TRIUMPH BSA 71-2350 Rocker Box Set Shafts 71-2351

( Brand: Triumph Bsa ), ( Manufacturer Part Number: 71-2350 ), ( Part Type: Box Shaft )

Review TRIUMPH BSA Rocker Box Set Part Rockers And Shafts fits 650 1972

The **1972 Triumph BSA 650 Rocker Box Set (Part Numbers 71-2350 and 71-2351)** represents a meticulously crafted, high-performance upgrade designed to restore or enhance the suspension geometry and handling of one of the most iconic twin-cylinder motorcycles ever built. Originally produced by Triumph Engineering Limited in collaboration with BSA (Birmingham Small Arms Company), this classic 650cc parallel-twin was celebrated for its rugged reliability, timeless styling, and adaptability to both road and light off-road use. The rocker box set comprising the **71-2350 rocker box** and **71-2351 rocker shafts** is a critical component for maintaining proper suspension articulation, ensuring smooth wheel travel, and preserving the bike s original intent while allowing for subtle modifications to suit modern preferences.

Crafted from durable, heat-treated steel, the **71-2350 rocker box** is a precision-machined assembly that houses the pivot points for the rear suspension, allowing the swingarm to move freely while transferring the bike s weight and forces to the shock absorbers. Its robust construction is designed to withstand the stresses of daily riding, whether on twisty roads or rough terrain, while minimizing wear over time. The rocker box s design is both functional and nostalgic, paying homage to the mechanical simplicity that defined mid-century motorcycle engineering. When paired with the **71-2351 rocker shafts**, these components work in tandem to create a suspension linkage that is both responsive and durable, ensuring that the rear wheel remains stable and the shocks operate efficiently throughout their full range of motion.

The **71-2351 rocker shafts** are the critical link between the rocker box and the swingarm, featuring a sleek, slightly tapered design that reduces friction and allows for smooth articulation. These shafts are often made from hardened steel or chrome-molybdenum alloy, providing the necessary strength to handle the forces generated during cornering, braking, and acceleration. Their precise machining ensures minimal play, which is essential for maintaining consistent suspension performance and preventing premature wear on the bushings or pivot points. For riders seeking to fine-tune their Triumph s handling, these rocker shafts can also be swapped for aftermarket alternatives to adjust the suspension s geometry, such as increasing or decreasing the rear wheel travel or altering the swingarm s pivot angle for a more aggressive or compliant ride feel.

Beyond their mechanical function, the **1972 Triumph BSA 650 Rocker Box Set** holds significant historical value for enthusiasts who appreciate the craftsmanship of the era. The bike itself was a product of its time, blending British engineering ingenuity with a design that remains instantly recognizable a broad, angular fuel tank, a distinctive front fork guard, and a twin-exhaust system that growled with character. Upgrading or restoring the suspension with these original parts not only preserves the bike s authenticity but also ensures that it rides with the same confidence and poise as it did when it first rolled off the assembly line. Whether used in a fully restored classic or as part of a modernized project bike, this rocker box set is a testament to the enduring legacy of the Triumph BSA 650, offering riders a chance to experience the perfect marriage of vintage charm and mechanical precision.

For those undertaking a restoration or modification project, sourcing an authentic **71-2350/71-2351 set** is essential for maintaining the bike s original character while ensuring long-term reliability. These parts are often sought after by collectors and builders who prioritize authenticity, and while they may require careful inspection for wear or damage, a properly maintained set can last for decades with minimal maintenance. When installed correctly, this rocker box set not only enhances the Triumph s ride quality but also contributes to its overall aesthetic appeal, reinforcing the bike s status as a true classic. Whether cruising along a coastal highway or tackling a winding country road, the **1972 Triumph BSA 650 Rocker Box Set** ensures that this legendary machine continues to deliver the effortless power and timeless appeal that have made it a favorite among motorcycle enthusiasts for over half a century.

### Pros and Cons of Buying a Triumph BSA 71-2350 650cc Rocker Box Set (71-2351 Rockers and Shafts) from 1972

1. **Classic and Rare Design** The Triumph BSA 650cc engine, particularly from the early 1970s, is a well-regarded classic motorcycle design. The rocker box set (71-2350) and rockers/shafts (71-2351) are part of a proven mechanical layout that has stood the test of time. Owning original or restored components from this era adds historical value and authenticity to a project bike.

2. **Proven Reliability** The BSA/Triumph 650 engine was known for its durability and straightforward mechanics. The rocker box and shaft assembly were designed for longevity, and many of these components have been rebuilt and reused in restored motorcycles. If sourced from a reputable seller, they may have been properly maintained.

3. **Ease of Maintenance and Repairs** The design of the rocker box and shaft assembly is relatively simple compared to modern high-performance engines. This makes it easier for enthusiasts to perform their own repairs, rebuilds, or modifications. Parts are widely available through specialty shops and online marketplaces.

4. **Restoration Potential** If you re working on a project bike, these components can be part of a full restoration. The rocker box set and shafts are critical for valve train operation, and sourcing original or high-quality aftermarket replacements ensures proper function. Restoring a classic motorcycle with period-correct parts can be deeply rewarding.

