S&S 124 Vs. Ultima 127

So, you’re thinking about upgrading your motorcycle engine, huh? Well, let me tell you, the battle between the S&S 124 and the Ultima 127 is a hot one! These two engines are known for their power and performance, but which one is right for you? In this article, we’ll dive into the details of the S&S 124 and the Ultima 127, so you can make an informed decision and choose the best engine for your ride.

When it comes to the S&S 124, you can expect a tried and true powerplant that delivers reliable performance. This American-made engine has been around for years, and it has built a solid reputation among motorcycle enthusiasts. With 124 cubic inches of displacement, this engine packs a punch and delivers plenty of torque for a thrilling ride. We’ll delve deeper into the specifics of the S&S 124 in the following sections.

Now, let’s talk about the Ultima 127. This engine is relatively newer to the market, but don’t let that fool you – it’s making waves in the motorcycle community. With a larger displacement of 127 cubic inches, this engine offers even more power and performance than its S&S counterpart. If you’re someone who craves that extra oomph, the Ultima 127 may be the perfect choice for you. In the upcoming sections, we’ll explore the features and benefits of the Ultima 127 in greater detail.

By the end of this article, you’ll have a clear understanding of the differences between the S&S 124 and the Ultima 127. We’ll cover factors such as power, reliability, cost, and more to help you make an informed decision. So, let’s jump right in and discover which engine is the ultimate powerhouse for your motorcycle.

Overview of S&S 124 and Ultima 127

When it comes to motorcycle engines, two popular options that riders often consider are the S&S 124 and the Ultima 127. Both engines have their unique features and qualities that make them appealing to motorcycle enthusiasts. In this article, we will provide an overview of these engines, comparing them in terms of engine performance, reliability and durability, fuel efficiency, compatibility and fitment, cost and value, aftermarket support and customization options, rider experience and feedback, as well as warranty and customer support. By the end of this comparison, you will have a better understanding of which engine suits your specific needs and preferences.

Introduction to S&S 124

The S&S 124 is a high-performance V-twin engine known for its power and reliability. With a displacement of 124 cubic inches, this engine delivers impressive performance on the road. It is designed and manufactured by S&S Cycle, a renowned name in the motorcycle industry. S&S Cycle has a long-standing reputation for producing top-quality engines, and the S&S 124 is no exception. Whether you’re a street rider or a motorcycle enthusiast looking for a powerful engine, the S&S 124 is worth considering.

Introduction to Ultima 127

The Ultima 127 is another powerhouse in the motorcycle world. With a displacement of 127 cubic inches, this engine offers significant power and performance. Manufactured by Ultima Products, the Ultima 127 is designed to deliver outstanding torque, acceleration, and overall engine performance. Like the S&S 124, the Ultima 127 is a popular choice among motorcycle riders who crave power and reliability.

Engine Performance

Power output comparison

When comparing the power output of the S&S 124 and the Ultima 127, there are slight differences to consider. The S&S 124 produces an impressive amount of power, with many riders reporting an exhilarating riding experience. On the other hand, the Ultima 127 offers slightly more power, giving riders an extra boost on the road. Ultimately, the power output comparison between these two engines will depend on individual preferences and riding styles.

Torque comparison

Torque is an essential factor when it comes to motorcycle engines, as it directly affects acceleration and overall performance. In terms of torque, both the S&S 124 and the Ultima 127 deliver exceptional numbers. However, the Ultima 127 edges slightly ahead, providing riders with a noticeable increase in torque, especially when it comes to low-end power. This can be advantageous for riders who enjoy quick acceleration and effortless maneuvering in various riding conditions.

Acceleration capabilities

When it comes to acceleration, both the S&S 124 and the Ultima 127 demonstrate exceptional capabilities. Riders of the S&S 124 often praise its smooth and consistent acceleration, allowing for effortless overtaking and satisfying speed bursts. Similarly, the Ultima 127 delivers impressive acceleration, allowing riders to quickly reach high speeds with ease. Whether you prefer the steady acceleration of the S&S 124 or the rapid acceleration of the Ultima 127, both engines provide exciting experiences on the road.

