Lexmoto ZSB 125: Gears and More

The Lexmoto ZSB 125 is a popular choice for new riders and those seeking an economical and stylish urban commuter. A common question that arises for potential owners or current riders is about its gearbox specifications, specifically how many gears it has. Understanding the gear configuration is crucial for both riding technique and maintenance. This article aims to provide a comprehensive answer regarding the gears of the Lexmoto ZSB 125, along with broader insights into its mechanical aspects and common maintenance practices to keep your motorcycle in tip-top condition.

Lexmoto ZSB 125 Gearbox Explained

The Lexmoto ZSB 125 is equipped with a 5-speed manual transmission. This means it has a neutral gear and four forward gears, allowing the rider to select the appropriate gear ratio for different riding speeds and conditions. The sequential gearbox operates by the rider using the clutch lever and the gear lever to shift up or down through the gears. Typically, the gear pattern is as follows:

Correctly utilising these gears will significantly improve your riding experience, fuel efficiency, and the longevity of the transmission. Learning the feel of the bike and when to shift is part of becoming a proficient rider.

Understanding Motorcycle Gears

Motorcycle gears are essentially a system of different-sized sprockets that work together to allow the engine to operate efficiently across a wide range of speeds. The engine produces power within a specific RPM (Revolutions Per Minute) range. Gears help to "gear down" the engine's output for starting and low speeds (lower gears provide more torque but less speed) and "gear up" for higher speeds (higher gears provide less torque but allow for higher speeds at lower engine RPMs, improving fuel economy and reducing engine strain).

Why Gear Count Matters

The number of gears on a motorcycle affects its performance and usability:

• Fuel Efficiency: More gears generally allow the rider to keep the engine in its optimal RPM range more often, leading to better fuel economy, especially on longer journeys.
• Performance: A well-spaced gearbox can provide better acceleration and a higher top speed.
• Riding Comfort: With more gears, you can often find a gear that keeps the engine revving smoothly, reducing vibration and making for a more comfortable ride.

For a 125cc motorcycle like the ZSB 125, a 5-speed gearbox is a common and effective setup, balancing performance, efficiency, and simplicity. Some larger or more performance-oriented motorcycles may have 6 or even 7-speed gearboxes.

Maintenance for Your Lexmoto ZSB 125 Gearbox

To ensure your Lexmoto ZSB 125's gearbox operates smoothly and reliably, regular maintenance is key. Here are some essential points:

1. Gearbox Oil Changes

The gearbox oil is vital for lubricating the gears, bearings, and clutch. Over time, this oil can degrade, losing its lubricating properties and becoming contaminated with metal particles from wear. Regular oil changes are paramount.

• Frequency: Consult your Lexmoto ZSB 125 owner's manual for the recommended oil change interval. Generally, for a 125cc motorcycle, this might be every 3,000 to 6,000 miles or annually, whichever comes first.
• Type of Oil: Always use the correct grade and type of gearbox oil specified by Lexmoto. Using the wrong oil can lead to poor lubrication, increased wear, and potential damage. Look for JASO MA or MA2 certified motorcycle-specific oils.
• Procedure: Ensure the engine is warm (but not hot) before draining the oil. Locate the drain plug, drain the old oil into a suitable container, replace the drain plug (with a new washer if recommended), and then refill with the correct amount of new oil through the filler cap.

2. Clutch Adjustment

The clutch plays a critical role in gear changes. A properly adjusted clutch ensures smooth engagement and disengagement, preventing grinding and wear on the gearbox components. If the clutch feels too tight or too loose, or if gear changes are becoming difficult, it may need adjustment.

• Free Play: The clutch lever should have a small amount of "free play" before it starts to disengage the clutch. Check your manual for the specific amount of free play required for the ZSB 125.
• Adjustment Points: Adjustment is typically done at the clutch lever itself and/or at the cable end near the engine casing.

3. Chain Maintenance

While not directly part of the gearbox, the final drive chain is directly connected to it. A poorly maintained chain can affect how the gears feel and can put undue stress on the transmission components.

• Lubrication: Regularly clean and lubricate your chain, especially after riding in wet or dirty conditions. Use a quality motorcycle chain lube.
• Tension: Ensure the chain has the correct tension. Too tight, and it can strain the engine and gearbox; too loose, and it can jump off the sprockets. Again, your owner's manual will specify the correct tension.
• Wear: Inspect the chain and sprockets for wear. Worn components should be replaced as a set.

Troubleshooting Common Gearbox Issues

Even with regular maintenance, you might encounter minor issues. Here are a few common ones and potential causes:

Frequently Asked Questions (FAQ)

Q1: Does the Lexmoto ZSB 125 have a slipper clutch?

A1: No, the Lexmoto ZSB 125 typically features a standard multi-plate wet clutch, not a slipper clutch. Slipper clutches are more common on higher-performance motorcycles.

Q2: Can I use car engine oil in my Lexmoto ZSB 125 gearbox?

A2: It is strongly advised against using car engine oil. Car oils often contain friction modifiers that can cause the clutch plates in your motorcycle to slip, and they may not have the correct additives for gear lubrication.

Q3: How do I find neutral on the Lexmoto ZSB 125?

A3: Neutral is typically found by lifting the gear lever slightly up from first gear. You'll usually feel a distinct "click" or a slight looseness in the lever's travel. Many bikes have a neutral indicator light on the dashboard.

Q4: What happens if I don't change the gearbox oil?

A4: Neglecting gearbox oil changes can lead to increased wear on gears and bearings, potential overheating, difficulty shifting, and ultimately, expensive gearbox failure. It's a critical maintenance task.

In conclusion, the Lexmoto ZSB 125 is a 5-speed motorcycle. Understanding its gearbox and performing regular, diligent maintenance, especially concerning oil changes and clutch adjustments, will ensure your riding experience is enjoyable and your motorcycle remains a reliable companion on the road. Always refer to your owner's manual for specific service intervals and recommendations.