Toyo Observe GSi-5 Review of 2024: Is It The Ideal Winter Tire?

Toyo Observe GSi-5

The growing variety of winter tire models has resulted in more choices than in the past. So, which one has the perfect performance and texture for winter? 

For me, it is the Observe GSi-5, a version from the famous manufacturer Toyo. 

To know more about this great tire, you should not skip the Toyo Observe GSi-5 review below. Not only do I provide the basic information, but I also deliver practical experiences through many tests under different conditions. 

All is to help you get the most comprehensive and accurate overview of Toyo Observe GSi-5. Let’s take a closer look at the article below to learn more!


  • Diameter: 23.2″
  • Width: 7.9″
  • Rim Range: 5.5-7″
  • Measured Rim: 6″
  • Tread Depth: 12/32″
  • Load Range: SL
  • Max Load: 1168 lbs
  • Max psi: 44 psi
  • Weight: 19 lbs
  • Revs/Mile: 894

Feature Highlights

Toyo Observe GSi-5 possesses some special structural features compared to conventional tire products. Below, I’ll go through some of the special functions you cannot ignore when reviewing this tire.

First Edge technology

Toyo Observe GSi-5 - 1.1

The tire tread system for snow will be much different to increase vehicle stability on the move. 

First, Edge technology will help the tire grooves operate at greater efficiency.

At the same time, First Edge enhancements provide reasonable protection for the product’s surface during operation.

The first edge is theoretically a set of grooves with a shallow square pattern. Usually, the grooves tend to go straight or follow a zigzag. 

But with this technology, the groove system will appear with more square blocks. These details have the function of enhancing omnidirectional traction. 

So, I felt the ability to grip slippery roads with high friction in this version. With the Toyo Observe GSi-5, my SUVs are free of tire vibration and wear.

Serrated rim 

The wheel along the tread block now has large biting edges that increase deep snow grip. 

Each rotation creates more force to help the tire sink deeper into the snow. The deeper the plug, the greater the ability to create friction and improve the tire’s grip. This serrated border plays a significant role when moving on snowy terrain.

Snow Claw Technology

Like many competitors, the Toyo Observe GSi-5 also features small extrusions at the bottom of the groove to increase grip when operating in deep snow. 

It is a sign of Snow Claw, a detail that helps us a lot in operating the car. 

Although not a newly launched technology, Snow Claw will be necessary if you want to move quickly on roads covered with snow and ice.

I tested this feature for several consecutive winter days in Madison and am confident with its performance.


Toyo Observe GSi-5 - 2

Multi-wave sipe is indispensable if you want to stay safe on the road in challenging snow and ice conditions. Each tire brand has different ways to increase and maintain the flexibility of its products. 

In Observe GSi-5, Toyo used the multi-wave sipe system to improve flexibility, and experts often use the “3D self-locking sipes” phrase to refer to this detail.

The nature of 3D self-locking sipes is also different from other sipes when not only following the traditional straight-cut design.

Instead, the manufacturer will cut more with an internal topology that allows the tread block.

Spider Sipe

Spider sipe is a collection of vertical and horizontal hexagonal sipes on the ribs of the tire. The overlap in the design of this technology makes it easy to think of a complex web of spiders. 

Swing Sipe

The manufacturers also have included Swing Sipe technology to further enhance the ability to grip for Toyo Observe GSi-5. It is easy to recognize this detail because their structure is often curved, running down the middle ribs.

Thereby, it increases the lateral grip, and even the overall grasp of the tire will significantly increase.

Micro-Bit Technology

It would be a mistake not to mention Micro-Bit technology, a significant step forward in creating a tire compound working on snow. 

Micro-Bit technology originates from crushed black walnut shell details inside the tire’s silicon-reinforced rubber compound. 

These small elements give the tire more roughness to optimize grip when traveling in complex snow and ice.

Test Drive

The information below will help you somewhat shape the ability of the Toyo Observe GSi-5 to operate on different surface conditions. 

