HONDA 31110-MKY-E01 Engine Flywheel

( Manufacturer Part Number: 31110-MKY-E01 ), ( Type: Flywheel ), ( Country/region Of Manufacture: Japan ), ( Color: Silver ), ( Manufacturer Warranty: Unspecified Length ), ( Placement On Vehicle: Engine ), ( Storage Location: L.3.b.5 5001163-x ), ( Custom1: 243142 ), ( Finish: Raw/unpainted ), ( Machine Type: Street Motorcycle ), ( Country Of Origin: United States )

Review HONDA Engine Flywheel fits CBR650R 1926–2024

The **Honda 31110-MKY-E01 24-26 Model Year CBR650R Engine Flywheel** is a precision-engineered component designed to deliver optimal performance and reliability for Honda s high-revving, sport-tuned CBR650R motorcycle. Crafted from high-grade forged steel, this flywheel is engineered to withstand the intense rotational forces generated by the CBR650R s liquid-cooled, fuel-injected, DOHC 16-valve engine, ensuring smooth power delivery and minimal vibration across the rev range. The flywheel s robust construction features a balanced weight distribution, meticulously tuned to harmonize with the crankshaft and harmonic balancer, reducing parasitic drag and enhancing overall engine efficiency. Its polished surface and precision-machined teeth are designed to work seamlessly with the stock clutch system, providing a consistent and responsive engagement for both throttle inputs and gear shifts. Whether you're a performance enthusiast seeking to fine-tune your CBR650R s powerband or a mechanic looking for an OEM-quality replacement, this flywheel offers the durability and performance expected from Honda s legendary engineering. Built to meet the exacting standards of the 24-26 model year, it ensures compatibility with the CBR650R s advanced ignition system and electronic fuel injection, making it an ideal choice for both stock applications and aftermarket modifications. With its attention to detail and commitment to performance, this flywheel exemplifies Honda s dedication to delivering a motorcycle experience that balances power, precision, and longevity.

### **Pros and Cons of Buying a Honda 31110-MKY-E01 (24-26 Model Year) CBR650R Engine Flywheel**

1. **Proven Reliability** Honda s CBR650R engines are well-known for durability and consistent performance. The 31110-MKY-E01 variant is part of a proven lineup with a strong track record in both stock and modified applications.

2. **High Performance Potential** The CBR650R engine is a popular choice for tuning due to its strong bottom end, good redline (12,500 RPM), and responsive throttle response. It can handle forced induction (turbo/supercharger) and nitrous oxide (NOS) modifications well with proper support.

3. **Aftermarket Support** This engine benefits from extensive aftermarket parts, including performance air intakes, exhaust systems, ECU tuners (e.g., Power Commander, Haltech), and high-flow internals (pistons, rings, crankshafts). The community is large, making troubleshooting and upgrades easier.

4. **Lightweight and Compact** The CBR650R engine is relatively compact, making it suitable for projects where space is limited. Its weight (around 100-110 lbs with flywheel) is manageable for most builds.

5. **Fuel Injection (FI) System** Unlike older carbureted engines, this is a fuel-injected model, which improves throttle response, fuel efficiency, and emissions compliance. Tuning is more straightforward with modern ECU solutions.

6. **Common Modifications** Many owners have successfully built turbocharged, supercharged, and naturally aspirated high-RPM versions of this engine. The stock internals can handle significant power increases with proper reinforcement (e.g., billet crank, forged rods).

7. **Resale Value** As a Honda engine, it retains decent resale value, especially if it comes from a well-maintained CBR650R or a reputable rebuild shop.

8. **Ease of Installation** The engine block and flywheel assembly are compatible with various chassis, including other Honda models (e.g., CBR500R, CBR1000R mounts with adapters) and aftermarket builds.

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1. **Potential for Weaknesses in Stock Form** While the CBR650R engine is strong, some owners report issues with the stock crankshaft (flexing under high RPM), pistons (oil control rings), and head gasket integrity if not properly maintained. Reinforcement is often recommended for high-power builds.

2. **Cost of Modifications** Building this engine for serious power requires significant investment. A turbo setup alone can cost $2,000 $5,000 , and high-end internals (e.g., billet crank, forged rods) add to the expense. Labor costs for installation and tuning can also be high.

3. **Longevity Concerns Under Heavy Load** Without proper reinforcement (e.g., crankshaft, connecting rods, pistons), the engine may struggle to last beyond 100 150 horsepower without failure. Turbocharging without a supporting build can lead to catastrophic damage.

4. **ECU Limitations** The stock ECU is not optimized for high-power modifications. A tuner (e.g., Power Commander, Haltech) is nearly always required, adding complexity and potential for tuning errors if not done correctly.

5. **Flywheel Compatibility Issues** The 31110-MKY-E01 flywheel may not fit perfectly in all builds, especially if repurposing it for a different chassis. Custom mounts or adapters may be needed, increasing costs.

