E-Bike Parking Brake Finder

Find the Right E-Bike Parking Brake in 30 Seconds

By STAR UNION Technical Content Team

Answer 3 quick questions to compare the 150PYDZ/2 and 221PYDJ + KQ169.

STAR UNION 150PYDZ/2 e-bike hydraulic parking brake set
150PYDZ/2 vs 221PYDJ Which one fits your eBike? Parking brake · 2-pin motor cut-off
STAR UNION 221PYDJ KQ169 e-bike hydraulic parking brake set
3 Quick Questions

Which Brake Fits Your E-Bike?

Compatibility comes first.

Question 1 of 3 · Riding Setup

What type of e-bike do you ride?

Question 2 of 3 · Compatibility

Which brake / rotor setup is closer to yours?

Question 3 of 3 · Preference

Which sounds more useful to you?

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Find the Right E-Bike Parking Brake in 30 Seconds

Find the Right E-Bike Parking Brake in 30 Seconds

What Both Brakes Have in Common

The 150PYDZ/2 and 221PYDJ + KQ169 are both hydraulic e-bike brake sets with a parking brake function and 2-pin motor cut-off connection. That means the final choice is less about “which one has parking control” and more about which setup better matches your bike.

Simple rule: use the Finder above to narrow the choice, then confirm your rotor, connector, hose length and brake mount before ordering.

Why Choose 150PYDZ/2?

STAR UNION 150PYDZ/2 e-bike brake lever with parking function
Flexible Everyday Choice

150PYDZ/2

The 150PYDZ/2 is the more flexible starting point for riders who want a practical parking-brake upgrade for everyday e-bike use.

Parking Brake 2-Pin Cut-Off Dual Piston Mineral Oil 160 / 180 mm Rotors
Rotor flexibility Compatible with 160 mm and 180 mm rotor applications.
Hose setup 1000 mm front / 1850 mm rear.
Brake pads Ceramic pads are included.
Service setup Pre-bled with mineral oil.

It is a strong fit for cargo, fat-tire, commuter and heavier e-bike setups when you want parking control without moving to a more application-specific brake configuration.

View 150PYDZ/2

Why Choose 221PYDJ + KQ169?

STAR UNION 221PYDJ KQ169 e-bike brake with sight glass and external hose routing
High-Power E-Bike Focus

221PYDJ + KQ169

The 221PYDJ is the more targeted option for high-power city and utility e-bikes whose hardware matches the KQ169 setup.

Parking Brake 2-Pin Cut-Off KQ169 1.8 mm Rotor Sight Glass
Rotor requirement Designed around 1.8 mm thick rotors.
Hose setup 1000 mm front / 1800 mm rear.
Brake pads LP-32 pads are included.
Routing & lever External hose routing with an integrated sight glass.

If your current bike already matches the 1.8 mm rotor and KQ169-style configuration, the 221PYDJ gives you a more application-specific parking-brake setup.

View 221PYDJ

150PYDZ/2 vs 221PYDJ: Quick Comparison

Decision Point 150PYDZ/2 221PYDJ + KQ169
Parking Brake Yes Yes
Motor Cut-Off 2-pin 2-pin
Brake Setup Dual-piston hydraulic brake KQ169 hydraulic caliper setup
Rotor 160 / 180 mm applications Designed for 1.8 mm thick rotors
Front / Rear Hose 1000 / 1850 mm 1000 / 1800 mm
Brake Pads Ceramic pads LP-32 pads
Best Starting Point Cargo, fat-tire, commuter and heavier everyday e-bikes High-power city and utility e-bikes with a matching setup

Before You Order: Check These 4 Things

1. 2-Pin Connector Confirm the connector on your bike matches the brake set.
2. Rotor Check diameter, thickness and caliper clearance.
3. Hose Length Compare front and rear hose routing with your current bike.
4. Brake Mount Confirm frame/fork mounting position and adapter requirements.

If you are not sure, take clear photos of your connector, rotor, brake mount, hose routing and complete e-bike model before ordering.

Frequently Asked Questions

Do both models have a parking brake?

Yes. Both the 150PYDZ/2 and 221PYDJ + KQ169 include a parking brake function.

Do both models use a 2-pin motor cut-off connection?

Yes. Confirm that your e-bike uses a compatible 2-pin connector before ordering.

What if my Finder answers point to both brakes?

That is normal. Hardware compatibility should take priority over riding-style or feature preference. The rotor/setup question is intentionally weighted more heavily.

Which model is the more flexible everyday choice?

The 150PYDZ/2 is generally the more flexible starting point because of its everyday application focus and 160 / 180 mm rotor compatibility.

Which model is more targeted to high-power e-bikes?

The 221PYDJ + KQ169 is positioned for high-power city and utility e-bike applications, provided your rotor, mount and hose setup are compatible.

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