5. **Community and Enthusiast Appeal** The Triumph BSA 650 is a beloved classic among motorcycle enthusiasts. Owning or restoring parts from this era can connect you with a community of like-minded riders who appreciate vintage motorcycles. This can provide support, advice, and camaraderie during your project.

6. **Potential for Customization** While the original components are classic, there is room for customization. For example, you might upgrade other parts of the bike while keeping the rocker box and shafts for authenticity. Some enthusiasts also modify the valve train for performance, though this requires careful consideration of the engine s original design.

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1. **Age and Wear** Components from 1972 are over 50 years old. Unless they have been properly stored or maintained, they may show signs of wear, corrosion, or degradation. Rust, worn bearings, or seized parts are common issues with older mechanical components. Thorough inspection is essential before purchase.

2. **Condition Uncertainty** Without a detailed inspection or provenance, it can be difficult to determine the true condition of the rocker box set and shafts. Some sellers may not disclose issues like cracked rocker boxes, worn camshaft bearings, or misaligned shafts. This can lead to unexpected repair costs.

3. **Limited Availability of Original Parts** While the BSA/Triumph 650 parts ecosystem is robust, finding exact original components can be challenging. Some rocker box sets or shafts may be rare, and prices could be inflated due to their age or scarcity. This could make the purchase less cost-effective compared to aftermarket alternatives.

4. **Compatibility Concerns** If you re not restoring a complete 1972 Triumph BSA 650, you ll need to ensure these parts fit your specific bike model and year. Minor variations in engine castings or mounting points could require additional modifications or adapters, adding complexity to the project.

5. **Cost of Restoration** Even if the rocker box set and shafts are in decent condition, restoring the entire engine or motorcycle may require additional parts, labor, or expertise. Costs can quickly add up, especially if you re not experienced with classic motorcycle mechanics. Budgeting for unexpected expenses is wise.

6. **Modern Alternatives** There are aftermarket rocker box sets and shafts available that are either rebuilt or remanufactured versions of the original components. These alternatives may offer better reliability, warranties, or performance at a lower cost. For example, companies like **Triumph Performance Parts** or **BSA/Triumph specialists** often provide updated or rebuilt kits.

7. **Environmental and Safety Risks** Older mechanical parts may contain materials or coatings that are no longer safe or environmentally friendly (e.g., lead-based paints, asbestos in older gaskets). Handling these parts may require caution, and disposal could be restricted in some regions.

8. **Time-Consuming Project** Restoring or integrating these components into a bike can be a time-intensive process. If you re not committed to the project long-term, the effort may outweigh the rewards.

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Buying a 1972 Triumph BSA 71-2350 rocker box set (71-2351 rockers and shafts) can be a rewarding experience for enthusiasts who appreciate classic motorcycles and are willing to invest time and effort into restoration. The components offer historical authenticity, reliability, and a connection to motorcycle heritage. However, the potential for wear, uncertainty in condition, and the cost of restoration must be carefully considered.

If your primary goal is functionality and reliability without the hassle of restoring vintage parts, aftermarket rebuilt kits may be a more practical choice. On the other hand, if you re passionate about preserving or restoring a classic motorcycle and have the skills or resources to handle the challenges, these original components can be a valuable addition to your project.

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- Purchase from a reputable seller with a clear history of the parts. Request detailed photos, inspection reports, or proof of prior maintenance.

- Budget for additional restoration work, including engine rebuilds, valve adjustments, and testing.

- Consider consulting a mechanic experienced with vintage BSA/Triumph engines to assess the components before purchase.

- Opt for a **rebuilt or remanufactured rocker box set and shafts** from a trusted aftermarket supplier. These alternatives often come with warranties and are less likely to require extensive repairs.

- Ensure compatibility with your specific bike model and any modifications you plan to make.

- Start with a **project bike that already has a partially restored engine** and gradually introduce these components as you gain confidence in your mechanical skills.

- Join online forums (e.g., BSA/Triumph restoration groups) to seek advice from experienced restorers before making a purchase.

Ultimately, the decision depends on your priorities whether you value the nostalgia and challenge of working with original vintage parts or prefer the practicality and peace of mind that comes with modern alternatives.

Details:

THIES WILL FIT THE LATER 650s 1971 AND 73'S. Rays Brit bits and more .:: Listings By Rage biz. TRIUMPH 650 1972 ROCKER BOX SET PART # 71-2350 71-2351 WITH ROCKERS AND SHAFTS GOOD COVERS, ONE CRACK ON THE EXHAUST BUT WILL NOT HURT ANYTHING, NO MISSING FINS.

part #: 712350 prices

• $30.00-$99.99

specifications cyclevintagee:

• for models: 650
• for makes: Triumph
• for years: 1972
• brand: Triumph Bsa
• mpn: 71-2350
• part type: Box Shaft

returns cyclevintagee:

• policy: No Returns

shipping cyclevintagee:

• transit: 4-8 Days
• class: Expedited
• service: USPS Priority Mail Medium Flat Rate Box
• carrier: USPS
• cost: $22.95
• type: Calculated

offer cyclevintagee:

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

seller cyclevintagee:

• city: Peck, Idaho
• # reviews: 7443
• rating: 100.0%

payments cyclevintagee:

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

general cyclevintagee:

• condition: Used
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