"Apparently, 180 size tires may fit -------".
The development started from this word of the wheel designer. In Active, the development section and the planning section, the people in charge of the two departments work together to promote product development, and this time is no exception.

When I actually measure it, the expectation is correct. Normally, it is physically impossible to install the 550 size in the 250cc class, but it turned out that this vehicle can be installed without changing the chain line or rear fender.
Therefore, apart from the race size, which is the core of GALE SPEED, "extreme sports performance", we decided to explore the possibility of this impactful custom wheel "550 size".

"The technology cultivated in racing can be applied on the street."
The brand we think of as GALE SPEED ​​is a "racing wheel that can compete in the world," and we have refined our technology with this concept as an absolute requirement.

Among them, this 550 size is quite different. At the time of the announcement, we received the opinion that it was not like GALE SPEED.
And, of course, there were dissenting opinions within the company from the examination stage. Products that only look like are not allowed. In order to prove that we can take advantage of driving performance, we decided to carry out mounting tests with settings.

"The overall impression is that it has a solid sense of stability.
Compared to the normal size, there is a sense of security in handling, and you can enjoy the ride as if you were depositing your weight and banking. From the change in rear size, the rear There was something wrong with the front tires that were changed to 120 size according to the above, but it was solved by a simple setting change of the rear shock (described later). It was finished as an original wheel that can fully enjoy sports driving. "

"If the wheel or tire size changes, the body posture will inevitably change, so it is necessary to improve this before enjoying the ride.

Since the size of the wheel this time is significantly different from the genuine one, it naturally feels strange if the setting is as it is. Normally, the suspension setting adjusts the body posture by adjusting the protrusion amount of the front fork and the preload, but I felt that the rear of the ZX-25R was low (the body posture was rearward). If the body posture is slightly backward, there will be a momentary delay in the body tilting and the steering wheel notch when cornering, and it will not be synchronized.

The genuine rear shock of ZX-25R is a cam type adjustment. First of all, tightening this with one click (applying preload) improved the body posture and approached the setting that can draw out the vehicle potential.

・ Even with a wide size, the Gail Speed ​​Wheel is lighter than the genuine one.
・ The Gail Speed ​​Wheel has a better weight balance (the rim is lighter and the turning performance is higher).

From the above, you can enjoy a light ride even if you increase the size. In addition, I was convinced that the tires would be more grounded and the grip would be improved, so I could set up a setting where I could enjoy the fun of the street.

If you have a clear purpose such as finer adjustment or circuit driving, you can maximize the performance by combining it with Hyper Pro products that have a lineup of springs and rear shocks. "