What kind of motorcycles is this brake disc suitable for?

It is suitable for heritage custom models such as CB1000F, KATANA, and Z900RS. Please check the product specifications for specific models and years.

Does the Z900RS version require special installation?

Yes, the Z900RS version has an oversized disc diameter (φ320), so an offset collar for the caliper is required for installation.

What kind of company is PROT?

PROT is a comprehensive trading company founded in 1981, dealing with two- and four-wheeled parts, vehicles, and accessories, providing total support for motorcycle and car life.

What kind of brand is Sunstar?

Sunstar is a long-established company founded in 1932, currently known as a leading brake disc brand with a global market share.

What is the price of this brake disc?

The price including tax is ¥50,600 per disc. There are right and left versions for each compatible model.

PLOT x SUNSTAR Custom Premium Racing Gold Brake Discs Launched

Published Jun 9, 2026 8:57 PM ・ Updated Jun 13, 2026 11:59 PM ・ 9 min read ・ Source: PR TIMES

PROT Co., Ltd. has launched custom-ordered Premium Racing Gold brake discs in collaboration with SUNSTAR. These special edition discs, featuring a gold inner hub, are designed to enhance the style and sportiness of heritage custom motorcycles such as the CB1000F, KATANA, and Z900RS, balancing aesthetics with performance.

Photo: Example of Brembo caliper 220.B010.10 installed on a Z900RS (offset collars & bolts required for installation).

PROT Co., Ltd. (Headquarters: 5 Sakurajima, Igatani-cho, Kariya City, Aichi Prefecture; Representative: Yoshimitsu Kondo; hereinafter PROT), a company that plans, imports, and sells car, motorcycle, and outdoor goods, has begun sales of the PLOT x SUNSTAR Custom Premium Racing Gold Brake Discs.

PLOT x SUNSTAR Custom Premium Racing Gold Brake Discs

We offer custom gold discs to make the suspension of heritage custom machines like the CB1000F/KATANA/Z900RS more glamorous and sporty. These are custom-ordered products by PROT, based on Sunstar's popular Premium Racing discs.

About Sunstar

Sunstar started in 1932 as a manufacturer of bicycle parts and rubber cement for repairing punctured tires. Today, it is a leading brake disc brand with a global market share.

This is a special specification with a gold-colored inner hub. It focuses not only on performance features like holes and slits but also on the color tone. It's an ambitious creation by PROT, which is particular about brake parts, including Brembo.

Thickness 5.5mm / Slit & Hole / Black Pin Specification

*For Z900RS only, the caliper requires an offset collar due to oversized φ320.

Enhanced custom feel when installed with Brembo calipers

PLOTxSUNSTAR Custom Premium Racing Gold R CB1000F 26

Specification: Slit & Hole (φ310) Available for right and left sides. Compatibility: CB1000F 26 Part Number: P143-3112 (Right) / P143-3111 (Left) Price (tax included): ¥50,600 (per disc)

PLOTxSUNSTAR Custom Premium Racing Gold R KATANA/GSX-S1000

Specification: Slit & Hole (φ310) Available for right and left sides. Compatibility: KATANA 19-26 / GSX-S1000GX 24-25 GSX-S1000 15-25 Part Number: P143-3108 (Right) / P143-3107 (Left) Price (tax included): ¥50,600 (per disc)

*Brembo caliper replacement and offset collar & bolts are required due to oversized brake disc diameter.

PLOTxSUNSTAR Custom Premium Racing Gold R Z900RS/SE/CAFE 18-26 Oversize

Specification: Slit & Hole (φ320) Available for right and left sides. Compatibility: Z900RS 18-26 Z900RS CAFE [Cafe ZR900E] 18-26 Part Number: P143-3110 (Right) / P143-3109 (Left) Price (tax included): ¥50,600 (per disc)

For caliper offset collars / Brembo calipers, click here.

◆ About PROT Co., Ltd.

PROT Co., Ltd. was founded in April 1981. It has expanded its field to include parts for two- and four-wheeled vehicles, motorcycle manufacturing (PEV series), and imported vehicle sales (including E-BIKEs). Currently, it has become a comprehensive trading company for vehicles (motorcycles, E-Scooters, E-BIKEs), parts, and accessories.

In recent years, PROT has manufactured and sold the "Road Hopper," a large motorcycle from its original vehicle brand ZERO ENGINEERING, developed proprietary "positioning" products (Effex) with the theme of "safety, security, and comfort," engaged in used vehicle restoration, and provided total support for motorcycle and car life by handling top-tier brands selected from domestic and international markets.

Furthermore, as part of its CSR activities, PROT fosters human resources that contribute to the development and promotion of automotive technology and industry by participating in and supporting the "Student Formula Japan Competition," a large-scale "manufacturing = human resource development" project. (Supplying Swage Line).

Prot Student Formula Support Site https://www.plotonline.com/gakusei-formula/

【Company Profile】 Company Name: PROT Co., Ltd. Head Office Address: 5 Sakurajima, Igatani-cho, Kariya City, Aichi Prefecture 448-0001 Representative Director: Yoshimitsu Kondo Business Activities: 1) Planning, development, manufacturing, import, and wholesale of parts and accessories for motorcycles and four-wheeled vehicles. 2) Import and sales of motorcycle vehicles and accessories. 3) Production and joint development with emerging accessory manufacturers. 4) Import and wholesale of E-Bikes (electric assist bicycles). 5) All other matters related to the above. Aichi Brand Certified Company 0913 Founded: April 1, 1981 Established: February 24, 1984 HP: https://www.plotonline.com/ Keywords:

FACT BOX

Source: PR TIMES
Category: New Product
Organizations: SUNSTAR

PLOT x SUNSTAR Custom Premium Racing Gold Brake Discs Launched

⚡ Key Points

For caliper offset collars / Brembo calipers, click here.

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