NOTE: Conventional tuning modules offer only limited functionality compared to today’s e-bike standards. They often rely on complex and unintuitive display button sequences for activating, deactivating, or adjusting speed limits. This makes operation cumbersome, especially during a ride. In some cases, users must stop the bicycle and manually rotate the rear wheel multiple times to initiate or confirm the selected setting — a process that is inefficient and inconvenient for real-world riding conditions.
|
Feature |
❌ Conventional Tuning Chips |
✅ EPAspeed B.Tuning |
|
Setup & Activation |
Complicated button combinations, easy to forget |
Simple app control — activate or deactivate with a tap |
|
Speed Limit Adjustment |
Requires rotating the wheel or entering complex codes |
Instantly adjustable in the EPAspeed app |
|
Firmware Resistance |
Easily disabled after motor or display updates |
Fully resistant to OEM firmware updates |
|
Display Compatibility |
Often shows wrong speed or altered speed |
Preserves full speed and distance accuracy |
|
Installation |
Wired directly into display or motor — risk of detection |
Contactless design — no software interference |
|
Bluetooth Functionality |
Not available |
Built-in Bluetooth — control settings, monitor stats, set limits |
|
User Experience |
Outdated, difficult to use, and not intuitive |
Modern, seamless, and designed for real e-MTB riders |
|
Safety & Reliability |
Risk of error codes, firmware lockout, or damage during updates |
Engineered for long-term reliability with non-invasive integration |
In contrast, the EPAspeed B.Tuning series represents the next generation of e-bike tuning — fully app-controlled, firmware-resistant, and designed for effortless operation. With Bluetooth connectivity, intuitive controls, and invisible tuning functionality, EPAspeed delivers precision, reliability, and freedom unmatched by conventional solutions.
Key Features
• Tuning Control – Instantly activate or deactivate tuning
• Adjustable Speed Limits – Set your preferred maximum assistance speed
• Invisible Tuning Mode – Undetectable operation for smooth and safe performance
• Trip Recording – Automatically save and review detailed ride statistics
• Comprehensive Ride Data – Monitor distance, duration, average & max speed, and elevation
👉 Click here to view the EPAspeed 1.0 B.Tuning for Specialized
👉 Click here to view the EPAspeed 1.1 B.Tuning for Specialized SL
Speedbox 3.1 for SPECIALIZED
PROPERTIES:
Maximum speed: unlimited
Speed limit setting: YES
Display shows: actual values
Activation: activated at all times
Compatible with: all Specialized e-bike motors (including SL) and control units TCU/MasterMind TCU
Not compatible with:
SpeedBox App
Specialized GEN 4 (3.1/S-Works)
IGH electronic shifting
A tuning chip with an option to set a speed limit for Specialized e-bikes (including SL motors) and control units TCU/MasterMind TCU
SpeedBox 3.1 tuning chip disables the speed limiter on the e-bike so you can enjoy riding at unlimited speed. After installation, your e-bike’s display will show real data such as maximum and average speed, daily mileage and cruising range.
How does SpeedBox 3.1 for Specialized work?
SpeedBox is installed into the e-bike frame under the TCU/MasterMind TCU unit. You activate the tuning by switching the e-bike off and on twice. After that, the tuning remains active with a set maximum assistance speed of 50 km/h.
You can set the maximum speed limit by switching the modes from TURBO mode three levels down and then three levels up (TRAIL - ECO - OFF - ECO - TRAIL - TURBO). The display will show the default maximum speed limit of 25 km/h. With each brief activation of the WALK function, the limit increases by 5 km/h (some displays may round to the nearest number). The last displayed limit will be saved after 5 seconds of inactivity. Confirm the setting by turning the e-bike off and on twice.
You can check the currently set maximum speed limit by pressing the + - + - button combination.
If you want to uninstall the SpeedBox from your e-bike, first set the assist speed back to 25 km/h by doing the mode switch sequence again, and confirm by switching the bike off and on twice.
Note: Speed indication in the Specialized Mission Control app may not display correctly. If you have a TCU without a display or without a Walk function, we recommend purchasing the B.Tuning version compatible with the SpeedBox App.