SS 124 Vs. Ultima 127

Reliability and Durability

Construction and materials

Both the S&S 124 and the Ultima 127 are constructed using high-quality materials and built to withstand the rigors of motorcycle riding. The S&S 124 features a robust construction, utilizing durable components that are designed to last. Similarly, the Ultima 127 is built with durability in mind, incorporating strong and reliable materials. Riders can trust that both engines will endure the demands of long rides and varied riding conditions.

Longevity and maintenance

One crucial aspect of engine reliability is longevity and ease of maintenance. The S&S 124 has a long-standing reputation for its durability and longevity, often requiring minimal maintenance to keep it running smoothly. Likewise, the Ultima 127 is known for its longevity, allowing riders to clock in many miles without major issues. Routine maintenance, such as regular oil changes and inspections, is essential for both engines to ensure their longevity and optimal performance.

Testing and quality control

Both S&S Cycle and Ultima Products prioritize testing and quality control during the manufacturing process. These companies have strict quality assurance protocols in place to ensure that each engine meets the highest standards. By employing thorough testing and quality control measures, both S&S Cycle and Ultima Products demonstrate their commitment to producing reliable and high-performance engines.

Fuel Efficiency

Efficiency comparison

When it comes to fuel efficiency, both the S&S 124 and the Ultima 127 have their pros and cons. The S&S 124 is known to offer decent fuel efficiency for its power output, allowing riders to enjoy extended rides without frequent visits to the gas station. However, the Ultima 127 falls slightly behind in terms of fuel efficiency, consuming slightly more fuel due to its higher power output. While fuel efficiency is an essential consideration for some riders, others may prioritize power and performance over fuel consumption rates.

Fuel consumption rates

In terms of fuel consumption rates, the S&S 124 and the Ultima 127 differ slightly. The S&S 124 is known to deliver respectable fuel consumption rates, allowing riders to enjoy longer rides without worrying about frequent refueling. The Ultima 127, with its increased power output, may consume slightly more fuel, but the difference is generally negligible. Ultimately, individual riding habits and preferences will play a significant role in the fuel consumption rates of these engines.

Emission levels

Reducing emissions and promoting environmental sustainability is a priority in the modern era. When comparing emissions levels, both the S&S 124 and the Ultima 127 meet the necessary emissions standards required by regulatory bodies. Both engines are designed to minimize environmental impact while still providing riders with the power and performance they desire. Riders can enjoy their rides knowing that these engines are built with conscious consideration for the environment.

SS 124 Vs. Ultima 127

Compatibility and Fitment

Motorcycle models compatible with S&S 124

The S&S 124 is compatible with a wide range of motorcycle models, making it a versatile choice for riders. Its flexible fitment options allow riders to install the engine on various Harley-Davidson models, including Softail, Dyna, and Touring motorcycles. Additionally, S&S Cycle provides detailed instructions and support to ensure a smooth installation process.

Motorcycle models compatible with Ultima 127

Similar to the S&S 124, the Ultima 127 is also compatible with several motorcycle models. Riders can install the Ultima 127 engine in a variety of Harley-Davidson models, providing them with options to fit their specific bike. Ultima Products offers guidance and support to assist riders in achieving a successful fitment.

Installation and fitment challenges

While both engines have a wide range of compatibility with motorcycle models, it’s essential to consider potential challenges during installation and fitment. Depending on the motorcycle model and its specific design, some modifications or adjustments may be necessary for a proper fit. Riders should consult with professionals or refer to the manufacturer’s instructions to ensure a seamless installation process.

Cost and Value

Price comparison

Cost is undoubtedly a significant factor when deciding between the S&S 124 and the Ultima 127. The S&S 124 is known to be slightly more expensive than the Ultima 127. This price difference can be attributed to the reputation and quality associated with the S&S brand. However, it’s important to consider the overall value and long-term benefits that each engine provides, rather than solely focusing on the initial purchase price.

Long-term cost savings

While the initial purchase price of the S&S 124 may be higher, it often delivers long-term cost savings. The engine’s reliability and durability can significantly reduce maintenance and repair costs over time. Additionally, the increased fuel efficiency of the S&S 124 allows riders to save on fuel expenses during extended rides. On the other hand, the Ultima 127 offers a more affordable initial investment, but it may necessitate slightly higher maintenance costs in the long run.

