Package contents may vary depending on the selected option, such as front brake, rear brake, or front and rear set.
Show disc side, fork structure and caliper mount.
Show rear disc side, swingarm area and caliper direction.
Show the power‑off sensor connector.
Purpose-built for KuKirin electric scooters, this NUTT hydraulic brake upgrade kit combines precision 2-piston braking with an integrated power cutoff sensor and model-specific hose lengths. Upgrade from mechanical brakes to enjoy smoother braking, improved control and greater confidence on every ride.
Purpose-built for KuKirin electric scooters, every component of the NUTT hydraulic upgrade kit is engineered to improve braking confidence. From the precision 2-piston caliper to the integrated power cutoff sensor and pre-configured hydraulic hose, the complete system delivers smoother control, safer stopping and a hassle-free installation experience.
CNC-machined aluminum caliper provides balanced hydraulic pressure, smooth modulation and reliable stopping power for everyday riding.
The built-in electronic cutoff sensor instantly disables motor output when braking, helping improve rider safety and braking response.
Factory-matched hose lengths are optimized for compatible KuKirin scooters, making installation faster while maintaining a clean routing.
| Parameter | NUTT 2-Piston Hydraulic Brake | Ordinary Brake |
|---|---|---|
| Braking Performance | Sensitive & stable braking | Slow response, unstable stop |
| Sensor Feature | Built-in power-off sensor, protects motor & circuits | No power-off sensor, risk of circuit burnout |
| Sealing Structure | Leak-proof sealing, low maintenance | Poor sealing, easy oil leakage |
| Installation | Direct bolt-on replacement, no extra mods | Need modification & extra adaptors |
| Piston Structure | 2 Piston CNC Aluminum Body | Plastic 2-piston, easy deformation |
| Tube Length Option | Custom 1350/2200mm available | Fixed tube length only |
| Warranty Period | 1 Years Official Warranty | 6 Months Short Warranty |
| Oil Bleed Design | Quick Oil Bleed System | Complicated messy maintenance |
Why 80% of riders regret sticking with cable brakes — and how NUTT hydraulic changes everything.
Quick answers to the most common questions about NUTT hydraulic brake systems.
Yes, this upgrade kit is explicitly designed for universal fitment across the entire Kukirin electric scooter lineup. Whether you have a G2, G2 Max, M4 Pro, or any other Kukirin model, the kit's pre‑configured hose lengths (1350mm front, 2200mm rear) and mounting brackets are tailored to work seamlessly without any additional modifications.
The one exception is the KuKirin G2 Pro, which needs a 5mm metal spacer between the motor and the brake disc — see the question below for details.
The power cutoff is an integrated sensor within the brake lever. When you apply the brakes, it interrupts the electrical signal to the motor controller, instantly cutting power. This function is universal and works with all Kukirin scooter models as it's designed to integrate with the standard e‑brake wiring found on these vehicles. It enhances safety by preventing motor drag during braking.
The kit is designed as a bolt‑on upgrade. The hydraulic hoses come pre‑bled and pre‑filled, meaning you don't need special bleeding tools for initial installation. You'll need basic hex wrenches (Allen keys) to remove your old brakes and mount the new calipers and levers. The process is straightforward for most DIYers, though professional installation is always recommended if you're unsure.
For the KuKirin G2 Pro, a 5mm metal spacer needs to be installed between the motor and brake disc during installation. It shifts the disc outwards so the disc and the caliper line up correctly — without it the disc sits too far inboard.
Absolutely. NUTT offers full customization services for all its hydraulic brake products. If the standard 1350mm (front) and 2200mm (rear) hoses are not suitable for your custom setup, you can contact us to request specific hose lengths, or even different piston configurations and color schemes to match your build.
