BALLS MN-GC2K Crank Bearing Seal Big Wheel Kit All MN/GC2K

( Brand: Balls ), ( Manufacturer Part Number: MN/GC2K ), ( Type: Crank Bearing And Seal Kit ), ( Compatible Year: 1994 1993 1992 1991 1990 1989 1988 1987 ), ( Compatible Model: Kx80 Big Wheel ), ( Bundle Description: 1 Pc Genuine All Balls Crank Bearing And Seal Kit ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review BALLS All Mn/gc2k Crank Bearing And Seal Kit Kawasaki Big Wheel Hr fits KX80 1987–1994

The **Balls MN/GC2K Crank Bearing Seal Kit** is a meticulously engineered upgrade designed specifically for the **1987 1994 Kawasaki KX80 Big Wheel**, ensuring optimal performance, durability, and reliability in even the most demanding off-road conditions. This premium kit replaces the stock crankshaft needle bearings and seals with high-performance, precision-machined components that significantly reduce friction, minimize oil leakage, and extend the lifespan of your engine s critical moving parts. The **MN (Main Needle Bearings)** and **GC2K (Crankshaft Center Bearings)** are crafted from superior-grade chrome-plated steel, offering superior load-bearing capacity and resistance to wear, which is particularly beneficial for riders pushing their KX80 to its limits on rough terrain or under heavy acceleration. Unlike generic aftermarket alternatives, these bearings are designed to match the exact specifications of the Kawasaki KX80 s crankshaft journals, ensuring a perfect fit and eliminating the risk of premature failure or excessive play. Complementing the bearings is a **high-quality rubber seal kit**, featuring a reinforced lip design that effectively prevents oil leaks while maintaining a tight, consistent seal under high RPM and extreme temperatures. Whether you re tackling rocky trails, deep mud, or aggressive racing circuits, this kit provides the structural integrity and smooth operation needed to keep your KX80 running at peak efficiency. Ideal for both restoration projects and high-mileage maintenance, the **Balls MN/GC2K Crank Bearing Seal Kit** is a must-have for serious riders who demand nothing less than the best in performance and longevity from their Kawasaki KX80.

Buying the **Balls MN/GC2K Crank Bearing Seal Kit** for a **1987-1994 Kawasaki KX80 Big Wheel** has several advantages and disadvantages, depending on your priorities, budget, and maintenance goals. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Balls MN/GC2K Crank Bearing Seal Kit**

1. **High-Quality Materials and Craftsmanship**

The Balls brand is well-regarded in the off-road and motocross community for producing durable, precision-engineered parts. Their seal kits are designed to withstand high stress, heat, and vibration, which is critical for a high-performance or heavily ridden KX80. The seals are often made from high-grade rubber compounds that resist oil degradation and cracking better than OEM or generic aftermarket alternatives.

2. **Improved Reliability and Longevity**

The stock seals on older KX80s can wear out quickly, especially if the bike is ridden aggressively or in dusty conditions. The Balls seals are thicker and more robust, reducing the risk of premature failure. This can extend the life of your crank bearings and prevent costly internal damage from seal leaks.

3. **Better Sealing Performance**

Balls seals are designed to create a tighter seal than OEM parts, which helps prevent oil leaks and contamination of the crankcase. This is particularly useful if you modify your KX80 with aftermarket crankshafts, pistons, or other internals that may require extra protection.

4. **Compatibility with Modifications**

If you ve upgraded your KX80 with a **big wheel (e.g., 20" or larger)**, a **longer crankshaft**, or other performance parts, the Balls seals are often a better fit than stock seals. They accommodate slight variations in crankshaft length and diameter, reducing the risk of binding or premature wear.

5. **Easier Installation**

Balls provides clear installation instructions and often includes tools or guides to ensure proper seating of the seals. This can make the job less intimidating for DIYers who may not have experience with crankshaft work.

6. **Positive Reputation in the Community**

Many riders and mechanics trust Balls for critical components like seals and bearings. Positive reviews and word-of-mouth recommendations often support its reputation for reliability, especially in high-stress applications.

7. **Warranty and Support**

Balls offers warranties on their products, which can provide peace of mind if the seals fail prematurely. Their customer service is generally responsive, and they stand behind their parts more than some generic brands.

