Introducing the All-New EPAspeed Box for Giant and Yamaha Mid-Drive Motors – Smarter, Sleeker, Stronger.
The new EPAspeed Box for Giant and Yamaha is the result of over a year of focused development and rider feedback. We’ve completely engineered the device to deliver faster installation, improved durability, and speed accuracy — all while maintaining our signature contactless tuning technology.
Fully compatible with all Giant and Yamaha mid-mounted motors
The EPAspeed Box for Giant and Yamaha is engineered to safely unlock your e-bike's potential, boosting your maximum assisted speed up to 50 km/h
Sensor Compatibility Notice:
If your e-bike is equipped with the speed sensor marked with a red "X", you will require this specific module (LINK)
If your e-bike is equipped with the classic-style speed sensor (as shown in the images marked with a green "V") but it is located on the Dropout area, you will require this specific module (LINK)
How It Works
Contactless Tuning – Safe, Simple, Reversible
The EPAspeed Box is a wireless, contactless tuning device that overrides the 25 km/h limit by transmitting a modified signal — without touching or altering any of your e-bike’s software or motor circuitry. It installs in seconds and removes just as easily.
Speed Scaling Display
To ensure system stability, the actual speed is displayed using a 1:2 ratio:
Display shows 20 km/h → Real speed is 40 km/h
Display shows 25 km/h → Real speed is 50 km/h (±1 km/h)
NOTE: The EPAspeed Box is the only 100% contactless tuning module on the market today that preserves speedometer accuracy, even while transmitting a modified signal.
It’s completely self-contained, requiring no GPS-based accessories like smartphones or bike computers to calculate your actual speed.
Fast Installation. Full Reversibility.
Installs in Seconds — Restores Instantly
The EPAspeed Box connects directly to your e-bike’s speed sensor to bypass the 25 km/h restriction. Remove it anytime to restore your e-bike to its original factory settings, with no trace left on the motor, software, or display.
Installation – No Tools, No Cables, No Hassle
To install, simply slide the EPAspeed Box over the speed sensor near the rear wheel. It will click securely into place — no zip ties or mounting hardware needed.
After installation, reposition the spoke magnet toward the edge of the sensor casing (in the direction of the snap-lock). You’re ready to ride.
To revert to factory settings, remove the EPAspeed Box and reposition the magnet to its original location.
What’s New in the EPAspeed Box for Giant and Yamaha?
Streamlined, Reinforced Housing
The casing design is slimmer and it is built with improved structural integrity to offer maximum resistance against vibration, impact, and wear — ensuring long-term durability in real-world e-MTB conditions.
Integrated Snap-Lock Fastening System
The snap-lock mechanism allows quick and secure installation with one hand. It’s precision-molded for a perfect fit, significantly reducing the risk of stress or breakage during installation, use, or removal. There is no need for zip ties or mounting hardware.
Enhanced Casing Material
The housing is cast using a potting compound developed for the automotive industry, offering superior moisture protection, thermal stability, and mechanical resilience.
Carbon Fiber Look Finish
The exterior of the EPAspeed Box features a premium carbon fiber effect finish, giving the unit a high-end appearance that matches its performance.
Upgraded Power Source
The box is powered by a AAA battery. In house and field test shows that the battery can last up to 7000km.
Double Quality Control
Every EPAspeed Box undergoes dual-stage quality testing — both before and after casting — to ensure flawless function, finish, and reliability out of the box.
Engineered In-House. Quality You Can Trust.
Every EPAspeed Box is proudly developed and manufactured in-house, giving us complete control over quality, performance, and reliability. Each unit is individually tested before and after casting to meet our highest standards.
This is our most advanced EPAspeed Box yet — designed for real-world riding, trusted by thousands across Europe and Australia.
What is in the package:
Your EPAspeed Box Kit includes everything you need for a fast, tool-free installation:
1× EPAspeed Box tuning module
1× Dropout Kit
1× Spoke magnet with thumb screw
1× AAA battery (pre-installed or included)
Technical data
Dimensions: 58 x 41 x 14 mm
Weight: EPAspeed Box 28 g
Weight battery: 37 g
Battery: 1.5 V AAA battery (IEC R03)
