HONDA 23426-153-010 Countershaft Gear 35T

( Manufacturer Part Number: 23426-153-010 ), ( Part Type: Gear ), ( Machine Type: Off-road Motorcycle ), ( Manufacturer Warranty: No ), ( Vintage Part: Yes ), ( Country Of Origin: Japan )

Review HONDA Countershaft Low Gear 35t fits XR80 1990

The **Honda 23426-153-010 1990 XR80 Countershaft Gear (35T)** is a precision-engineered, high-performance transmission component designed exclusively for Honda s legendary **XR80** off-road motorcycle, manufactured during the early 1990s. This countershaft gear, marked with a **35-tooth (35T) configuration**, plays a critical role in the motorcycle s drivetrain, facilitating smooth power transfer from the primary drive to the final drive system while maintaining optimal gear engagement and durability under demanding off-road conditions. Crafted from **high-grade alloy steel**, this gear is heat-treated to achieve an ideal balance of strength, wear resistance, and longevity, ensuring it can withstand the rigors of rugged terrain, frequent shifting, and the high torque demands of the XR80 s reliable 250cc single-cylinder engine. The gear s precise **35-tooth count** is specifically calibrated to complement the XR80 s transmission ratios, allowing for seamless gear meshing with the corresponding countershaft sprocket and final drive components, thereby minimizing chain wear and maximizing efficiency. Whether restoring a classic XR80 to factory specifications or upgrading an existing drivetrain for enhanced performance, this **OEM-replacement part** ensures compatibility with the original Honda build standards, delivering the same level of reliability and performance that made the XR80 a favorite among off-road enthusiasts. Its **direct-fit design** eliminates the need for modification, making it an ideal choice for mechanics and riders seeking authenticity and performance without compromise.

### **Pros and Cons of buying a Honda 23426-153-010 (1990 XR80 Countershaft Gear, 35T)**

1. **Reliability and Durability** Honda parts, especially those from the XR80 series, are known for their robust construction and longevity when properly maintained. This gear is designed to handle the stress of a high-performance engine, making it a dependable choice for long-term use.

2. **Direct Replacement Fit** The part number (23426-153-010) is a genuine OEM (Original Equipment Manufacturer) component for the 1990 Honda XR80, ensuring an exact fit without modifications. This eliminates the need for adjustments or aftermarket conversions, reducing potential issues.

3. **Performance Potential** The 35-tooth countershaft gear is a common upgrade choice for riders looking to increase engine revving potential. When paired with a higher-tooth primary drive gear (e.g., 14T instead of 13T), it can improve top-end power and smoothness, especially in stock or lightly modified engines.

4. **Ease of Installation** As a single gear, this part is relatively straightforward to install, requiring only basic tools and mechanical knowledge. Many riders and mechanics have experience working with XR80 countershaft gears, making the process accessible.

5. **Cost-Effective Upgrade** Compared to full engine rebuilds or major modifications, replacing just the countershaft gear is a budget-friendly way to enhance performance. Prices for this part are typically reasonable, especially when sourced from reputable sellers or used markets.

6. **Compatibility with Modifications** If you plan to further modify your XR80 (e.g., porting, carburetor upgrades, or clutch adjustments), this gear can serve as a solid foundation for those changes. It s a modular part that integrates well with other performance enhancements.

7. **Availability of Supporting Parts** Since the XR80 is a classic but well-documented bike, finding related components (e.g., primary chain, sprocket, or clutch kits) is relatively easy. This ensures you can complete the upgrade without long waits for parts.

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1. **Limited Stock Availability** While this part is common, genuine OEM gears may be harder to find in new condition, especially from authorized dealers. You may need to source it from used markets, eBay, or specialty motorcycle parts stores, which could introduce risks like counterfeit or worn-out parts.

2. **Potential Wear in Used Parts** If purchasing a used gear, there s a risk of it being worn or damaged, which could lead to premature failure or reduced performance. Inspecting the part for nicks, cracks, or uneven teeth is crucial before buying.

