How Much Do Dirt Bikes Weigh? 4 Factors To Examine

Due to compact frames, lightweight components, and the absence of some features, dirt motorcycles weigh less than any other motorcycle style. 

How much do dirt bikes weigh? The typical weight of this bike is roughly 215 pounds (98 kg). Averages for various categories, such as engine ccs, will vary.

We have compiled a list of some well-known models and their weights right here. You can also learn how this vehicle only weighs that much. 

How Much Do Dirt Bikes Weigh? 

In general, this type of motorbike is relatively lightweight, weighing around 215 pounds on average. However, some factors may affect this figure. 

To have a correct answer, you need to consider if your model is a motocross or a trail bike, whether it has a 2-stroke or 4-stroke engine, and if you want to discuss wet or dry weight.  

Motocross vs. Trail 

A motocross and a trail bike from the same brand will look similar. However, they work for two different riding styles. 

Longer rides in forests or mountains are more comfortable with a trail bike. As a result, it offers a softer suspension and a gearbox with a wide ratio.

On the other hand, a motocross bike must be swift around the course, able to absorb large jumps and accelerate rapidly out of bends.

Motocross motorcycles are often lighter than equivalent trail ones due to the various demands on the two models. 

For example, 450R and 450X are both from Honda and belong to the CRF series. 

However, the 450R motocross weighs 244 pounds, whereas the 450X trail one weighs 275 pounds. 

Motocross and trail bikes are different

Motocross and trail bikes are different 

2-stroke vs. 4-stroke

A 2-stroke dirt motorcycle is often lighter than a 4-stroke model of the same size because a 2-stroke engine has fewer moving components. 

A 2-stroke engine has no valves, camshafts, rockers, or cam chains, making it an ideal choice for a light engine. 

Let’s take the Yamaha YZ250 as an example. If you go for a 2-stroke engine, the weight will be 227 pounds. Yet, a 4-stroke engine weighs up to 234 pounds. 

You can learn more about the differences between 2-stroke vs. 4-stroke engines right here: 

Engine size 

The engine is one of the heaviest parts of a motorcycle. As a result, dirt bikes with bigger motors will weigh more than their smaller counterparts.

For example, the Yamaha YZ125 and Yamaha YZ250 are the same sizes. The YZ250 weighs 227 pounds, nearly 18 pounds more than the YZ125’s 209 pounds due to the 250’s bigger engine.

The engine is an important factor to consider

The engine is an important factor to consider 

Wet weight vs. Dry weight

Wet weight, also known as curb weight, refers to the weight of a motorcycle with all of the liquids it needs to function.

A motorcycle needs oil, gas, coolant, and water to run. These requirements may differ depending on the type of engine, the brand, and the motorcycle model. 

The dry weight refers to the weight of the bike alone, without any petrol, fuel, or other liquids that it needs to run. A dry motorcycle can’t run. 

Many brands and corporations realize that the dry value does not provide helpful information to their riders because they would never ride a dry motorcycle.

As a result, many of them have begun to mention the motorcycles’ wet weight rather than their dry one. 

So, while you’re out shopping for the ideal motorcycle for you and your requirements, look for the wet or curb weight.

If you’re in a shop, ask about the weight, as fluids might make your vehicle heavier. 

The wet value makes more sense

The wet value makes more sense


We’ve given a table below with a comprehensive list of dirt bike weights, including engine capacity and wet weight in pounds.

Bike Model  Engine Size (cc) Wet weight (pounds) 
Kawasaki KLX300 300 282
Honda CRF450X 450 275
Suzuki RMX450Z 450 272
Honda CRF250F 250 265
Yamaha YZ450FX 450 254
Honda CRF450RX 450 251
Honda CRF450-S 450 247
Kawasaki KX450X 250 246
Yamaha YZ250FX 250 245
Honda CRF450RWE 450 244
Kawasaki KX450 450 243
Honda CRF250RX 250 238
Kawasaki KX250 250 237
Yamaha YZ250F 250 234
Yamaha YZ250 250 227
Kawasaki KLX140R 140 205
Suzuki DR-Z125L 125 196
Honda CRF110F 110 170
Kawasaki KLX110R 110 168
Suzuki RM85 85 161
Yamaha YZ65 65 134
Suzuki DR-Z50 50 119
Honda CRF50F 50 110
Gas Gas MC50 50 97
KTM 50 SX 50 97
Yamaha PW50 50 90


Why Are Dirt Bikes Light?  

You may encounter a motocross racetrack with big whoops, jumps, or a single forest track covered with pebbles and tree stumps. 

They feature a few extras to make them lighter, such as lights, gauges, and kickstands. Some even have no electric starters at all.

The long-travel suspension and massive wheels, which enhance ground clearance and elevate the seat height, are another element that helps this vehicle in off-road riding and rugged terrain.

Shorter riders may have difficulty hitting the ground with both feet, but the lightness makes it simpler to keep their bike upright.

These bikes are lightweight

These bikes are lightweight

How To Make Your Bike Lighter? 

This bike is already lightweight, but if you want to make it lighter, the following tips can help: 

Use less gas

Do you need a tank full of gas if you’re rushing? Will you run out of gas before you reach the finish line? 

It would be best to calculate the length of the race and the distance you’ll be covering on the track, then fuel your bike accordingly.

Leaving out anything from a half-gallon to one gallon of gas will save you a lot of weight on the engine, so don’t carry it to the racetrack if you don’t really need it.

Change the exhaust

The most obvious and perhaps most frequent improvement or replacement you make to your motorcycles to make them lightweight is replacing the exhaust.

The material for this part is often stainless steel or aluminum. It contributes a great weight to your engine. Hence, if you replace this part, the total mass will reduce. 

Titanium is lighter than aluminum. This material may come in different forms, which can be thinner and more lightweight. 

Use titanium components

Lighter titanium is a good choice for screws, bolts, and nuts. It works nicely for durability and is also lightweight.

The only problem with this material is the price. You’ll have to consider the benefits and determine whether it’s an adjustment you can afford. 

Titanium is a fantastic choice for your system

Titanium is a fantastic choice for your system 

Use light plastics 

Your bike may still have the original plastics on it, or you’ve changed them for purely aesthetic reasons.

There are particular racing polymers available that are lightweight, minimalist, and aerodynamically created to prevent unnecessary weight.

They not only look great, but they also aid the design of your bike in reducing air friction that happens at full speed. 

See more:


Dirt motorcycles are lightweight to assist you in conquering rugged terrains. You can even make them lighter to enhance your experience. 

Hopefully, we have satisfactorily answered your question. If you need any further information, please feel free to ask. Thank you for reading! 


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