If you need a dependable brake upgrade for high-speed e-scooters or heavy-load e-bikes, this NUTT hydraulic disc brake offers smooth linear braking for daily commutes, downhill and long rides. As an upgraded NUTT series model, it adopts proven power-off safety technology and has become a popular choice among two-wheeler riders and repair specialists.

Complete Brake Package & Specifications

This brake supports multiple optional combinations: single caliper or a pair of calipers, compatible with 140mm, 160mm, 180mm brake rotors. Every hydraulic brake set is pre-bled at the factory, supporting plug-and-play installation without complicated oil filling or air exhausting operations, bringing user-friendly installation experience for both new and experienced riders.

Front brake hose length: 1350mm

Rear brake hose length: 2200mm

Overall weight ranges: 758g / 793g / 804g for different adapter configurations

Caliper mounting spacing: 51mm (inner), 74mm (outer)

Compatible adapter specifications: Front IS(B): 140mm/203mm, Rear IS(B): 160mm/180mm

Installation type: right-side mounting only

Power-off connector: 2-pin waterproof plug, compatible with most mainstream electric scooter controllers

Braking structure: bilateral 4-piston synchronous drive mineral oil hydraulic system

Main material: high-strength forged aluminum alloy for brake lever and brake caliper

Brake pad size: 39.5mm × 24mm, wear-resistant metal composite material

Applicable models: KUGOO, Dualtron, Kaabo Mantis and other mainstream electric scooters & e-bikes

All components follow universal production standards for electric vehicle brake accessories, realizing wide compatibility with most two-wheeled electric vehicles on the market.

Core Product Highlights

1. Ergonomic Forged Aluminum Alloy Brake Lever with Split Oil Pipe Design

Independently developed by NUTT, the brake lever retains the reliable structural design of classic four-piston brake products. The streamlined ergonomic shape brings comfortable gripping experience during long-time high-speed riding. The practical split oil pipe structure helps lower the possibility of hydraulic oil leakage during transportation and internal wiring installation, which can help prolong the service life of your brake system. Equipped with a 2-pin waterproof power-off interface, it can maintain stable signal transmission in rainy, dusty and humid outdoor environments, delivering reliable safety performance for daily riding.

2. Bilateral 4-Piston Synchronous Drive Brake Caliper

Upgraded on the basis of mature four-piston brake technology, this product adopts bilateral four-piston synchronous clamping structure, which delivers balanced steady braking performance for heavy-load and high-speed riding scenarios. The four pistons squeeze the brake pads at the same time to make the brake pads fit closely with the brake rotor, enabling even force distribution on the rotor surface and can lower the chance of uneven rotor wear during frequent braking. The precision machined aluminum alloy caliper can resist erosion from mud, sand and rainwater, helping maintain stable braking performance across various road conditions. Matched with multiple IS standard conversion adapters, this brake can be installed on most mainstream electric scooter frames and front forks.

3. Built-In Waterproof Power-Off Sensor for Riding Safety

Consistent with the mature safety design of mainstream electric vehicle hydraulic brakes, each brake set is equipped with an integrated power cut-off sensor customized for electric two-wheelers. When you squeeze the brake lever, the waterproof sensor will send a synchronous signal to cut off the motor power immediately. This linkage design helps shorten braking distance and provides extra safeguard for your vehicle's power system during emergency stops. With optimized leverage ratio, riders can achieve smooth brake modulation without applying excessive finger force, bringing controllable riding experience in busy urban traffic and steep downhill sections.

4. Wide Compatibility & Practical Upgraded Details

This brake is professionally engineered for mainstream electric scooters and electric bicycles including KUGOO, Dualtron and Kaabo series. It supports three common rotor sizes and multiple IS mounting adapters to fit different vehicle frame layouts. Each brake set is pre-filled with dedicated mineral hydraulic oil before delivery, equipped with complete installation bolts, conversion seats and high wear-resistant metal brake pads. Riders can finish brake replacement quickly without professional hydraulic maintenance skills, which lowers the daily installation and maintenance difficulty of your brake kit. Optimized on caliper mounting structure and oil pipe connection mode, it adapts to more modified electric vehicles.

Shopping Service Information

Optional configurations: single caliper, a pair of calipers, compatible with 140/160/180mm rotors

Available mounting adapters: multiple IS standard conversion seats for different installation demands

Free worldwide shipping: every brake order enjoys global door-to-door delivery service

Hassle-free free returns: you can apply for return service within the specified period if the product cannot meet your installation and riding requirements

Secure encrypted payment: advanced encrypted checkout technology fully protects all payment information of your NUTT series orders

Standard factory inspection: each brake set passes hydraulic leakage, wear resistance and waterproof tests before delivery to guarantee steady long-term performance

Optimized production process: NUTT adopts standardized manufacturing procedures to reasonably control material consumption during the production of Y series hydraulic brakes.

Step-by-Step Installation Guide

1. Mount the brake lever on your vehicle's standard 22.2mm handlebar and fasten the fixing screw securely.

2. Connect the 2-pin waterproof power-off plug to the corresponding signal port of your electric scooter or e-bike controller.

3. Select the matched IS conversion adapter according to your brake rotor specification, then fix the brake caliper on the front fork or rear frame with right-side mounting method.

4. Adjust the horizontal position of the caliper to keep an even gap between the metal brake pads and the brake rotor surface.

5. Test the braking response and power-off triggering function repeatedly to confirm the stable working condition of your hydraulic brake set.

Ideal For These Users

High-power modified electric scooter and heavy-load e-bike riders who plan to replace aging factory brake systems, users looking to upgrade from classic four-piston brake models, urban commuting riders pursuing stable four-piston braking safety, electric vehicle maintenance technicians preparing universal high-performance brake replacement accessories, and cycling enthusiasts who need durable brake kits for long-distance cross-country riding.

Frequently Asked Questions

Q1: Can this brake be installed on the left side?

A: This hydraulic brake only supports right-side installation. Please confirm your vehicle's frame layout before purchase.

Q2: What size brake rotor is compatible with this brake?

A: It works with 140mm, 160mm and 180mm standard brake rotors, with matched IS conversion adapters included for different installation demands.

Q3: Are replacement brake pads available for this brake caliper?

A: This set is equipped with wear-resistant sintered metal brake pads in standard size 39.5mm×24mm, and you can purchase same-spec replacement brake pads for later maintenance.

Q4: Does the brake come pre-bled from factory?

A: Yes, each brake assembly is pre-filled with mineral hydraulic oil and sealed before delivery, allowing plug-and-play installation without extra oil bleeding.