Ebike Garage Moto Brake Conversion Kit // "Ultra Bee Brakes" // Throne Srpnt X3

Ebike Garage Moto Brake Conversion Kit for Throne Srpnt X3

Upgrade your Throne Srpnt X3 with a full Ultra Bee Moto brake system. This conversion delivers significantly stronger stopping power, improved heat control, and true moto-grade durability over the stock setup.

Available as a Front Kit, Rear Kit, or Full Kit so you can upgrade exactly what you need. Choose your option from the variant selector above.

✅ BIKE FITMENT

• Throne Srpnt X3

This kit is designed specifically for the Throne Srpnt X3. If you have any questions about fitment, contact us before ordering and our team will confirm the correct setup for your bike.

Choose Your Kit

Pick the kit that matches what you want to upgrade. The price updates when you select a version.

Front Kit

Best for: Upgrading front braking, where most of your stopping power comes from.

What's Included:

• Front caliper mounting bracket
• 240mm EBG V3 front floating rotor
• OEM Sur-Ron Ultra Bee front brake (lever, master cylinder, hose and caliper)
• Required mounting hardware

Not included: Any rear brake parts.

Rear Kit (Black or Silver Bracket)

Best for: Upgrading the rear brake with more clamping force and heat capacity, plus rotor protection.

What's Included:

• 230mm rear caliper bracket with integrated rotor guard (Black or Silver, your choice)
• 230mm EBG V3 rear floating rotor
• OEM Sur-Ron Ultra Bee rear brake (lever, master cylinder, hose and caliper)
• Required mounting hardware

Not included: Any front brake parts.

Full Kit (Black or Silver Bracket)

Best for: A complete front and rear Ultra Bee moto brake conversion with balanced braking on both ends.

What's Included:

• Everything in the Front Kit: front caliper bracket, 240mm V3 floating rotor and front Ultra Bee brake
• Everything in the Rear Kit: 230mm caliper bracket with rotor guard (Black or Silver), 230mm V3 floating rotor and rear Ultra Bee brake
• Required mounting hardware

EBG V3 Floating Rotors

• Oversized 240mm front and 230mm rear for more braking leverage
• Floating design for better heat dissipation and pad contact
• Reduced brake fade under hard, repeated braking
• Machined for correct Ultra Bee caliper alignment

Why Upgrade to Ultra Bee Moto Brakes?

The stock braking system on the Throne Srpnt X3 was not designed for higher-power builds or aggressive riding. The Ultra Bee brakes deliver true moto-level performance with larger pistons, stronger clamping force, and greater heat capacity.

• Significantly increased stopping power
• Improved braking modulation and lever feel
• Higher heat capacity for aggressive and downhill riding
• Reduced brake fade under heavy load
• OEM Sur-Ron reliability and durability

Why Buy From TB Electric?

• Fast shipping from our Utah warehouse
• Trusted by thousands of e-moto riders
• Expert technical support
• Real-world tested performance parts

If you have questions about compatibility or installation, contact us anytime — we're here to help.

Frequently Asked Questions

What bike does this EBike Garage brake conversion fit?
This kit is designed specifically for the Throne Srpnt X3.

What brakes does it use?
OEM Sur-Ron Ultra Bee moto brakes, which have larger pistons, stronger clamping force and more heat capacity than the stock Srpnt X3 brakes.

What's the difference between the Front, Rear and Full Kit?
The Front Kit includes the front caliper bracket, 240mm V3 floating rotor and front Ultra Bee brake. The Rear Kit includes the 230mm rear caliper bracket with rotor guard, 230mm V3 floating rotor and rear Ultra Bee brake. The Full Kit includes everything from both.

What rotor sizes are included?
240mm on the front and 230mm on the rear, both EBG V3 floating rotors.

What color is the rear bracket?
The rear caliper bracket is available in Black or Silver. Choose your color in the Rear Kit or Full Kit option.

Is mounting hardware included?
Yes. Each kit includes the required mounting hardware.