BSA 67-1205 Right Conrod 67-1160

( Brand: Bsa ), ( Manufacturer Part Number: 67-1205 ), ( Unit Type: Unit ), ( Oe/oem Part Number: 67-1160 ), ( Universal Fitment: No ), ( Vintage Part: Yes ), ( Placement On Vehicle: Right )

Review BSA Right Hand Conrod fits A10

The **BSA 67-1205 and 67-1160 Right-Hand A10 Connecting Rods** are precision-engineered components designed exclusively for high-performance and classic British motorcycle engines, particularly those built around the legendary **A10 engine family**, including models like the **AJ6, AJ7, A10, and A100** from manufacturers such as BSA, Triumph, and Matchless. These rods are crafted from **high-grade forged steel**, ensuring exceptional strength, durability, and resistance to fatigue under the extreme stresses of high-revving, high-performance applications. The **right-hand rod** (part numbers 67-1205 and 67-1160) is specifically engineered to accommodate the unique geometry and load-bearing requirements of the A10 s crankshaft configuration, where the right-side rod must handle both the primary drive forces and the torque generated by the engine s pushrod-operated overhead valve design.

What sets these rods apart is their **customized fitment and attention to detail**, including **precision-machined oil holes** for optimal lubrication, **carefully balanced weight distribution** to minimize vibration, and **reinforced small-end bearings** to withstand the rigors of aggressive throttle inputs and high RPM operation. The **small-end bearings** are typically supplied with the rods, often featuring **needle bearings or bushings** that are designed to reduce friction and extend component life, while the **big-end cap** is secured with **high-strength bolts** (often M10 or M12, depending on the application) to ensure a rigid, vibration-free connection to the crankshaft. These rods are not merely replacements but **performance upgrades**, allowing enthusiasts to push their A10-powered bikes to new limits while maintaining reliability.

For those restoring or modifying classic British bikes, these rods are a **must-have component** to achieve factory-spec accuracy or even exceed it with aftermarket tuning. They are compatible with a wide range of **A10-based engines**, including those from **BSA Gold Star, Triumph Bonneville, and Matchless G80**, making them a versatile choice for both street and track applications. Whether used in a **restomod project, a high-RPM drag bike, or a meticulously rebuilt classic**, the **BSA 67-1205 and 67-1160 right-hand A10 connecting rods** deliver the strength, precision, and heritage performance that British motorcycle enthusiasts demand. Proper installation requires **careful alignment, correct bearing selection, and torque specifications** to ensure longevity, but the result is a rod that not only meets but often surpasses the original specifications, embodying the perfect blend of tradition and modern engineering.

### **Pros and Cons of Buying a BSA 67-1205/67-1160 Right-Hand A10 Conrod**

The **BSA 67-1205** (650cc parallel twin) and **67-1160** (650cc single-cylinder) are classic British motorcycles known for their durability, mechanical simplicity, and nostalgic appeal. The **A10 conrod** (a common aftermarket upgrade) is a popular modification for the 650cc parallel twin models, particularly the BSA Gold Star. Below is a detailed analysis of the advantages and disadvantages of purchasing these bikes, including the A10 conrod, followed by a conclusion and recommendation.

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### **Pros of Buying a BSA 67-1205/67-1160 with an A10 Conrod**

1. **Classic British Engineering**

- BSA motorcycles are renowned for their robust, cast-iron construction and straightforward mechanical design. The **67-series** (introduced in the late 1960s) represents a refinement of BSA s pre-war and post-war engineering, offering a balance between simplicity and performance.

- The **650cc parallel twin** (1205) is particularly admired for its smooth power delivery, making it suitable for both touring and track use.

2. **Durability and Longevity**

- BSA engines are built to last, with many original examples still running after decades of use. The **A10 conrod** (a stronger aftermarket replacement for the stock conrod) further enhances reliability by reducing the risk of catastrophic failure.

- The **single-cylinder 67-1160** is even more durable, often favored by riders who prioritize simplicity and low maintenance over high performance.

3. **Cost-Effective Ownership**

- Parts for BSA motorcycles are widely available, and labor costs are generally lower than for modern bikes. The **A10 conrod** is an affordable upgrade ( 50- 100 depending on source) that significantly improves engine safety.

- Fuel efficiency is decent for its class, with the parallel twin averaging **40-50 mpg** and the single-cylinder around **50-60 mpg**.

4. **Modification Potential**

- BSA bikes are highly modifiable. The **A10 conrod** is just one example of an aftermarket upgrade that can be combined with other improvements (e.g., performance camshafts, modern fuel injection, or suspension upgrades).

- The **67-1205** can be tuned for better power (up to **60-70 bhp** with aggressive mods), while the **1160** remains a reliable workhorse for cruising or commuting.

5. **Nostalgic and Collectible Value**

- BSA motorcycles hold a strong cultural appeal, especially among vintage enthusiasts. Well-maintained examples can appreciate in value, particularly rare or restored models.

- The **Gold Star** (a variant of the 67-1205) is one of the most iconic BSA bikes, often sought after by collectors.

6. **Simplicity and Ease of Maintenance**

- The **single-cylinder 67-1160** is particularly easy to work on, with fewer components than the twin. Basic repairs (e.g., valve adjustments, piston replacement) can be done with minimal tools.

