1. Front wheel
Show disc side, fork structure and caliper mount.
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NUTT 2‑Piston Hydraulic Brake Caliper with Built‑In Power Cutoff, Universal E‑Scooter & E-Bike Hydraulic Brake
€55,00 EUR
€72,00 EUR
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Free Shipping (7-14 Business Days Delivery)
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All Prices Include VAT – No Extra fees
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CE，DGT Certified – Compliant With EU Regulations
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1-Year Warranty Included
2‑Piston Hydraulic Brake
Send These Photos If Unsure
Not sure which version fits? Send us these three photos and our mechanics will confirm the correct setup.
2. Rear wheel
Show rear disc side, swingarm area and caliper direction.
3. Brake connector
Show the power-off sensor connector shape and pins.
NUTT Dual Piston
Controlled braking for your electric scooters and e-bikes upgrade
NUTT system uses an open hydraulic design with dual-piston calipers, forged aluminum construction, and mineral brake fluid.
- Open system, dual piston
- Forged aluminum caliper body
- Internal or swivel hose routing
- Heat-dissipating pad compatibility
- Adjustable reverse-version caliper
- Black forged aluminum lever
Product Specifications
Confirm the final configuration and SKU before purchasing.
| Applicable Model | ALL Electric scooters and e-bikes Models |
|---|---|
| Brake Type | 2-Piston Hydraulic Disc Brake |
| Target Use | Daily Commuter Electric Scooters |
| Braking Feel | Sensitive & Stable Linear Braking |
| Fits brake disc size | 140mm,160mm |
| Safety Feature | Built-in power-off sensor for motor & circuit protection |
| Hydraulic Design | Full leak-proof sealed hydraulic structure,low maintenance |
| Installation | Direct bolt-on replacement, no extra modifications |
| Compatible Scooter Brands | Dualtron, Zero, Booster ES3, Speedway Kukirin,Joyor,Ausom,HILey |
What's Included
Package contents vary by selected position.
Position 01
Front Brake
- Front dual-piston hydraulic caliper
- Matching hydraulic brake lever
- Front hydraulic hose (1350mm)
- Pre-installed brake pads
- Mounting hardware
Spacer is included only when selected.
Position 02
Rear Brake
- Rear dual-piston hydraulic caliper
- Matching hydraulic brake lever
- Rear hydraulic hose (2200mm)
- Pre-installed brake pads
- Mounting hardware
Confirm swingarm clearance before ordering.
Recommended
Front & Rear Set
- Front & Rear dual-piston calipers
- Left & Right brake levers
- Front (1350mm) & Rear (2200mm) hoses
- Brake pads for both positions
- Complete mounting hardware set
Best value for full braking system upgrade.
Fitment reminder: Adapter cables, rotor spacers, and washers may vary by scooter model and production year. Contact us if unsure.
Choose the Right Braking System
Compare the key differences between standard mechanical brakes and the NUTT 2-piston hydraulic brake system.
Ordinary Brake
Standard cable-driven system
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Braking Performance: Provide only basic braking performance
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Sensor Feature: Performance not consistent
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Maintenance: Cable stretching needs regular adjust
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Braking Experience: Need more hand force for braking
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Application: For casual riding
NUTT Hydraulic Brake
Advanced 2-piston hydraulic system
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Braking Performance: Provide powerful and consistent stopping
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Sensor Feature: Stable performance at high-speed riding
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Maintenance: Self-adjusting hydraulic pressure
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Braking Experience: Smooth one-finger braking control
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Application: For electric scooters and e-bikes
Installation & safety
Installation Steps & Safety Instructions
Follow the fitment checks below before installing or riding with a NUTT hydraulic brake upgrade.
Confirm the correct configuration
Check the scooter model, production version, front or rear position, rotor side, mounting type and brake connector. Confirm whether a spacer, adapter cable or original washer is required.
Inspect the package before fitting
Make sure the caliper, lever, hose, brake pads and selected hardware match the purchased configuration. Do not install damaged parts or discard model-specific hardware before fitment is confirmed.
Remove the original brake safely
Secure the scooter before removing the original brake. Protect the rotor and hose area from contamination, and keep any original washers or model-specific parts for comparison.
Install the lever and caliper
Mount the lever and caliper using the correct hardware for the selected configuration. Keep the caliper aligned with the rotor and do not force parts into position.
Route the hose and check clearance
Route the hose away from sharp edges, moving parts and folding points. Check the gap around the caliper, rotor, fork, swingarm, tyre and other components before final tightening.
