EQUAL
Mechanical Disc Brake Caliper Set
EQUAL mechanical disc brakes offer the reliability and ease of maintenance
unique to mechanical systems—while also delivering world-class stopping power and lightness.
They perform reliably even under the intense braking demands of road racing and cyclocross.
They also provide dependable support when dealing with issues during bike travel or long-distance rides.
This next-generation braking system is designed for ease of use across a wide range of riding situations.
Find your perfect braking feel.
EQUAL mechanical disc brake calipers deliver exceptional stopping power, thanks to a fully integrated design encompassing the calipers, cables, and pads—rivaling even hydraulic disc brakes. They also feature a unique Brake Feel Adjustment System that allows riders to fine-tune braking performance based on weight and personal preference. Experience braking that truly fits you.
Find the perfect color for you.
If you take pride in every detail of your bike—even the color of its components—EQUAL mechanical disc brake calipers come in a range of colors to match your style. Show your personality through color.
Clear Purple has been added to the lineup as of May 2025!
Features
World-Class Lightweight Caliper
To achieve both high rigidity and lightness, we use high-strength super duralumin and precisely machine nearly every part of the caliper. At just 136g including brake pads (flat-mount type), it is among the lightest mechanical disc brake calipers in the world. Even with cables included, the total system weight rivals that of top-tier hydraulic brake systems. This makes it a great choice for serious racers and hill climbers who are concerned about every gram.
Total design of the brake system
The brake system is designed as a whole, including cables and pads.
With a special hard outer casing that resists deformation, it provides high transmission efficiency.
The inner cable is a low-friction stainless steel cable with a low-friction coating, delivering light pull effort.
The brake pads are co-developed with Vesrah, using resin-based ceramic semi-metallic (EVO RESIN) friction material and aluminum backplates, offering high braking power and durability.
All the necessary brake performance is delivered with high quality, and everything comes as a complete set.
Brake-leverage adjustment function
Equipped with the world’s first brake leverage adjustment function. The brake power can be adjusted to suit your weight and preference. Whether you want to emphasize control or increase the initial braking power, you can do it as you like.
Optimization of cable routing
We paid attention to the cable routing. Optimal cable routing reduces sliding resistance, resulting in a lighter lever pull and improved transmission efficiency. It also makes installation easier and looks better.
Let’s learn about disc brake systems.
Disc brakes are now the norm, but what kind of braking system is a disc brake anyway? What are the advantages and disadvantages of hydraulic and mechanical systems, and why did EQUAL develop mechanical disc brakes?
This is a summary of EQUAL’s thoughts on disc brake systems. If you are interested, please take a look at the Concept and Data below.
For more detailed information about the product, including instruction manuals, Concept and Data, etc., please see the following
Mechanical disc brake caliper set Documents
The information is available on the webpage below, so please take a look.
Japanese
file format: PDF
last update: September 28, 2022
English
file format: PDF
last update: September 28, 2022
Japanese
file format: PDF
last update: September 30, 2021
English
file format: PDF
last update: September 30, 2021
Japanese
file format: PDF
last update: April 30, 2021
English
file format: PDF
last update: August 16, 2021
Compatible with both Flat Mount and Post Mount (for units shipped from November 2023 onward)
Japanese
file format: PDF
last update: November 2, 2023
English
file format: PDF
last update: November 15, 2023
Before October 2023
Japanese
for Flat mount
file format: PDF
last update: February 8, 2022
for Post mount
file format: PDF
last update: November 16, 2021
English
Flat mount
file format: PDF
last update: November 26, 2021
Post mount
file format: PDF
last update: November 26, 2021
Mechanical disc brake caliper set FAQ
You can also use Shimano’s “Shimano Premium Grease” or similar products.
You can also use lithium or urea grease with NLGI grade #2 as a substitute.
EQUAL 機械式ディスクブレーキキャリパーはリムブレーキ同様にワイヤーでブレーキを作動するショートプル(※)のブレーキレバーがお使いいただけます。油圧ディスクブレーキ用のレバーはご使用できません。
※ショートプルは以下の表現をされていることがございます。
・ロード用
・カンチブレーキ用
・キャリパーブレーキ用
・ミニVブレーキ用(Vブレーキ用は対応しておりません)
シマノ社、カンパニョーロ社、SRAM社などで設計思想の違いによりレバー比が異なりますが、弊社ブレーキキャリパーは各社中央値を狙って設計しておりますので、どのメーカーでもご使用いただけます。
実際にシマノ、カンパ、スラム等各社の新旧ブレーキレバーで問題なく使用できることを確認しております。
Vブレーキ用レバーの使用不可につきまして
Vブレーキ用レバー比（てこ比）のブレーキレバーでEQUAL機械式ディスクブレーキキャリパーを使用した場合、カンチブレーキ用レバー比のブレーキレバーを使用した場合に比べて、ブレーキの効きが弱くなります。
本来の設計通りの性能を発揮できない組み合わせとなるため、使用不可としております。
Replacement parts are available.
Please contact the store where you made your purchase.
We recommend using the standard EQUAL brake pads.
If you choose to use third-party products, the system is compatible with Shimano ROAD-type pads such as K04 (metal), K03 (resin), and K05S-RX (successor to K03), as of March 2022.
When using third-party pads, please make sure to use the dedicated mounting bolts for the EQUAL disc brake caliper.
Please note that Shimano pads with cooling fins are not compatible.
If you operate the swing arm several times before installing the disc brake caliper on the bicycle, the piston may fail to return.
This occurs when the swing arm is rotated all the way into the “danger zone,” causing misalignment between the piston and the shaft.
If the piston does not return, press the swing arm fixing bolt (please refer to the dealer manual for details), and the piston and shaft will realign properly.