Resale value

Another aspect to consider is the resale value of your motorcycle. While both engines hold their value relatively well, the S&S 124 tends to retain its resale value better than the Ultima 127. This can be attributed to the reputation and popularity of the S&S brand, as well as the perceived higher quality associated with their engines. Riders who prioritize resale value and potential future upgrades may find the S&S 124 to be a favorable option.

Aftermarket Support and Customizations

Availability of aftermarket parts for S&S 124

As a well-established brand, S&S Cycle benefits from a wide availability of aftermarket parts. Riders can easily find a variety of performance upgrades, accessories, and customizations specifically designed for the S&S 124. This extensive aftermarket support allows riders to personalize their riding experience and enhance the performance of their engine.

Availability of aftermarket parts for Ultima 127

Similarly, the Ultima 127 benefits from a range of aftermarket parts and accessories. While the selection may not be as extensive as that for the S&S 124, riders can still find upgrades and customizations that cater to their specific needs. Ultima Products provides guidance to riders seeking aftermarket parts, ensuring a seamless customization process.

Customization options

Both the S&S 124 and the Ultima 127 offer riders ample opportunities for customization. From exhaust systems to air intake upgrades, riders can enhance the performance and aesthetics of their engines. Whether you prefer a slick and aggressive look or seek maximum power gains, the customization options available for both engines enable riders to create their own unique motorcycles.

Rider Experience and Feedback

Reviews and opinions from S&S 124 owners

Owners of the S&S 124 frequently praise its power and reliability. Many riders report a satisfying and exhilarating riding experience, feeling confident in their engine’s performance. The smooth acceleration, strong torque, and overall power output of the S&S 124 contribute to positive rider experiences.

Reviews and opinions from Ultima 127 owners

Similarly, owners of the Ultima 127 express satisfaction with their engine’s performance. Riders appreciate the increased power output and torque, enabling them to conquer various riding conditions. The Ultima 127 receives positive feedback for its reliable performance and overall riding experience.

Comparisons based on rider feedback

When comparing rider feedback for both engines, it becomes apparent that both the S&S 124 and the Ultima 127 offer positive experiences. While individual preferences and riding styles may influence the choice between the two engines, it is clear that both provide riders with the power, reliability, and exhilaration they seek in a performance engine.

Warranty and Customer Support

Warranty coverage for S&S 124

S&S Cycle provides warranty coverage for the S&S 124, ensuring peace of mind for riders. The specific terms and conditions of the warranty may vary, so it’s crucial for owners to familiarize themselves with the warranty details upon purchase. S&S Cycle also offers customer support to address any inquiries or concerns riders may have regarding their engine.

Warranty coverage for Ultima 127

Ultima Products also provides warranty coverage for the Ultima 127, guaranteeing the quality and performance of the engine. Owners should review the warranty terms to understand their coverage. In addition, Ultima Products offers customer support to assist riders with any questions or issues they may encounter.

Quality of customer support

Both S&S Cycle and Ultima Products prioritize customer support and are known for their reliable service. Whether you have technical questions or require assistance with installation or maintenance, both companies are committed to providing timely and helpful support. The quality of customer support underscores the overall satisfaction and trust you can expect when dealing with S&S Cycle or Ultima Products.


In conclusion, the decision between the S&S 124 and the Ultima 127 depends on your specific needs and preferences as a rider. Both engines offer exceptional power, reliability, and overall performance. When considering engine performance, the Ultima 127 demonstrates a slight advantage in terms of power output, torque, and acceleration capabilities. However, the S&S 124 offers excellent reliability, durability, and fuel efficiency. The compatibility and fitment options for both engines provide flexibility when installing them on various motorcycle models. Costs and value differ, with the S&S 124 offering long-term cost savings and a better resale value, while the Ultima 127 provides an affordable initial investment. Both engines benefit from aftermarket support and customization options, allowing riders to personalize their motorcycle. Rider experiences and feedback for both engines are predominantly positive, reflecting the power and satisfaction they deliver. Warranty coverage and customer support are reliable for both engines, ensuring peace of mind for owners. Overall, understanding your specific needs and preferences will guide you in making the best choice between the S&S 124 and the Ultima 127.

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