GROWTAC is a Japanese manufacturer that develops and sells bicycle-related products. They produce a variety of cycling gear, including "EQUAL" cycle parts for sports bikes and the "GT-Roller" indoor trainer.

Amidst this, a new Kashima Coat version has been added to their highly acclaimed EQUAL mechanical disc brakes!
EQUAL Mechanical Disc Brake Features



Equipped with the world's first brake feeling adjustment system, a major feature of these mechanical disc brakes (actuated by brake cables) is the ability to finely tune how the brakes engage. Most mechanical disc brakes have a design where only one brake pad moves, which offers the benefit of lighter lever pull and easier maintenance due to having fewer parts.
EQUAL also adopts this structure, allowing you to independently adjust the position of both the left and right pads smoothly using a 3mm hex wrench. This lets you precisely set the distance the pads travel before hitting the rotor, allowing you to customize the bite point to suit your personal preference and riding style.
Additionally, thanks to the total design of the calipers, cables, and pads, they deliver high braking power that rivals hydraulic disc brakes.
Kashima Coat joins this excellent brake lineup!

GROWTAC Equal Mechanical Disc Brake Caliper Drop – Kashima Coat
Mount Type: Flat Mount, Post Mount
Compatible Levers: Road/Canti brake levers (short pull)
※Not compatible with V-brake levers.
【Included Items】
・Disc brake calipers ×2
・Inner cable sets ×2 (includes sets for both drop and flat levers)
・Adapter set (Front 140/160) ×1
・Mounting bolt set (Rear) ×1
Post Mount
Price: 51,150 yen (tax included)
Flat Mount
Price: 46,420 yen (tax included)



To begin with, "Kashima Coat" is a high-performance surface treatment that adds molybdenum disulfide, a solid lubricant, to hard anodizing to reduce friction and improve wear resistance. Because the surface is highly hard and scratch-resistant, it is used for parts that rub against each other or require high durability.



I thought the Kashima Coat applied to the entire brake might be overly gold and flashy, but once installed on a bike, it’s surprisingly understated and gives off an elegant glow.
Kashima Coat is not intended for decoration; it is a functional surface treatment. Each part has its own subtle shading, meaning no two are exactly the same. This is a characteristic of Kashima Coat and is part of its charm. Furthermore, the Kashima coating is even applied to the areas that contact the brake pads and the piston itself, ensuring even smoother operation during braking.

At Circles, we carry other color variations in addition to the Kashima Coat, so you can see each of the colors in person at our store. Please come by and see them for yourself.