1. Antique, Vintage, Historic Motorcycle Parts For Sale
  2. sku: 20498783429802722
  3. HARLEY DAVIDSON 46108-73P

HARLEY DAVIDSON 46108-73P Aermacchi Set Nos Inner Front Fork X90 Springs

fits make: Harley. year: 1973.

46108-73p Harley Davidson Aermacchi 1973 X90 Set Of Nos Inner Front Fork Springs

( Brand: Harley Davidson ), ( Manufacturer Part Number: 46108-73P ), ( Part Type: Spring Fork ), ( Machine Type: Internal Front Fork Springs ), ( Color: Raw Steel ), ( Compatible Model: Aermacchi Harley Davidson 1973 X90 ), ( Material: Steel ), ( Vintage Part: Yes ), ( Placement On Vehicle: Left, Right, Front ), ( Manufacturer Warranty: Expired ), ( Country Of Origin: Italy )

Review HARLEY DAVIDSON Aermacchi X90 Set Of Nos Inner Front Fork Springs fits 1973

The **Harley-Davidson 46108-73P Aermacchi 1973 X90 Set NOS Inner Front Fork Springs** represents a rare and highly sought-after piece of motorcycle history, embodying the raw, unpolished essence of the iconic Italian-designed X90 series that Harley-Davidson briefly produced in the early 1970s. These original, never-overhauled (NOS) inner front fork springs are a direct link to the era when Harley-Davidson sought to merge the aggressive styling and performance of the Aermacchi MX500 and ALLEGRO motorcycles into their own lineup, creating a sportier, more nimble alternative to their traditional cruisers. The X90 was a bold experiment, blending Harley s American muscle with European agility, and these springs were a critical component of its handling providing the necessary suspension travel and responsiveness to navigate the sharp, twisty roads and racetracks where the bike excelled. Crafted from high-quality, heat-treated steel, these springs retain their original factory specifications, ensuring they deliver the precise 1.75-inch travel and firm yet compliant action that defined the X90 s dynamic ride quality. The fact that they are NOS completely untouched since their installation in 1973 makes them a treasure for collectors and enthusiasts who appreciate the authenticity of vintage machinery. Whether you re restoring a rare X90 to its original glory or seeking to preserve the integrity of a classic bike, these springs offer a tangible connection to a pivotal moment in Harley-Davidson s evolution, when the brand dared to innovate beyond its comfort zone. Their inclusion in a restoration project would not only enhance the bike s performance but also its historical significance, making it a standout piece in any collection of vintage motorcycles.

### **Pros and Cons of Buying a 1973 Harley-Davidson Aermacchi X90 NOS Inner Front Fork Spring Set (Part #46108-73P)**

#### **Pros:**

1. **Original Equipment Manufacturer (OEM) Quality** The Aermacchi X90 was a high-performance Italian bike, and its suspension components were designed for durability and performance. NOS (New Old Stock) parts are often well-preserved and free from modern wear, meaning they may retain better original specifications than aftermarket replacements.

2. **Authentic Fit and Function** Since this is a direct replacement part for the X90, it ensures an exact fit without modification. This is particularly valuable if you plan to restore or maintain the bike to its original condition.

3. **Potential for Improved Ride Quality** If the original springs are worn or damaged, replacing them with NOS parts could restore the bike s intended suspension characteristics, leading to a smoother, more controlled ride.

4. **Historical and Collectible Value** For enthusiasts who prioritize authenticity in vintage restoration, NOS parts are highly desirable. They contribute to the bike s historical integrity and may increase its resale value if kept in pristine condition.

5. **Rarity and Availability** NOS parts for older motorcycles are becoming increasingly scarce. Securing this set now could prevent future sourcing issues, especially if the X90 community continues to grow.

6. **Compatibility with Other X90 Components** Since the X90 was a unique bike (Harley-Davidson s Italian venture), finding compatible parts can be difficult. This NOS set ensures that the suspension remains consistent with the bike s original design.

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#### **Cons:**

1. **High Cost Relative to Aftermarket Alternatives** NOS parts are typically more expensive than modern or aftermarket replacements. For a restoration project, this could significantly impact the budget, especially if multiple NOS components are needed.

2. **Potential for Hidden Damage or Wear** Even if the springs appear NOS, there is always a risk of internal corrosion, fatigue, or improper storage over decades. Without professional inspection, you may unknowingly purchase compromised parts.