3. **Requires Additional Modifications** While the 35T gear itself is beneficial, its full potential is unlocked when paired with other changes (e.g., a 14T primary drive gear, a heavier flywheel, or a stronger clutch). Without these, the gear alone may not provide noticeable benefits.

4. **Chain and Sprocket Considerations** Upgrading the countershaft gear often necessitates adjusting the primary chain and sprocket to maintain proper gearing. Mismatched gearing can cause poor shifting, excessive chain wear, or even damage to the transmission.

5. **Learning Curve for Installation** Although the installation is manageable, it requires disassembling the engine s primary drive section. Mistakes during reassembly (e.g., incorrect torque specs, misaligned gears, or improper chain tension) can lead to drivability issues or engine damage.

6. **Potential for Voiding Warranty** If your XR80 is still under warranty (unlikely for a 1990 model), installing aftermarket or modified parts may void coverage. Always check warranty terms before proceeding.

7. **Noise and Vibration** Higher-tooth gears can sometimes introduce more noise or vibration, especially if the primary chain or sprocket are not optimized for the new gearing. This may require additional tuning or damping solutions.

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The **Honda 23426-153-010 (1990 XR80 countershaft gear, 35T)** is a **solid, reliable upgrade** for riders looking to enhance their XR80 s performance, particularly in terms of revving potential and smoothness. It s a **cost-effective and relatively easy** modification when paired with complementary changes (e.g., primary gear and chain adjustments). However, it s not a "magic fix" on its own its benefits depend on proper installation and additional tuning.

The **pros outweigh the cons** for most riders, especially those with mechanical experience or access to guidance. The **main drawbacks** revolve around sourcing genuine parts, ensuring compatibility with other components, and avoiding installation mistakes. If you re willing to put in the effort to research, prepare, and execute the upgrade correctly, this gear can be a **valuable addition** to your XR80 s performance profile.

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- **Buy it if:** You re comfortable with basic engine work, have a plan to pair it with a 14T primary drive gear and a suitable chain, and want to improve your XR80 s top-end power and drivability.

- **Source it from:** Reputable sellers (e.g., **Honda parts dealers, eBay with verified feedback, or trusted classic motorcycle forums**) to avoid counterfeit or damaged parts.

- **Prepare for:** Additional modifications (e.g., clutch, flywheel, or carburetor tuning) to fully realize the gear s potential.

- **Avoid if:** You lack mechanical experience, cannot verify the part s authenticity, or are unwilling to invest time in proper installation and tuning.

**Final Verdict:** **Worth it for the right rider.** If you re serious about optimizing your XR80 s performance, this gear is a **smart, affordable upgrade** just ensure you approach it methodically.

Details:

Sometimes threads appear good but when tightening they may not be okay. I usually have several other parts from this machine. Check with me if you are looking for something specific, I usually reply within a day of messaging. Some items may have bends or cracks due to the age and usage of item.

Parts may fit other model's, please cross reference part numbers. Countershaft low gear 23426-153-010 removed from a clean running 1990 Honda XR80R dirt bike. All parts are used, they may be scratched, marked up, dirty, oily, and have some corrosion or rust.

part #: 23426153010 prices

• $15.00-$49.95

specifications cyclevintagee:

• for models: Xr80
• for makes: Honda
• for years: 1990
• mpn: 23426-153-010
• part type: Gear
• machine type: Off-road Motorcycle
• manufacturer warranty: No
• vintage part: Yes
• country of origin: Japan

general cyclevintagee:

• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories
• condition: Used

returns cyclevintagee:

• policy: No Returns

payments cyclevintagee:

• credit card: Discover
• wallet: Apple-pay
• other

shipping cyclevintagee:

• cost: $5.89
• class: Standard
• service: USPS Ground Advantage
• transit: 6-12 Days
• type: Calculated
• carrier: USPS

seller cyclevintagee:

• # reviews: 654
• city: Holgate, Ohio
• rating: 99.4%

offer cyclevintagee:

• started: May 24, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1

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