unlock the full potential of your Sportster engine.

Pros and Cons of Installing a KB Performance MN/RG14 Cast Piston Set on a 1990-1993 Harley-Davidson FXRS-D/I Sportster

The KB Performance MN/RG14 cast piston set is a popular upgrade among Harley-Davidson Sportster riders. This piston set is known for improving engine performance and power output. In this analysis, we will discuss the main pros and cons of installing this piston set on a 1990-1993 Harley-Davidson FXRS-D/I Sportster.

Pros:

1. Enhanced Performance: The KB Performance MN/RG14 cast piston set provides an increase in horsepower and torque, making the engine more responsive and powerful. This is due to the improved piston design and materials used.

2. Durability: The cast pistons are stronger and more durable than the stock pistons. They are less prone to failure under high RPM and power situations, ensuring a longer engine life.

3. Improved Compression: The piston set offers a higher compression ratio. This leads to better fuel efficiency and overall engine performance.

4. Customization: Upgrading to the KB Performance MN/RG14 piston set allows riders to personalize their Sportster engine and increase its capabilities.

5. Better Thermal Management: The pistons have a redesigned top ring groove that allows for better cooling, reducing the risk of engine overheating and subsequent damage.

Cons:

1. Cost: The KB Performance MN/RG14 cast piston set is a pricier upgrade than stock pistons. The cost may be a deterrent for some riders.

2. Installation Complexity: Installing the piston set is not a straightforward process. It requires specialized tools and knowledge, making it a more involved and time-consuming upgrade.

3. Potential Engine Noise: The increased power output and performance may result in more engine noise, which some riders may find bothersome.

4. Fuel Consumption: With the increased power and performance comes a potential increase in fuel consumption. Riders should be prepared to adjust their fueling accordingly.

5. Potential Compatibility Issues: There may be some compatibility issues with other engine modifications, such as camshafts or carburetors. It is essential to ensure that all components are compatible before installation.

Conclusion:

The KB Performance MN/RG14 cast piston set offers several advantages for riders looking to enhance their 1990-1993 Harley-Davidson FXRS-D/I Sportster's engine performance. These advantages include improved power, durability, and customization. However, there are potential drawbacks, such as cost, installation complexity, and potential compatibility issues. Ultimately, the decision to install the KB Performance MN/RG14 piston set depends on each rider's individual preferences, budget, and goals.

Recommendation:

If you are a serious Sportster enthusiast looking for significant performance gains and a customized engine, the KB Performance MN/RG14 cast piston set is an excellent investment. However, if you're on a tight budget or prefer a more straightforward upgrade, it may be worth considering other performance modifications or waiting for a more affordable piston set. Always remember to consult with a professional mechanic or engineer for expert advice before making any significant engine modifications.

Details:

Cast Piston Kit 80ci. Domed - .040in. Oversize to 3.538in. KB Cast Piston Set for 1990 - 1993 Harley Davidson FXRS-Conv Low Rider Sport ty: Status: In Stock.

part #: mnrg14 prices

  • $231.63-$298.22

specifications pistondon:

  • for models: Fxrs
  • for makes: Harley, Davidson
  • for years: 1990-1993
  • brand: Kb Performance
  • mpn: Mn/rg14
  • type: Cast Piston Sets
  • compatible year: 1993 1992 1991 1990
  • compatible make: Harley Davidson
  • compatible model: Fxrs-conv Low Rider Sport Convertible
  • bundle description: 1 Pc Genuine Kb Cast Piston Sets
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement

general pistondon:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits

seller pistondon:

  • city: Multiple warehouses
  • # reviews: 7493
  • rating: 97.7%

returns pistondon:

  • paid by: Buyer
  • time: 30 Days
  • policy: Returns Accepted

shipping pistondon:

  • transit: 4-8 Days
  • cost: $0.00
  • type: Fixed
  • class: Standard
  • service: Standard

offer pistondon:

  • started: March 2, 2025
  • quantity: 1
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0

payments pistondon:

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  • other
for models: fxrs, for makes: harley, davidson, for years: 1990-1993, type: cast piston sets, compatible year: 1993 1992 1991 1990, compatible make: harley davidson, compatible model: fxrs-conv low rider sport convertible, bundle description: 1 pc genuine kb cast piston sets, core charge: free no core charge, fitment type: direct replacement,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 4772506206148533,

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