3. **Limited Availability and Lead Times** NOS parts are not mass-produced, and suppliers may have limited stock. If the seller is no longer active or the part becomes unavailable, you could be locked into a purchase with no future alternatives.

4. **Compatibility Concerns with Modified Bikes** If the X90 has been heavily modified (e.g., suspension upgrades, frame changes), the NOS springs may not integrate seamlessly. You may need additional work to ensure proper alignment and function.

5. **Maintenance and Longevity Uncertainty** While NOS parts are desirable, they are not immune to aging. The springs may still require eventual replacement, and their lifespan could be shorter than modern, high-quality aftermarket options designed with contemporary materials.

6. **Market Speculation Risk** Some NOS parts are artificially inflated in price due to collector demand. If you re not deeply invested in the bike s historical value, you might pay more than necessary for parts that serve a functional rather than sentimental purpose.

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### **Conclusion:**

Buying a NOS inner front fork spring set for a 1973 Harley-Davidson Aermacchi X90 is a **highly desirable choice for purists and restorers** who prioritize authenticity and historical accuracy. The benefits of OEM quality, exact fit, and rarity make it a compelling option if you re committed to preserving the bike s original character. However, the **higher cost, potential risks of hidden damage, and limited availability** mean it may not be the most practical or cost-effective solution for casual riders or those seeking modern performance upgrades.

If your primary goal is **restoration to original condition** and you have the budget to support it, the NOS parts are worth considering. If, however, you re focused on **performance, cost efficiency, or long-term reliability**, aftermarket alternatives (such as high-quality replica or upgraded suspension components) might be a more balanced choice.

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### **Recommendation:**

- **For Enthusiasts and Restorers:** Proceed with the purchase if you ve verified the part s authenticity (e.g., through a trusted dealer or inspection) and are prepared for the associated costs. Pair this with a thorough inspection of the rest of the suspension system to ensure no other components are compromised.

- **For Performance or Budget-Conscious Riders:** Explore aftermarket suspension options that offer similar performance at a lower cost. Brands like **Ohlins, KYB, or modern Italian suspension manufacturers** may provide comparable (or superior) solutions without the premium NOS price.

- **For Collectors:** If the bike is intended for display or future resale, the NOS parts will enhance its value, but weigh the long-term storage and maintenance costs of keeping it in pristine condition.

Ultimately, the decision depends on your priorities whether you value **historical integrity above all else** or **practicality and modern functionality**.

Details:

The original Harley Davidson part numbers is as follows: 46108-73P. These parts are for 1973 X90 model's ONLY.

part #: 4610873p price

  • $80.00

specifications cyclevintagee:

  • for makes: Harley
  • brand: Harley Davidson
  • mpn: 46108-73p
  • part type: Spring Fork
  • machine type: Internal Front Fork Springs
  • color: Raw Steel
  • compatible model: Aermacchi Harley Davidson 1973 X90
  • material: Steel
  • vintage part: Yes
  • placement on vehicle: Left, Right, Front
  • manufacturer warranty: Expired
  • country of origin: Italy

offer cyclevintagee:

  • quantity: 1
  • availability: In Stock
  • sold: 0
  • started: February 8, 2026
  • options: Ship-to-home

payments cyclevintagee:

  • other
  • wallet: Google-pay
  • credit card: Diners-club

seller cyclevintagee:

  • rating: 99.5%
  • city: Lowell, Massachusetts
  • # reviews: 2463

returns cyclevintagee:

  • policy: No Returns

shipping cyclevintagee:

  • service: Economy
  • transit: 4-10 Days
  • type: Fixed
  • class: Economy
  • cost: $0.00

general cyclevintagee:

  • Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories
  • condition: Remanufactured
for makes: harley, part type: spring fork, machine type: internal front fork springs, compatible model: aermacchi harley davidson 1973 x90, vintage part: yes, placement on vehicle: left, right, front, manufacturer warranty: expired, country of origin: italy,
category: motorcycle parts > motorcycle scooter parts accessories, color: raw steel, material: steel, sku: 20498783429802722,
Harley Davidson 46108-73P Is Similar To:
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1 offer $80.00 USD
  • Remanufactured. Offer #1 priced at $80.00 + $0.00 shipping estimate = $80.00* total. These parts are for 1973 X90 models ONLY! the original harley davidson part numbers is as follows.FREE SHIPPING

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