Ultra Bee Rear Brake Kit for E-Bikes
Ultra Bee Rear Brake Kit for E-Bikes
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Fitment & Compatibility⌄
Installation⌄
Estimated time: 25–45 minutes
Professional installation is recommended if you are unfamiliar with hydraulic brake systems.
What’s Included⌄
Shipping⌄
Frequently Asked Questions⌄
This is a complete rear brake conversion.
Does it arrive pre-bled?
Yes. The hydraulic brake assembly arrives pre-bled and ready for installation.
What is the difference between OEM and replica?
The genuine OEM system provides the firmest lever feel, strongest performance, and highest build quality. The replica has a slightly softer feel and somewhat less power but remains a major upgrade over typical stock bicycle brakes.
Does it include a parking brake?
Yes. Both versions include an integrated parking brake.
What rotor is included?
A 220mm rear brake rotor is included.
Upgrade your Super73, Macfox, Ridstar, or similar e-bike with a complete rear Ultra Bee brake conversion built for stronger, more consistent stopping power. The pre-bled moto-style hydraulic system provides a firmer, more controlled feel than typical stock bicycle brakes, with improved modulation and better resistance to heat and brake fade during repeated hard use.
More Control for Hard Riding
This rear brake upgrade is designed for faster, heavier electric bikes and e-motos. Its larger hydraulic components provide predictable braking at speed, while the integrated parking brake adds useful control when the bike is stopped or parked. Whether you ride streets, trails, or practice wheelies, the system delivers the braking confidence needed for a more capable build.
Choose OEM or Replica
- Full OEM Ultra Bee Brake System: A genuine Ultra Bee brake assembly with the firmest lever feel, strongest performance, and highest overall build quality.
- Replica Ultra Bee Brake System: A lower-cost alternative with slightly softer lever feel and somewhat less power than OEM, while still providing a major upgrade over typical stock bicycle brakes.
Bike-Specific Fitment
Fits compatible Super73 ZX, RX, and S2; Macfox X1, X1S, X2, and X7; Ridstar Q20, Q20 Pro, and E26; Zooz Ultra Urban models; Freego; Ghostcat; and other similar-style e-bikes.
Adapter notice: Some Macfox, Ghostcat, and similar models—including certain Macfox X2 and X7 setups—require a standard 180mm post-mount brake adapter. Confirm your bike's existing brake mount before installation.
Brake Rotor Setup
A 220mm rear brake rotor is included. Confirm rotor clearance and mount compatibility before installation.
What's Included
- Pre-bled rear Ultra Bee brake assembly
- Caliper, brake line, master cylinder, and lever
- Integrated parking brake
- Bike-specific conversion bracket
- Required mounting hardware
- 220mm rear brake rotor
- ExWorks stickers
Installation
Installation is approximately 5/10 difficulty and normally takes 25–45 minutes. Correct alignment and safe brake operation should be confirmed before riding. Professional installation is recommended if you are unfamiliar with hydraulic brake systems.
Shipping
Both OEM and replica options are currently in stock and ready to ship. Every ExWorks order includes free shipping.
For off-road use only. Installation or use may affect the manufacturer's warranty. Ride responsibly and follow all applicable laws.
921 in stock
