HONDA 40510-317-000B Chain Guard

( Manufacturer Part Number: 40510-317-000B ), ( Part Type: Guard Chain Guide ), ( Machine Type: Motorcycle ), ( Color: Black ), ( Item Diameter: Oem ), ( Compatible Model: Cb Cl 250 350 ), ( Material: Steel ), ( Vintage Part: Yes ), ( Modified Item: No ), ( Placement On Vehicle: Rear ), ( Unit Type: Unit ), ( Compatible Make: For Honda ), ( Country Of Origin: Japan )

Review HONDA Chain Guard Guide fits SCRAMBLER CB350G CL350 CB CL 350 250 1970–1973

The **Honda 40510-317-000B** chain guard is a meticulously crafted, high-quality aftermarket component designed specifically for the iconic **1970 1973 Honda CB350G and CL350 Scrambler** models, ensuring both functionality and style for these legendary off-road and dual-sport motorcycles. This chain guard is engineered to provide robust protection for the drive chain and sprocket while maintaining the aggressive, rugged aesthetic that defines the Scrambler s heritage. Crafted from durable, heavy-duty materials, it features a sleek, contoured design that seamlessly integrates with the motorcycle s frame, offering a perfect balance between protection and minimalistic form. The guard is built to withstand the rigors of off-road riding, shielding the chain from dirt, debris, and potential damage while reducing wear and tear on the drivetrain. Its precise fit ensures easy installation without compromising the bike s handling or performance, making it an essential upgrade for enthusiasts who demand both durability and authenticity. Whether cruising on paved roads or tackling rough terrain, this chain guard enhances the Scrambler s off-road capabilities while preserving its timeless, rugged charm.

### **Pros and Cons of Buying a 1970-1973 Honda CB350G/CL350 Scrambler (Part Number: 40510-317-000B)**

#### **Pros**

1. **Classic Design and Vintage Appeal**

The CB350G/CL350 is a well-known classic motorcycle, particularly the scrambler variant, which was one of the first true adventure bikes. Its retro styling, with a rugged, off-road-inspired look, makes it a desirable collector s item or a fun daily rider for enthusiasts who appreciate vintage motorcycles.

2. **Simple and Reliable Engine**

The 350cc air-cooled single-cylinder engine is straightforward in design, making it easier to maintain than modern high-performance bikes. Many parts are still available, and the engine is known for its durability if properly cared for. With basic maintenance, it can easily run for decades.

3. **Lightweight and Maneuverable**

At around 350 lbs (160 kg) fully fueled, it s lighter than many modern cruisers or sportbikes, making it easier to handle in tight spaces, on city streets, or even on light off-road trails. The scrambler s shorter wheelbase and slightly raised seat height also contribute to its nimble nature.

4. **Affordable to Purchase and Maintain**

Compared to modern motorcycles, the initial purchase price is often reasonable, especially for well-maintained examples. Parts are still relatively inexpensive, and labor costs are lower than for high-end bikes. Fuel efficiency is also decent for its class, averaging around 60-80 mpg (4-5 L/100km).

5. **Great for Learning or Casual Riding**

The CB350 is often recommended for beginner riders due to its manageable power (around 28-32 hp) and forgiving nature. It s also a fun bike for casual rides, track days, or weekend adventures without the complexity of modern electronics.

6. **Modification Potential**

The bike can be easily customized with aftermarket parts, including exhaust systems, carburetures, and suspension upgrades. Many owners enjoy restoring or modifying these bikes to improve performance or aesthetics.

7. **Strong Community and Support**

There is a dedicated community of Honda CB350 owners, with forums, clubs, and restoration guides available. This makes it easier to find advice, parts, and fellow enthusiasts who can help with projects or rides.

8. **Off-Road Capability (Scrambler Model)**

The scrambler variant comes with a chain guard, knobby tires, and a slightly raised suspension, giving it modest off-road capability. While not a true dual-sport bike, it can handle light trails or gravel roads better than a standard street bike.

9. **Low Operating Costs**

Insurance, registration, and maintenance costs are typically lower than for modern bikes, especially if you re not pushing it hard. Oil changes, spark plugs, and basic upkeep are inexpensive compared to high-performance or electric motorcycles.

10. **Nostalgia and Sentimental Value**

For many riders, owning a classic like this is about the experience and connection to motorcycle history. The sound, feel, and simplicity of riding a bike from the early 1970s can be deeply satisfying.

---

#### **Cons**

1. **Outdated Safety Features**

The bike lacks modern safety features such as ABS, traction control, or advanced braking systems. The single-disc brake (or even drum brakes on older models) provides less stopping power than contemporary bikes, which can be a concern in emergency situations.

2. **Poor Fuel Economy on Highways**

While the CB350 is efficient in city traffic, it struggles on highways due to its single-cylinder engine. At highway speeds, fuel economy drops significantly, and the engine can feel sluggish compared to modern bikes.

