What Is The Top Speed Of The Yamaha YFZ450R? (The Answer Might Surprise You!)

In ATV Setups by Kevin

When it comes to ATVs and UTVs, Yamaha is at the top of its game. Long considered one of the best ATV brands, Yamaha is also well known for making one of the sportiest ATVs available on the market today: The YFZ450R. This ATV has everything that you look for in a sports model: Quick, nimble handling, very edgy and distinct aesthetic, and of course, a very powerful four-stroke engine. And talking about engines, there’s something that you are probably wondering about this ATV: what is the top speed of the Yamaha YFZ450R and related models? I decided to do some research to know the answer.

And the answer is that the Yamaha YFZ450R will do up to 75 MPH on a straight line without the speed limiter on. There are also other factors that will affect the top speed, such as the tires, suspension shocks, the type of gas being used. Also, Yamaha makes a kids version of this ATV called the YFZ50. This model has a top speed of about 18 MPH after removing the rev limiter. Without removing the limiter, the YFZ50 will be slow as a turtle.

In my opinion, 75 MPH is quite fast for a 4-wheeler and I personally wouldn’t want any more than that since I don’t think it would be safe to ride at that speeds, But there are some people that are going to disagree with me. If you are interested in tips on how to make your YFZ faster, then you should check below! Also, I provide the top speeds of related models, such as the Raptor 700.

Top Speed Of Yamaha YFZ450R

As I said above, the top speed of a YFZ450R on a straight line is going to be around 75 MPH, but you may not achieve that if you try reaching that velocity in real life. This is because of several reasons.

First of all, there’s the chance that you YFZ has a speed limiter that will not let you reach top speeds. This is especially true if your ride starts displaying a check engine light after trying to reach the 60s. So if this happens, you are going to have to remove the speed limiter, which is located near the clutch cable mount near the back part of the engine.

Also, another reason why you might not be achieving top speeds is because of things like the tires and gas being used on the quad. If you are going to be trying to reach the 70s, then make sure your quad has new high-performance tires, especially if the current ones are worn out and the grooves are almost flat. Using old tires has the disadvantage of not gripping the road as well plus they are also dangerous since they are at an increased risk of bursting, so make sure your tires are in good shape before trying to reach top speeds.

YFZ450R Vs YFZ450R SE: Is There A Difference In Top Speeds Between These 2 Models?

Some of you arrived at this article looking for the top speed of the YFZ450R SE, and let me tell you that the top speed of that model is only a few MPH higher than the normal YFZ450R. The SE part of that quad’s name stands for special edition, and Yamaha differentiated it from the normal 450R by upgrading the clutch, adding some aggressive bodywork to improve aerodynamics, and stiffened up the suspension, among other things.

But aside from those changes, the SE and the 450R have pretty much the same top speeds. The SE edition will probably be slightly faster because of weight saving and improved aerodynamics, but it’s almost not noticeable though.

Top Speed Of Yamaha YFZ50 & How To Remove Rev-Limiter

The YFZ 50 is Yamaha’s kid’s version of the full-size 450R, without the rev limiter, this quad has been consistently clocked at 18 MPH. This pretty good for a 50cc engine, but most of you won’t be able to reach those speeds because of the rev limiter.

The rev-limiter is a safety feature that Yamaha added so that kids do not hurt themselves by overspeeding. It’s located in the front part of the ATV. Take the front place of the ATV off, and there should be a small square module attached to the ATV. Simply remove this so that you can reach top speeds. There’s also a video showing step-by-step instructions. If you are interested in watching it, click here.

How To Improve Your YFZ Speed

As I said above, I consider 70+ MPH to be more than enough for any ATV or UTV, but if you are interested in making your ride faster, then there are a few tips to speed it up, such as:

  • Replace Old Tires For New Ones: This is one of the most overlooked ways to speed up your ride. Old, worn-out tires can seriously slow down your quad because the groove is not going to grip the road as well, so it’s important to make a habit of checking the tread depth every so often to see if it’s not up to par anymore. I’m personally using a brand called ITP on my Raptor and I have been loving them so far, so if you are looking for an affordable set of sport ATV tires, then I would recommend these ones.
  • Install A Performance Air Filter: This is another way to speed up your ATV on a budget. Installing a new air filter can easily add 5 MPH to your quad’s speed, but you need to make sure you a decent filter and not just a knockoff one. I recommend GYTR high-flow filters which are made specifically for performance in mind. It shouldn’t cost you more than 80 dollars on a physical store and even less if you look for the filter in Amazon.
  • Try To Reduce Weight: This is pretty obvious but you will be surprised by the amount of speed that your ATV can gain if you just remove a few things. You should start by removing unnecessary plastics just as the fenders, which tend to be much heavier than what they look like. You can also reduce weight by replacing your wheels for lighter alloy ones and also by removing unnecessary attachments.

For a more comprehensive article on how to improve your ATVs speed, click here.

Related Top Speeds Of Other Models

If you are like me, then you probably own more than 1 quad. Aside from my YFZ, I also own a Raptor 700 and a TRX250. I have made more articles about the top speeds of several other models, so if you are interested in checking them out, here they are:

Yamaha Raptor Top Speed (All Trims) 

Honda TRX Top Speed (All Trims)