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Bluetooth Functionality Not available Built-in Bluetooth — control settings, monitor stats, set limits User Experience Outdated, difficult to use, and not intuitive Modern, seamless, and designed for real e-MTB riders Safety & Reliability Risk of error codes, firmware lockout, or damage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 3.0 for SPECIALIZED PROPERTIES:Maximum speed: unlimitedSpeed limit setting: YESDisplay shows: actual valuesActivation: activated at all timesNot compatible with: Specialized SL bike models equipped with TCU Mastermind SpeedBox App SpeedBox 3.0 tuning product disables the speed limiter on the e-bike and you can enjoy riding at unlimited speed. After the product is installed, your e-bike’s display will show real data, such as maximum and average speed, daily mileage and cruising range. How does SpeedBox 3.0 for Specialized work? SpeedBox is installed into the e-bike frame under the TCU/ TCD unit. You will activate the tuning by switching the e-bike off and on twice. After that, the tuning is still 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, you will increase the maximum speed limit by 5 km/h (some types of displays may round up the number to the nearest whole number). The last displayed limit will be saved after 5 seconds of inactivity. The set limit must be confirmed by turning the e-bike off and on twice. You can check the currently set maximum speed limit by pressing the + - + - button combination. Warning Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use of SpeedBox products. Electric bikes equipped with SpeedBox products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with SpeedBox products can be used exclusively on private property and entirely at one’s own risk. The use of SpeedBox may void the warranty of your ebike. We strongly recommend using other safety features and protective gear to prevent injuries. If you want to uninstall SpeedBox (e.g. to update the firmware): 1) Set the maximum assistance speed to 25 km/h by successively switching the modes three levels down and then three levels up. Then save the setting by turning the e-bike off and on twice. 2) Turn off the e-bike again and uninstall the SpeedBox from the e-bike frame. 3) Update the software if you need. 4) Install the SpeedBox back into the e-bike and then switch the e-bike off and on twice. After that, the tuning will be still active.