3. **Limited Power and Performance**

The 350cc engine produces only about 28-32 hp, which is modest by today s standards. It lacks the torque and acceleration of modern bikes, making it feel underpowered on highways or when overtaking. The scrambler s weight distribution and suspension are also not optimized for high-speed stability.

4. **Comfort Limitations**

The ergonomics are basic by modern standards. The seat is firm, the handlebars are narrow, and the riding position is upright but not as ergonomic as contemporary bikes. Long rides can be tiring, especially for taller riders.

5. **Reliability Issues with Age**

Many of these bikes are 50 years old, and while some have been well-maintained, others may suffer from rust, worn-out suspension, or failing electrical components. A thorough inspection is crucial before purchasing to avoid hidden issues like seized engines, rusted frames, or leaking fuel tanks.

6. **Parts Availability Can Be Hit-or-Miss**

While basic parts are still available, some specialized components (e.g., rare carburetures, suspension parts, or electrical wiring) may be difficult to find. Restoration projects can require sourcing parts from vintage dealers or eBay.

7. **Resale Value is Low**

Unlike some classic motorcycles (e.g., Japanese bikes from the 1960s-70s), the CB350G/CL350 does not hold its value well. If you plan to sell it later, you may not recover much of your initial investment unless it s in pristine condition.

8. **Environmental and Noise Regulations**

Older bikes often fail modern emissions and noise standards, which can lead to restrictions in some areas. Some regions require mufflers or catalytic converters, which may not fit or be compatible with the original setup.

9. **Limited Modern Technology**

The bike lacks features like digital dashboards, Bluetooth connectivity, or even a reliable ignition system compared to modern bikes. Starting can be unreliable if the battery or starter are old, and diagnostics require mechanical knowledge.

10. **Potential for Hidden Damage**

Rust is a common issue, particularly in the frame, swingarm, and fuel tank. A thorough inspection by a mechanic is essential to avoid buying a bike with structural weaknesses that could lead to accidents.

---

### **Conclusion**

The 1970-1973 Honda CB350G/CL350 Scrambler is a fantastic motorcycle for riders who appreciate its vintage charm, simplicity, and nostalgic appeal. It s an excellent choice if you re looking for a fun, low-cost bike for casual riding, learning, or restoration projects. The scrambler variant adds off-road character, making it versatile for light trails or urban adventures.

However, it s not ideal for riders seeking high performance, modern safety features, or long-distance comfort. The bike s limitations in power, reliability (if not well-maintained), and lack of advanced technology mean it s best suited for enthusiasts who prioritize character over capability.

If you re drawn to the classic look, enjoy tinkering with mechanics, or simply want a unique riding experience, this bike is a great investment. But if you need a reliable, high-performance, or safe daily rider, a modern bike would be a better choice.

---

### **Recommendation**

- You re a vintage motorcycle enthusiast who values history and simplicity.

- You plan to restore or modify it as a hobby.

- You re a beginner rider looking for an affordable, easy-to-maintain bike.

- You primarily ride in urban or light off-road conditions and don t need high speeds.

- You re prepared to invest time in maintenance and inspections to ensure reliability.

- You prioritize modern safety features like ABS or traction control.

- You frequently ride on highways or need high-speed stability.

- You want a bike with low operating costs in the long term (e.g., insurance, fuel efficiency).

- You re not comfortable with basic mechanical maintenance or diagnostics.

- You plan to use it as a primary daily rider for long distances without modifications.

For the right buyer someone who appreciates the bike s heritage and isn t expecting modern performance the CB350G/CL350 Scrambler is a rewarding purchase. However, it s not a "set-and-forget" bike; it requires attention to stay reliable. If you re willing to put in the effort, it s a fantastic ride with a unique place in motorcycle history.

Details:

Good condition, shiny paint with only minor imperfections, no cracks or dents. Chain guard from a 1973 Honda CB350G. These have been long discontinued by Honda. CB350K2 SUPER SPORT 1970 USA.

Check my other listings for more CB parts. Message with any questions. CB350K3 SUPER SPORT 1971 USA. Other model's that this item fits to%.

CB350G SUPER SPORT 1973 USA.

part #: 40510317000b prices

• $24.99-$164.99

specifications cyclevintagee:

• for models: Cb350g, Cl350, Cb, Cl, 350, 250, Scrambler
• for makes: Honda
• for years: 1970-1973
• mpn: 40510-317-000b
• part type: Guard Chain Guide
• machine type: Motorcycle
• color: Black
• item diameter: Oem
• compatible model: Cb Cl 250 350
• material: Steel
• vintage part: Yes
• modified item: No
• placement on vehicle: Rear
• unit type: Unit
• compatible make: For Honda
• country of origin: Japan

general cyclevintagee:

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

seller cyclevintagee:

• # reviews: 4109
• city: Amelia Court House, Virginia
• rating: 100.0%

payments cyclevintagee:

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

shipping cyclevintagee:

• type: Calculated
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• cost: $0.00
• transit: 4-7 Days

offer cyclevintagee:

• availability: In Stock
• sold: 0
• started: April 18, 2026
• quantity: 1
• options: Ship-to-home

returns cyclevintagee:

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

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