Removing filling, incorporating gel, and tuck-rolling! Enjoy customizing your motorcycle seat with ease, as taught by the long-established “Myoga Seat” [Tokyo Motorcycle Show 2025]

First, let’s check out the original seat of the popular big bike, Kawasaki Z900RS!

A smooth step is installed from the driver’s seat to the pillion seat. A pillion seat belt has also been installed.

Tuck Roll uses the classic “high frequency welder” which creates pleats by embossing using high frequency heat.

The stock seat for the Z900RS has a smooth curve on the driver’s seat and a step leading up to the pillion seat. A pillion belt is installed in front of the pillion seat. The surfaces of the driver’s seat and pillion seat have a horizontal tuck roll.

The stitching on both sides of the seat body to the tail section uses white stitching to enhance the sense of luxury and presence. The standard seat height is 800mm.

So what kind of techniques are used to make custom motorcycle seats? First, let’s look at the basics of seat customization.

Basics of seat customization

1: Tuck roll

This is a part where pleats are made by pinching the surface of the jacket and sewing at regular intervals (typically 4cm to 5cm). By creating a three-dimensional effect, it improves the degree of customization and presence compared to a flat surface. There are mainly two types of tuck rolls:

1) The elaborate, traditional “perforation” created by sewing with a sewing machine needle and thread.

2) The “high-frequency welder” creates pleats by “embossing” using the heat generated by high-frequency waves, and is widely used in genuine products and mass-produced products.

There is a manufacturing method called “High Frequency Welder”. Currently, the main method is to use “High Frequency Welder”. Rather than “Perforation” using a sewing machine needle,

・Rainwater is less likely to seep in

・Easy to process and reduces work time

・Stable quality

・Low cost

There are benefits such as:

2: No bean paste

“Anko” refers to the sponge (polyurethane) inside the seat. “Anko-nuki” refers to a customization where the sponge on the seat surface is removed (reducing the amount of sponge) to change the seat height.

Generally, removing padding is done to improve the bike’s foot reach. Also, removing padding from the “corners” reduces pressure on the thighs. Some customers even customize or change the seat shape to suit their own body shape and habits, as well as the overall balance of the machine.

3: Gel built-in/gel processing

As an after-sales service for seats whose cushioning has been reduced by “removing the filling,” this is a seat customization technique in which a gel with excellent shock absorption properties (honeycomb gel cushion) is embedded in the seat surface. Some users order gel to be embedded in the seat surface of their standard seats if they feel that “the ride is not comfortable” or “long-distance driving is tiring,” etc.

4: Piping, rivets, logo, tag

The “GTR-Series TUCK ROLL Pattern” custom seat for the Z900RS features black piping, silver studs, a white KAWASAKI logo, and a tag with the MYOGA logo. See below for details!

Piping is a method of adding a tubular border to the seam between two pieces of fabric. It can be combined to create a stylish look, such as white piping on a black seat cover.

Rivets are used to hammer metal rivets into the sides of the seat, giving it a rugged, mechanical appearance. The manufacturer’s logo is placed on the rear end of the seat. There are also custom seats that feature the seat manufacturer’s tag on the side of the seat.

Myoga Sheet for Kawasaki Z900RS GTR-Series Tuck Roll Pattern

Price: 52,800 yen (tax included) Product code: 0160 (matt) / Product code: 0170 (glossy)

Compatible models: Kawasaki Z900RS/SE/Z900RS CAFE ’17-’23 (as of January 2023)

Myoga Seat (headquarters: Hamamatsu City, Shizuoka Prefecture), a long-established company founded in 1955 that specializes in motorcycle seats, has released the GTR-Series TUCK ROLL Pattern custom seat for the Kawasaki Z900RS. This is an extremely luxurious product created by an expert in motorcycle seats with over 60 years of experience.

GTR-Series TUCK ROLL Pattern styling features for Kawasaki Z900RS

Designed and manufactured based on the concepts of “passing on the unwavering spirit of a classic car to the next generation” and “the good old values that everyone desires.” The “matt black” retains the unique texture of classic cars while being made to match the modern neo-retro look. The “glossy black” brings out the strong individuality of the car, and is arranged to go well with any body color.

To match the sensual tuck roll pattern of the famous Kawasaki Z2, the urethane shape of the pillion seat has been changed to a stepped shape, enhancing the degree of customization, presence, and sense of ownership. The urethane shape when lowered is also designed not to disrupt the balance with the body, resulting in a flowing form with a sense of unity.

Kawasaki Z900RS GTR-Series TUCK ROLL Pattern Mechanism

The pitch width of the tuck roll has been increased to 50 mm and the underlying urethane foam has been set to 10 mm, emphasizing the three-dimensional effect unique to the tuck roll pattern.

In addition, the urethane foam is set to 10mm to improve cushioning when riding. In addition, the urethane shape in the pillion area is stepped to prevent excessive forward leaning when riding pillion.

The seat is made of one-piece molded urethane and has a gel built into it that has excellent shock absorption properties. The seat height is lowered by approximately 30mm compared to the stock ratio, improving foot reach while also easing pain in the buttocks and cushioning impacts while riding.

Even when lowering the seat height, a comfortable riding posture is ensured by taking into consideration the riding position and creating width in the front and rear to create space.

The base, mounting materials, urethane, and surface are all made in Japan. High quality and consistent quality is achieved. Available in two finishes: “matt” and “glossy.”

Kawasaki Z900RS GTR-Series TUCK ROLL Pattern Product Specifications

Compatible models: Kawasaki Z900RS/SE/Z900RS CAFE ’17-’23 (as of January 2023)

Price: 52,800 yen (tax included)

Part number: 0160 (matte) / 0170 (glossy)

Lowering: Approximately 30 mm lower than stock

Coverage: Tuck roll pattern (Z2 pattern)

Other: One-piece molded gel insert urethane (stepped shape)

Custom seats for each vehicle

For Honda CT125 Hunter Cub

The seat base has been improved, the inner thigh area slimmed down and the height lowered to allow for maximum foot placement. To ensure comfort while keeping the urethane thin, a gel material with excellent shock absorption is inserted in the area where the buttocks touch. The low seat height and slim design allow for foot placement that exceeds the numerical value. A variety of types are available with different types of cover and manufacturing methods.