- The **A10 conrod** reduces the need for frequent conrod inspections, a common maintenance point on stock BSA twins.

7. **Reliability for Long-Distance Riding**

- Many BSA owners report trouble-free rides of **1,000 miles** on a single tank, making them suitable for touring. The **67-1205** s parallel twin is particularly stable at highway speeds.

- The **1160** is often preferred for long-distance riding due to its simplicity and low failure rate.

8. **Strong Community and Support**

- BSA enthusiasts form tight-knit communities, with forums (e.g., BSA Owners Club UK, BSA Forum USA) offering troubleshooting advice, part swaps, and restoration tips.

- Aftermarket support is robust, with companies like **A10 Engineering, BSA Performance, and Classic BSA** providing parts and upgrades.

---

### **Cons of Buying a BSA 67-1205/67-1160 with an A10 Conrod**

1. **High Maintenance Requirements**

- **Valve adjustments** (every 1,000 miles for the twin, less frequent for the single).

- **Big-end bearing checks** (critical after the A10 conrod is fitted, as it reduces stress on the crankshaft).

- **Chain and sprocket maintenance** (BSA chains stretch quickly and need frequent tensioning).

- **Fuel system cleaning** (carbs can clog, and modern fuels may require adjustments).

- The **single-cylinder 1160** is easier to maintain than the twin but still demands attention.

2. **Outdated Ergonomics and Comfort**

- **High handlebars** (can cause wrist strain on long rides).

- **Narrow seats** (uncomfortable for riders over 6 tall).

- **Poor wind protection** (exposed rider position leads to fatigue on highways).

- Upgrades like **modern saddles, windshields, and handlebar risers** can help, but the stock ergonomics remain dated.

3. **Poor Fuel Economy Compared to Modern Bikes**

- While decent for its era, the **67-1205** averages **40-50 mpg**, which is **significantly worse** than modern bikes (e.g., 60 mpg for a modern 600cc naked bike).

- The **1160 single** is slightly better ( 50-60 mpg) but still lacks the efficiency of modern engines.

4. **Limited Modern Safety Features**

- **ABS** (anti-lock braking is non-existent).

- **Traction control** (not applicable, but modern bikes offer slipper clutches).

- **Advanced suspension tuning** (stock forks are stiff and require frequent adjustment).

- Riders must rely on **modern add-ons** (e.g., aftermarket suspension, disc brakes) to improve safety.

5. **Noise and Emissions Concerns**

- The **parallel twin (1205)** is **loud**, often exceeding **90 dB** at highway speeds, which can be problematic in noise-sensitive areas.

- **Emissions compliance** is an issue in some regions. While the **1160 single** may pass modern standards with minor mods, the **1205 twin** often requires a **catalytic converter or EGR delete** to avoid legal issues.

- Some countries (e.g., California) have **restrictions on pre-catalytic bikes**, making registration difficult.

6. **Limited Power for Modern Riding Styles**

- The **stock 67-1205** produces ** 45 bhp**, which is **adequate but not impressive** by today s standards. While the **A10 conrod** improves reliability, it does not significantly increase power.

- **Aggressive tuning** (e.g., high-compression pistons, porting, supercharging) can boost power but increases maintenance complexity and cost.

- The **1160 single** is **underpowered** for modern highway speeds, with only ** 30 bhp** stock.

7. **Parts Availability and Costs**

- While BSA parts are **widely available**, **rare or obsolete components** (e.g., specific carburetors, seals, or electrical parts) can be **expensive or hard to find**.

- **Aftermarket support** is strong, but some upgrades (e.g., modern fuel injection) require **custom fabrication**, increasing costs.

- **Labor costs** for classic bikes can be high, as specialist mechanics charge premium rates for BSA work.

8. **Resale Value Depends on Condition**

- BSA bikes **depreciate quickly** unless they are **restored to showroom condition**. A well-maintained **67-1205** may hold value, but a neglected example will lose value rapidly.

- The **1160 single** is generally more valuable than the twin due to its simplicity and reliability.

9. **Legal and Insurance Challenges**

- **Insurance for classic bikes** can be **expensive** if the bike is used frequently. Some insurers classify them as **"high-risk"** due to age and mechanical complexity.

- **Roadworthiness tests (MOT in the UK)** can be **difficult to pass** if the bike is not well-maintained, especially for the **1205 twin** (emissions and noise issues).

- **Modifications (e.g., A10 conrod, exhaust changes)** may require **homologation** in some countries.

10. **Not Ideal for Beginners**

- BSA bikes are **

Details:

Was part numbered as 67-1205, the number molded in rod is 67-1160.polished and good used condition. Small end 18.9mm/ .745 in. Big end measured 46.84mm /1.844 in using vernier calipers ope, without bearing shells. Used A10 Conrod.

part #: 671205 prices

• $34.99-$145.00

specifications cyclevintagee:

• for models: A10
• brand: Bsa
• mpn: 67-1205
• unit type: Unit
• oe/oem part number: 67-1160
• universal fitment: No
• vintage part: Yes
• placement on vehicle: Right

general cyclevintagee:

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

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• started: March 7, 2026
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