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Product Detail
Specification:
Full Exhaust System
Volume: 93db JMCA certified product: Available
Built-in catalyzer: Available
Oil filter: Available
Oil drain: Available
Center stand: -
Stock & Pillion Step: Available
Volume: 93db JMCA certified product: Available
Built-in catalyzer: Available
Oil filter: Available
Oil drain: Available
Center stand: -
Stock & Pillion Step: Available
[Description]
The new lineup of JMCA certified models from WR's, a company that knows all about the middle class.
The exhaust system has been changed from the conventional 4-1 type to the newly designed 4-2-1 type, which is a high-end model that surpasses the conventional superbike full exhaust system.
Completely new design developed from a new viewpoint by carefully selecting the collecting part and pipe length according to each model.
You will be satisfied with the power feel that you can feel from the low speed torque by taking full advantage of the characteristics of the 4-2-1 system, not to mention the form and the texture of a class higher.
The silencer has a straight structure.Newly designed model with a sense of power from the accelerator response while also responding to aging.
Please enjoy "WR'sPOWER" with more peace of mind.
Developer's Long Comment
Following CB400SF / SB, the second stage is XJR400.
This model has also been used for a long time as a collective type "4-1", but WR's has adopted a collective type "4-2-1" as a JMCA approved model.
The same method as the stock is adopted to assemble No.1, No.2, No.3 and No.4 first.
The type which assembles No.1, No.4, No.2, and No.3 first which is said to be easy to produce the torque of the middle and low speed was also tested, but the characteristic and the way of producing the torque of the middle and low speed were better in the assembling method which is the same as stock, and this one was adopted.
This result was surprising because common sense applies to air-cooled engines in a relatively orthodox way, but as soon as WR's tested the engine, it reminded them once again that this is a "perfected air-cooled engine" that is the result of YAMAHA's many years of expertise in air-cooled engines.
First of all, users of this bike will of course be aware of this.Easy to ride anyway!
Handling is very straight and sharp.Compared to the original XJR400, the new XJR400 has not only new brakes and suspension, but also a much lighter unsprung weight, making it suitable for a wide range of riding conditions.
The concept of this bike is "easy to ride and fast".
First of all, in the case of the air-cooled engine, "engine fatigue" is a concern in the summer or when riding for a long time.With this in mind, WR's spent a lot of time to increase the power in the normal rpm range and to create a sense of response when the accelerator is opened.
The point is the part "2" of 4-2-1 in the exhaust part, the so-called center pipe.
WR's repeated the test by changing the length and the thickness of this part, and tried the dimensions which WR's does not usually do in the development.
WR's would have been able to accumulate more know-how and find the best size by this test.
The performance at high rpm depends on the exhaust pipe. This product is the same size as WR's "4-1" collecting section.
The layout is changed because of the "4-2-1" type, but the data that we have refined in the development of the "4-1" type is useful.
The silencer is specially developed to make the best use of this characteristic and the sound quality so that you can feel the unique bass sound of the air-cooled engine.
In addition, the silencer part is spring jointed and the spring hook is also carefully designed.
Hope that you will experience the thick bass sound at idling and the pleasant sound and response when turning the engine.
The exhaust system has been changed from the conventional 4-1 type to the newly designed 4-2-1 type, which is a high-end model that surpasses the conventional superbike full exhaust system.
Completely new design developed from a new viewpoint by carefully selecting the collecting part and pipe length according to each model.
You will be satisfied with the power feel that you can feel from the low speed torque by taking full advantage of the characteristics of the 4-2-1 system, not to mention the form and the texture of a class higher.
The silencer has a straight structure.Newly designed model with a sense of power from the accelerator response while also responding to aging.
Please enjoy "WR'sPOWER" with more peace of mind.
Developer's Long Comment
Following CB400SF / SB, the second stage is XJR400.
This model has also been used for a long time as a collective type "4-1", but WR's has adopted a collective type "4-2-1" as a JMCA approved model.
The same method as the stock is adopted to assemble No.1, No.2, No.3 and No.4 first.
The type which assembles No.1, No.4, No.2, and No.3 first which is said to be easy to produce the torque of the middle and low speed was also tested, but the characteristic and the way of producing the torque of the middle and low speed were better in the assembling method which is the same as stock, and this one was adopted.
This result was surprising because common sense applies to air-cooled engines in a relatively orthodox way, but as soon as WR's tested the engine, it reminded them once again that this is a "perfected air-cooled engine" that is the result of YAMAHA's many years of expertise in air-cooled engines.
First of all, users of this bike will of course be aware of this.Easy to ride anyway!
Handling is very straight and sharp.Compared to the original XJR400, the new XJR400 has not only new brakes and suspension, but also a much lighter unsprung weight, making it suitable for a wide range of riding conditions.
The concept of this bike is "easy to ride and fast".
First of all, in the case of the air-cooled engine, "engine fatigue" is a concern in the summer or when riding for a long time.With this in mind, WR's spent a lot of time to increase the power in the normal rpm range and to create a sense of response when the accelerator is opened.
The point is the part "2" of 4-2-1 in the exhaust part, the so-called center pipe.
WR's repeated the test by changing the length and the thickness of this part, and tried the dimensions which WR's does not usually do in the development.
WR's would have been able to accumulate more know-how and find the best size by this test.
The performance at high rpm depends on the exhaust pipe. This product is the same size as WR's "4-1" collecting section.
The layout is changed because of the "4-2-1" type, but the data that we have refined in the development of the "4-1" type is useful.
The silencer is specially developed to make the best use of this characteristic and the sound quality so that you can feel the unique bass sound of the air-cooled engine.
In addition, the silencer part is spring jointed and the spring hook is also carefully designed.
Hope that you will experience the thick bass sound at idling and the pleasant sound and response when turning the engine.
Caution
*There may be changes in product specifications due to the manufacturer's reasons.