I’ve used many terrain tests and done it many times to come up with the closest estimates. Through this, you can quickly get a proper judgment as to whether the tire is suitable for use or not. 

Dry Traction

Toyo Observe GSi-5 - 3

The Toyo Observe GSi-5’s dry surface movement performance is generally acceptable for users. 

We all know snow tires usually only work best on snowy surfaces or in most slippery conditions. But with Observe GSi-5, the tire’s zero traction still serves us well in basic mobility needs. 

The ribbed design in the middle of the tire ensures that the direction can run most stably on a straight line. 

Most importantly, the ribs also help improve the traction, enhanced traction, and the tire’s stability.

Meanwhile, the groove mechanism will remove obstacles on the road. Not only when moving fast, but even when you operate the car at average speed, obstacles are also dangerous agents. 

To guarantee the safety of users, Toyo has taken advantage of the existing system of trenches to conduct water to remove soil and rock on the road. 

The grip-enhancing compound also contributes significantly to the performance that was not so outstanding on this product. 

After several trips on flat roads and highways, I draw simple conclusions about the tire’s dry performance. The grip isn’t unique, but it’s not too bad either. 

The acceleration of the Toyo Observe GSi-5 is not good when the traction is unstable. 

Finally, the stability on the move is quite good, and you can be confident that the car can perform quite well when equipped with this quality tire model.

Wet Grip

Toyo Observe GSi-5 - 4

There’s not much of a difference between wet roads and snowy surfaces at all. 

Even in many cases, traveling in snowy areas causes us to face damp and flooded roads because of melting snow. 

So the excellent snow performance of the Toyo Observe GSi-5 also improves the tire’s safety on wet surfaces.

The most noticeable improvement is the appearance of carbonic powder absorbing in the tread fibers. The essence of this powder is from bamboo charcoal, an outstanding material with excellent moisture absorption.

It helps to improve the ability of the tire surface to absorb moisture, thereby maximizing travel performance.

Complex grooves moving along the tire surface will act as drainage grooves to prevent hydrolysis.


Controlling a vehicle on the snow surface is tricky, but with the Toyo Observe GSi-5, you can have peace of mind. Tire technologies have contributed to providing stable control through increased agility. 

For example, the multi-wave sipe can significantly increase flexibility by allowing the tread to flex more. This mechanism also controls and ensures the curvature within the allowable level to avoid causing tire vibration. 


With Toyo Observe GSi-5, you don’t have to worry about the vehicle skidding when braking or the braking distance being too long. In addition to control, the excellent grip of the tire is also a quality factor that makes stopping the car safer.

In this version, the spider sipe stretches in many different directions providing the ability to increase grip in all orders. 

When the grip is more comprehensively enhanced, no matter which direction you move the car, the performance results will be the same. 

Plus, the swing sipe that provides the edges with a firm grip on the thick snow surface in multiple directions is an excellent tire protection mechanism.

Check this video now to get some more virtual reviews:

Is It Worth Your Money?

Toyo Observe GSi-5 is one of the best choices for us to be able to move in snowy terrain significantly when the thickness of the snow layer increases. 

The product is also suitable for moving through wet areas with a lot of rain or snow melt. If you don’t care too much about dry performance, this is a worthy choice for us to spend money to own and use.

After using it for a while, I suggest that this version is completely safe and worth testing in the winter.

With a mid-range price, the Toyo Observe GSi-5 is always one of the candidates with the perfect performance among the ones I have tested.

Pros And Cons Of Toyo Observe Gsi-5 


  • Outstanding snow performance
  • Many modern technologies
  • High traction
  • Stable control
  • Good wet performance


  • Dry performance is not as expected.


Through the article, I have analyzed the specific pros and cons of Toyo Observe GSi-5 and clearly answered your long-standing questions about this version.

Hopefully, this Toyo Observe GSi-5 review has given you useful information, making it easier to pick the suitable product for your needs.

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