Please note that this issue will not occur once the caliper is installed and in regular use on a bicycle.
If you wish to use a 160mm rotor on the rear side, you will need to use a third-party adapter.
TRP adapters can be used as-is without any modification.
In the case of SHIMANO adapters, the mounting bolts are of a special design, and the pin section may interfere with the caliper. In such cases, you will need to modify the bolt by cutting the interfering part.
Please follow the adapter’s installation instructions to ensure proper mounting.
Brake pad clearance should be adjusted using the pad adjustment bolt.
While adjusting with the Brake-leverage adjustment bolt will change the position of the outer pad, it will also affect the brake feel.
If adjusted significantly, it may enter the “danger zone,” which can be hazardous.
Only use the Brake-leverage adjustment bolt in emergency situations—such as when you’re away from home, without a hex wrench, and the pads are significantly worn—where not adjusting the lever stroke would pose a safety risk.
Even in such cases, if squeezing the brake lever causes it to enter the danger zone, stop riding immediately.
Option and Spare Parts
FLAT-MOUNT ADAPTER FRONT 140MM/160MM
This is a flat-mount disc brake adapter for front forks. By flipping the adapter, it can be used with both 140mm and 160mm rotors. Mounting bolts are included.
Japan Sales Price: JPY1,500 (excluding tax)
*Included with the complete set (2-piece kit for international sale).
FLAT-MOUNT REAR BOLT SET
Mounting bolts for the rear of EQUAL mechanical disc brake calipers (flat mount).
Japan Sales Price: JPY1,000 (excluding tax)
*Included with the complete set (2-piece kit for international sale).
*Please use third-party adapters if necessary according to the rotor size.
EQUAL GREASE
EQUAL grease utilizes the Weissenberg effect, allowing it to stay in moving parts.
It is a premium grease that provides low friction and high durability without relying on viscosity or adhesion.
Capacity: 25g
Japan Sales Price: JPY1,000 (excluding tax)
DISC BRAKE PADS
Brake pads jointly developed with Vesrah.
They use resin-based ceramic semi-metal (EVO RESIN) friction material and aluminum backplates, achieving lightweight design with high braking power and durability.
Specification: Compatible with SHIMANO ROAD
Weight: 4g per pad
Japan Sales Price: JPY2,200 (excluding tax) / Set of 2 pads for one caliper
*One set is included with each caliper body.
MECHANICAL DISC BRAKE CABLE SET
This is a dedicated cable set for the EQUAL mechanical disc brake caliper. It uses a combination of two specially designed outer casings—hard and soft types—to achieve powerful braking performance. The set also includes low-friction inner brake cables and all necessary small parts.
Type: For flat handlebars / For drop handlebars
Japan Sales Price: JPY2,000 (excluding tax) / 1 set for one caliper
*One set is included with each caliper body.
Inner cable
Brake inner cable with low-friction coating for reduced sliding resistance.
Type: For flat handlebars / For drop handlebars
Length: 1900mm
Japan Sales Price: JPY800 (excluding tax) / per piece
Product Specifications
- Mount Compatibility
- ・Flat Mount
・Post Mount
*Please note: each is a separate product.
- Compatible Levers
- Road and cantilever brake levers (short pull)
*Not compatible with V-brake levers (both flat mount and post mount)
- Colors
- Gray, Red, Blue, Gold, Silver, Black
Clear Purple (available from May 2025)
- Caliper Body Weight
- for Flat mount：136g
for Post mount：137g
- Japan Sales Price
-
for Flat mount
Complete set (2-piece kit): JPY 30,200 (excluding tax)
Single set (1 piece, Japan only): JPY 15,200 (excluding tax)
for Post mount
Complete set (2-piece kit): JPY 33,500 (excluding tax)
Single set (1 piece, Japan only): JPY 17,500 (excluding tax)
- Included items
for Flat mount
・Complete set (2-piece kit)
- Disc brake caliper ×2
- Mechanical disc brake cable set ×2
- FLAT-MOUNT ADAPTER FRONT 140MM/160MM ×1
- FLAT-MOUNT REAR BOLT SET・Single set (1-piece kit)
- Disc brake caliper ×1
- Mechanical disc brake cable set ×1
*For single sets, the FLAT-MOUNT ADAPTER FRONT 140MM/160MM is required for front installation, and the FLAT-MOUNT REAR BOLT SET is required for rear installation.for Post mount
・Complete set (2-piece kit)
- Disc brake caliper ×2
- Mechanical disc brake cable set ×2・Single set (1-piece kit)
- Disc brake caliper ×1
- Mechanical disc brake cable set ×1
Important Notice
・If you do not have sufficient bicycle maintenance knowledge, do not attempt to install this product. Please consult a specialist or professional bike shop if you are unsure about the work involved.
・If any part of the instructions is unclear, do not proceed with installation. Please contact the retailer where you purchased the product.
・We are not responsible for any injury or damage caused during use except in cases of product defects. This includes improper installation or lack of maintenance.
・The product’s design concepts and technical data are published. We recommend reviewing them before use.
・A dealer manual is available for retailers and other users with specialized knowledge of bicycles.
・It may take some time for the brake pads to bed in and for the brake cables to settle properly.
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*プロトタイプのため、製品版とは若干の違いがございます。
**外部リンクです。ご注意ください
【La route】グロータック・EQUALキャリパー試乗 機械式ディスクブレーキの可能性（前編）
https://laroute.jp/impression/2021/06/0076-023/
【La route】グロータック・EQUALキャリパー開発譚 機械式ディスクブレーキの可能性（後編）
https://laroute.jp/technology/2021/06/0077-024/
*有料会員専用記事です