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### **Cons of the Balls MN/GC2K Crank Bearing Seal Kit**

1. **Higher Cost Compared to OEM or Generic Alternatives**

The Balls seal kit is significantly more expensive than stock Kawasaki seals or no-name aftermarket options. For a KX80, which is already a budget-friendly bike, the cost can be a deterrent if you re on a tight budget or only need a basic replacement.

2. **Overkill for Light Use**

If your KX80 is ridden occasionally or mostly for casual trail use without heavy stress, the Balls seals may be more than necessary. Stock seals or a mid-range aftermarket kit (e.g., from **Race Bearings** or **Kawasaki-specific brands**) might suffice without the extra expense.

3. **Potential for Over-Tightening During Installation**

Balls seals are designed to be tight, but inexperienced installers might over-tighten them, leading to seal damage or crankshaft distortion. This requires careful attention to torque specifications and proper installation techniques.

4. **Limited Availability and Lead Times**

While Balls is a reputable brand, their parts may not be as widely stocked as OEM or generic aftermarket options. You might need to order online, which could result in longer wait times compared to picking up stock parts at a local bike shop.

5. **Mixed Reviews on Durability in Extreme Conditions**

While Balls seals are generally durable, some riders report that in extreme conditions (e.g., high heat, prolonged off-road use, or heavy modification), even high-quality seals can wear out over time. This is less of a flaw with the product itself and more about the limits of any seal in harsh environments.

6. **Not Always Necessary for Stock Crankshafts**

If you re not modifying your KX80 and using the stock crankshaft, the performance gain from Balls seals may be marginal. In such cases, a **Race Bearings or Kawasaki-specific seal kit** could offer a better balance of cost and performance.

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### **Conclusion**

The **Balls MN/GC2K Crank Bearing Seal Kit** is an excellent choice if you prioritize **durability, reliability, and performance** for your **1987-1994 Kawasaki KX80**, especially if you ve modified the bike with a **big wheel, longer crankshaft, or other performance parts**. The higher cost is justified by the improved sealing, reduced risk of leaks, and longer lifespan compared to stock or generic seals.

However, if your KX80 is **lightly used, stock, or on a tight budget**, the investment may not be worth it. In such cases, **OEM seals or a mid-range aftermarket kit** (e.g., **Race Bearings or Kawasaki s own aftermarket parts**) could provide adequate protection without the extra expense.

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### **Recommendation**

- You ride your KX80 **aggressively or frequently**.

- You ve **modified the bike with a big wheel, longer crankshaft, or other performance parts**.

- You want **maximum reliability and longevity** for your crankshaft and bearings.

- You re willing to **invest in high-quality components** for long-term durability.

- Your KX80 is **stock or lightly used**.

- You prefer a **more budget-friendly option** (e.g., **Race Bearings, Kawasaki aftermarket seals, or OEM replacements**).

- You re unsure about installation and want **easier-to-find, lower-cost seals**.

For most **heavily ridden or modified 1987-1994 KX80s**, the **Balls kit is the best choice** due to its reputation and performance. For stock or casual riders, a **Race Bearings or Kawasaki-specific seal kit** may be sufficient. Always ensure proper installation to avoid voiding warranties or damaging the crankshaft.

Details:

All Balls Crank Bearing and Seal Kit for 1987 - 1994 Kawasaki KX80 Big Wheel - hr: Status: In Stock.

part #: mngc2k prices

• $18.89-$69.00

specifications bearingmotorcycleiz:

• for makes: Kawasaki
• for years: 1987-1994
• brand: Balls
• mpn: Mn/gc2k
• type: Crank Bearing And Seal Kit
• compatible year: 1994 1993 1992 1991 1990 1989 1988 1987
• compatible model: Kx80 Big Wheel
• bundle description: 1 Pc Genuine All Balls Crank Bearing And Seal Kit
• core charge: Free No Core Charge
• fitment type: Direct Replacement

shipping bearingmotorcycleiz:

• class: Standard
• service: Standard
• transit: 2-6 Days
• cost: $0.00
• type: Fixed

returns bearingmotorcycleiz:

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

offer bearingmotorcycleiz:

• options: Ship-to-home
• sold: 0
• started: February 5, 2026
• quantity: 1
• availability: In Stock

seller bearingmotorcycleiz:

• rating: 98.7%
• # reviews: 17103
• city: Multiple warehouses

general bearingmotorcycleiz:

• condition: New
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Engine Bearings

payments bearingmotorcycleiz:

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

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