Test before normal riding
Check lever operation, rotor rubbing, bolt security and motor power cutoff. Complete a controlled low-speed test in a safe area before normal riding.
2-Piston Hydraulic Brake FAQ
Find answers about NUTT 2-piston hydraulic brake compatibility, power-cutoff safety and installation fitment.
How do I confirm whether this 2-piston brake fits my scooter or e-bike?
Before ordering, confirm your vehicle model and production version, front or rear position, rotor side, fork or swingarm mounting structure, rotor size, hose route and brake-lever connector.
The target product is designed for mainstream electric scooters and e-bikes, but mounting and wiring can vary between models and production years. If you are unsure, send clear fitment photos before ordering.
How should I choose the correct front caliper side?
Check the side of the front rotor and the style of your front fork before selecting the variant. For a vertical-style front fork, the required caliper may be on the opposite side of the rotor so the caliper can align correctly with the mounting structure.
For example, a right-side front rotor may require a Front-Left caliper in the applicable fork configuration. Do not select by left or right alone—compare the mounting area and final SKU option.
What brake configurations are available?
The available options may include front-only, rear-only and front-and-rear sets, with different caliper sides and left- or right-lever configurations.
Select the option that matches your existing brake layout. A complete set should include the matching front and rear calipers, levers, hoses and required hardware for the selected configuration.
Which rotor size and thickness does the 2-piston brake use?
The product page lists compatibility with 140 mm and 160 mm rotors. The applicable 2-piston configuration is specified for a 1.8 mm-thick brake disc.
Confirm the rotor diameter, thickness, bolt pattern, offset and braking surface before installation. Do not force a rotor or use a thickness outside the final SKU requirements.
Does the brake include a motor power-cutoff sensor?
Yes. The applicable configuration includes a built-in brake-lever power-cutoff sensor that interrupts motor output when the brake lever is pulled.
Connector shape, pin configuration and wiring can differ by scooter or e-bike. A dedicated adapter cable may be required for some KuKirin G2, G2 Ultra and G4 configurations. Match the connector before ordering and never force an incompatible plug.
What hose lengths are available?
The listed standard hose lengths are 1,350 mm for the front and 2,200 mm for the rear. Custom lengths may be available for selected configurations.
Measure the complete routing path with the handlebar turned left and right. The hose must not be stretched, sharply bent, pinched by a folding mechanism or exposed to moving parts.
Does the brake arrive pre-bled, and what fluid should be used?
The listed product is supplied as a pre-bled hydraulic brake system for easier bolt-on installation. If the hose is opened, shortened or disconnected during internal routing, the system may need to be bled again.
The applicable configuration uses mineral oil. Use mineral oil only and never mix it with DOT brake fluid, which can damage seals and cause leakage.
Does the OOTD T10 require a spacer?
For the applicable OOTD T10 fitment, a 1 mm spacer between the motor and brake rotor may be required to provide correct rotor and caliper clearance.
Spacer requirements can vary with the vehicle version, rotor and selected caliper orientation. Confirm the final clearance before tightening the hardware and riding.
What is included in the package?
Package contents vary by the selected position and set option. The applicable package may include:
- NUTT 2-piston hydraulic caliper;
- matching brake lever with power-cutoff sensor;
- front or rear hydraulic hose in the selected length;
- pre-installed brake pads;
- mounting hardware for the selected configuration.
Adapters, spacers, washers and dedicated connector cables may be model-specific or sold separately. Check the final variant and package list before ordering.
What should I check after installation?
Confirm that the caliper is centered over the rotor, the rotor does not rub, the hose is safely routed, the lever feels firm and all mounting bolts are correctly tightened.
Test the motor power cutoff with the wheel lifted, then complete a controlled low-speed test in a safe area. Stop using the vehicle immediately if the system leaks, the lever feels spongy or the cutoff function does not work.
What photos should I send if I am unsure about fitment?
Please send clear photos showing:
- Front wheel: rotor side, fork structure and caliper mount;
- Rear wheel: rotor side, swingarm structure and caliper direction;
- Brake connector: the power-cutoff plug, pins and cable;
- Existing brake: caliper, lever, hose route and mounting hardware.
Still unsure about fitment?
Send your vehicle model, brake position and clear fitment photos to
nuttbraking@outlook.com
before ordering. Please include the selected hose length, caliper side and connector details if available.