6. **Maintenance Requirements** Like all high-performance engines, this one demands meticulous maintenance, including regular oil changes (synthetic oil recommended), valve adjustments, and cooling system checks. Neglect can lead to premature failure.

7. **Market Saturation** Due to its popularity, the aftermarket is flooded with parts, which can make sourcing high-quality or rare components (e.g., OEM internals) more challenging and expensive.

8. **Potential for Scams or Counterfeit Parts** Buying used or aftermarket parts for this engine carries a risk of receiving subpar or fake components. Always verify sources and inspect parts thoroughly.

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The **Honda 31110-MKY-E01 (24-26 CBR650R) engine flywheel** is an excellent choice for builders seeking a **reliable, high-performance foundation** for a project, whether naturally aspirated or turbocharged. Its **strong aftermarket support, tuning potential, and proven durability** make it a favorite among enthusiasts. However, it requires **careful planning, budgeting for modifications, and proper maintenance** to avoid common pitfalls like crankshaft flex, head gasket leaks, or premature wear under heavy load.

If you are **experienced with engine builds** and willing to invest in **reinforcement, tuning, and maintenance**, this engine is a **solid investment**. For **beginners or those on a tight budget**, it may be better to start with a simpler or more forgiving engine platform until you gain confidence in modifications.

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- **Buy if:** You have a clear project plan, budget for necessary upgrades (turbo/supercharger, internals, tuning), and are prepared for the maintenance demands. Consider pairing it with a **supporting chassis** (e.g., CBR650R, CBR500R, or aftermarket frame) and a **reputable rebuild shop** if purchasing used.

- **Avoid if:** You lack experience with engine modifications, cannot afford the full build cost, or are unwilling to commit to long-term maintenance. In such cases, consider a **more forgiving engine** (e.g., CBR500R, GSX-R600) or a **pre-built performance package** from a trusted manufacturer.

- **Naturally aspirated high-RPM builds** (with upgraded internals and exhaust).

- **Turbocharged projects** (with a supporting crank, rods, and cooling).

- **Builds requiring a compact, high-revving engine** (e.g., slicks, track bikes, custom streetfighters).

- **Billet crankshaft** (e.g., JE, Scorpius).

- **Forged connecting rods** (e.g., Scorpius, JE).

- **High-flow internals** (pistons, rings, valves).

- **Turbo/supercharger setup** (if going forced induction).

- **High-quality ECU tuner** (Power Commander, Haltech, or AEM).

- **Reinforced oil system** (larger oil pump, cooler, catch can).

Details:

We started with a single motorcycle dismantled in home garage. Please verify the part number and compatible model's before purchasing. Do you accept offers?, Some listings offers. OEM 31110-MKY-E01 Dens.

One-Of-A-Kind When Its Gone, Gone 24-26 Honda CBR650R Engine Flywheel 31110-MKY-E01:: - Stater rotor magneto with integrated crank position trigger teeth. Part is off a 2024 Honda CBR650R, Watch A Video From Sun Coast Cycle Sports. Look for the Make Offer button on listing page.: Are these genuine OEM parts?, Yes.

We review all reasonable offers promptly. Do you combine shipping?, Yes. Every part is one-of-a-kind.

Item must be in original, uninstalled condition with no modifications. Fits 2024 Honda CBR650R and CB650R model's. Structurally sound, magnets intact, and no damage to trigger wheel teeth.

part #: 31110mkye01 price

• $240.92

specifications cywhemo:

• for models: Cbr650r
• for makes: Honda
• for years: 1926-2024
• mpn: 31110-mky-e01
• type: Flywheel
• country/region of manufacture: Japan
• color: Silver
• manufacturer warranty: Unspecified Length
• placement on vehicle: Engine
• storage location: L.3.b.5 5001163-x
• custom1: 243142
• finish: Raw/unpainted
• machine type: Street Motorcycle
• country of origin: United States

offer cywhemo:

• started: June 4, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock

general cywhemo:

• condition: Used
• Motorcycle Scooter Parts Accessories > Wheels, Tires Parts > Wheels Rims

payments cywhemo:

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

seller cywhemo:

• city: Odessa, Florida
• # reviews: 234296
• rating: 99.5%

returns cywhemo:

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

shipping cywhemo:

• service: FedEx Ground / FedEx Home Delivery, USPS Priority Mail, FedEx 2Day, Overnight
• transit: 4-8 Days
• carrier: FedEx, USPS
• type: Fixed
• cost: $0.00
• class: Standard, Expedited, One-day

Honda 31110-MKY-E01 Is Similar To:

• Honda 31110-meg-013 04-09 Vt750c Shadow Aero 750 Flywheel Starter Clutch (54.5% similar) Part is off a 2008 honda VT750 shadow aery, watch video of this unit - YouTube. Fits 2004 -2023 honda shadow VT750 aery, spirit, and phantom shaft drive model's. Assembly in excellent working condition with intact magnets and sharp gear teeth. Flywheel with starter clutch - magneto rotor assembly...(March 13th, 2026)