Understanding 700 cc Motorcycles and Their Speed Potential
The question "How fast does a 700 cc go?" is a common one for anyone looking to understand motorcycle performance. While there's no single, definitive answer that applies to every single 700 cc motorcycle ever made, we can dive deep into what this engine size typically means in terms of speed, along with the many factors that influence it.
What Does "700 cc" Actually Mean?
First, let's clarify what "700 cc" refers to. It stands for 700 cubic centimeters, which is the total displacement of the engine's cylinders. In simpler terms, it's a measure of the engine's size – how much volume the pistons move within the cylinders. A larger displacement generally means a more powerful engine, capable of producing more torque and horsepower.
The Horsepower Connection
Engine displacement is a primary driver of horsepower. Horsepower is the ultimate measure of an engine's power output and, consequently, its potential top speed and acceleration. A 700 cc engine typically falls into the mid-range category for motorcycles. It's a significant step up from smaller beginner bikes but not as extreme as the large-displacement sportbikes or cruisers.
Typical Top Speeds for 700 cc Motorcycles
For a well-maintained and stock 700 cc motorcycle, you can generally expect top speeds to range from approximately 110 mph to 130 mph. Some might even nudge a bit higher, perhaps touching 135 mph under ideal conditions. This is a broad range because, as we'll see, many variables come into play.
Factors Influencing a 700 cc Motorcycle's Speed
It's crucial to understand that the "700 cc" designation is just a starting point. The actual speed a motorcycle can achieve is influenced by a multitude of factors:
- Horsepower Output: This is the most direct determinant of speed. A 700 cc engine designed for sport performance might produce more horsepower than a 700 cc cruiser engine, even with the same displacement. Modern 700 cc engines can produce anywhere from 50 to 80+ horsepower, depending on their design and tuning.
- Weight of the Motorcycle: A lighter bike will accelerate faster and achieve a higher top speed with the same power output compared to a heavier one. Think of it like pushing a shopping cart versus a car – the lighter object is easier to move.
- Aerodynamics: The shape and design of the motorcycle's fairings (if any) play a massive role in how it cuts through the air. Sportbikes with full fairings are much more aerodynamic than naked bikes or cruisers, allowing them to reach higher speeds with less effort.
- Gearing: The transmission's gear ratios determine how the engine's power is delivered to the rear wheel. Different gearing setups can prioritize acceleration or top speed. A bike geared for higher top speed might feel less punchy off the line.
- Tire Grip and Condition: While not directly affecting top speed, good tire grip is essential for safely reaching and maintaining high speeds. Worn or improperly inflated tires can reduce performance and increase risk.
- Rider Position: A rider tucking in behind the windshield or fairing significantly reduces wind resistance, allowing for a higher top speed than an upright riding position.
- Environmental Conditions: Factors like wind speed and direction, altitude, and even road surface can impact a motorcycle's top speed. Riding into a strong headwind will drastically reduce how fast you can go.
- Engine Tuning and Modifications: Aftermarket exhaust systems, performance air filters, ECU remapping, and other engine modifications can increase horsepower and thus top speed.
- Maintenance: A well-maintained engine with fresh fluids, clean air filters, and proper adjustments will perform at its peak. A neglected engine will likely fall short of its potential.
Examples of 700 cc Motorcycles and Their Capabilities
To give you a better idea, let's consider a few examples of motorcycles that have historically or currently feature engines around the 700 cc mark:
- Yamaha MT-07 (or FZ-07): This popular naked sportbike typically has an engine around 689 cc. With its sporty tuning and relatively light weight, it's known for strong acceleration and can comfortably reach speeds in the 120-130 mph range.
- Honda NC750X: While its engine is technically 745 cc, it's often grouped with bikes in this general size category. This adventure-touring bike is designed more for versatility and fuel economy than outright speed. Its top speed is likely to be in the 110-120 mph range.
- Kawasaki Vulcan S: This cruiser has a 649 cc engine, but it's a good example of how a cruiser's design influences speed. Despite a smaller displacement than some 700s, its relaxed ergonomics and cruiser styling mean its top speed will likely be in the 100-115 mph range, prioritizing comfort over blistering speed.
As you can see, even with similar engine displacements, the intended purpose and design of the motorcycle lead to different performance envelopes.
Safety and Legality
It's essential to remember that exceeding posted speed limits is illegal and dangerous. The top speeds discussed here are for informational purposes and should only be achieved in controlled environments, such as a racetrack, with appropriate safety gear and training. Riding any motorcycle at its limit requires advanced skill and awareness.
Motorcycles in the 700 cc range are generally considered excellent all-around performers, offering a good balance of power for commuting, spirited riding, and even occasional touring without being overly intimidating for less experienced riders compared to liter-bikes (1000 cc and above).
Frequently Asked Questions about 700 cc Motorcycle Speed
How does engine size affect top speed?
Larger engine displacement (measured in cc) generally allows for more power (horsepower and torque). More power enables a motorcycle to overcome air resistance and friction more effectively, leading to a higher potential top speed.
Why do some 700 cc bikes go faster than others?
Several factors contribute to speed differences beyond just engine size. These include the motorcycle's overall weight, aerodynamic design (fairings), gearing ratios, rider position, and the specific horsepower output tuned into the engine. A sportbike will typically be faster than a cruiser of the same engine size due to these design differences.
Is a 700 cc motorcycle fast enough for highway speeds?
Yes, absolutely. A 700 cc motorcycle is more than capable of comfortably maintaining highway speeds. They offer ample power for safe merging, passing, and cruising at legal speeds.
What is the difference between cc and horsepower?
CC (cubic centimeters) measures the engine's displacement or size. Horsepower is a measure of the engine's power output – how much work it can do. While larger displacement often leads to more horsepower, it's not a direct one-to-one correlation; engine design and tuning play a significant role in how much horsepower a given displacement produces.
