SHIMANO EP8 (01) PDF Document

To ensure the safety of your SHIMANO EP8 E-BIKE, make sure to also refer to the user’s manual for each product such as the battery, battery charger, cycle computer, and switch unit.

Do not disassemble or modify the SHIMANO EP8 product. This may cause the product to not operate correctly, and you may suddenly fall and be seriously injured.

Be sufficiently familiar with how to start the power assisted bicycle before riding on busy streets. You may start the bicycle unexpectedly, which may result in an accident.

Be careful not to let the hemming of your clothes get caught in the chain while riding. You may fall and be seriously injured.

Keep your fingers away from the chainrings, sprockets, and chain. They can be seriously injured if caught in the drive train. For DU-EP801 and DU-EP600, please note that when FREE SHIFT is enabled, the chainrings may rotate due to the operation of the drive unit, even when you are not pedaling.

Ensure that head and tail lights can turn on before riding the bicycle.

Be sure to remove the battery and charging cable before wiring or attaching parts to the bicycle. Failure to do so may cause an electric shock.

Do not touch the drive unit when it has been continuously used for a long period of time. The surface of the drive unit becomes hot and could cause burns.

Clean the chain with an appropriate chain cleaner regularly. Intervals between maintenance depend on the use and riding circumstances.

Never use alkali- or acid-based solvents such as rust cleaners. If those solvents are used the chain might break and cause serious injury.

Be sure to follow the instructions provided in the manuals when installing the product. Only use SHIMANO genuine parts. If a component or replacement part is incorrectly assembled or adjusted, it can lead to component failure and cause the rider to lose control and crash.

Never modify the system. Doing so may cause a system error.

Use the product under the supervision of someone responsible for safety, and only as instructed. Do not allow anyone (including children) with reduced physical, sensory, or mental capacity, or those without experience or knowledge, to use the product.

Do not allow children to play near the product.

If any malfunction or trouble occurs, consult the place of purchase.

For any questions regarding methods of installation and maintenance, please contact your place of purchase.

For installation and adjustment of the product, consult the place of purchase.

Be sure to attach dummy plugs to any unused E-TUBE ports.

The components are designed to be fully waterproofed to withstand wet weather riding conditions; however, do not deliberately place them into water.

Do not clean the bicycle with a high-pressure wash. If water gets into any of the components, operating problems or rusting may result.

Do not turn the bicycle upside down. There is a risk of damage to the cycle computer and switch unit.

Handle the components carefully, and avoid subjecting them to strong shock.

Although the bicycle still functions as a normal bicycle even when the battery is removed, the light will not turn on if it is connected to the electric power system. Be aware that using the bicycle under these conditions will be considered non-observance of the road traffic laws in Germany.

When carrying the assist bicycle in a car, remove the battery from the bicycle and place it on a stable surface in the car.

Contact the place of purchase for updates of the component software. The most up-to-date information is available on the SHIMANO website.

Products are not guaranteed against natural wear and deterioration from normal use and aging.

For maximum performance we highly recommend SHIMANO lubricants and maintenance products.

Do not use the thinners or harsh solvents to clean the products. Such substances may damage the surface. When cleaning the products, use a cloth moistened with a neutral detergent diluted with water.

The chainrings and sprockets should be periodically washed with a neutral detergent. In addition, cleaning the chain with neutral detergent and lubricating it can be an effective way of extending the life of the chainrings, sprockets, and the chain.

Use a damp, well wrung out cloth when cleaning the battery and plastic cover.

Components that support Bluetooth LE are required to connect the bicycle to a smartphone. Using E-TUBE PROJECT Cyclist enables you to perform a range of tasks, such as customizing individual components or the system, or updating firmware.

E-TUBE PROJECT Cyclist: Application for smartphones

Firmware: Software inside each component

The proper level of assistance cannot be achieved unless the proper settings have been made (proper adjustment of the chain tension, etc.), so consult with the place of purchase.

Before riding the bicycle, check the following items. If any problems are found, consult your place of purchase or a distributor.

Does the drive train perform gear shifting smoothly?

Is there any looseness or damage in the component parts?

Are the components securely installed to the frame/handlebar/stem, etc.?

Do any abnormal noises occur while riding?

Is there sufficient charge remaining in the battery?

Avoid wearing clothing that may get caught in a chain or wheel, as this may cause an accident.

Pursuing the bicycle-like feel: With its lightweight and compact design, the drive unit is meant to provide a bicycle-like feel with reduced operation noise and powerful output.

Improved customization: Automatic gear shifting is compatible with both the assist profile and the rear derailleur, enabling a wide range of customization.

Compatibility with a wide range of bicycle categories: From sport riding and city cycling to cargo bicycles designed for transporting goods, assist bicycles can be used for many applications.

Select the level of assistance from three modes according to riding conditions. One of the following two combinations is set by default:

BOOST / TRAIL / ECO: A combination of assist modes for sport riding.

HIGH / NORMAL / ECO: A combination of assist modes for comfortable riding in urban settings.

The following table shows the assist mode, level of assistance, and main application:

* 1 Depending on the cycle computer, NORM is displayed.

TECH TIPS:

When battery levels are unstable, or when assist power is not required, you can turn assist mode to OFF.

The riding comfort of the assist bicycle is determined by the relationship between the force applied to the pedals and the drive unit output, and the maximum output of the drive unit. [Fine tune] supports a wide range of riding conditions with up to 15 levels of settings.

The number of settings registered by default depends on the bicycle.

The settings and gear position can be customized in E-TUBE PROJECT.

Automatic gear shifting detects riding conditions with a sensor to further improve riding via computer-controlled automatic gear shifting. Automatic gear shifting is available for bicycles with a compatible electronic shifting unit. The settings that can be configured differ for the rear derailleur and internal geared hub. With automatic gear shifting, you can register up to two combinations of settings and use the shift switch to switch between them according to riding conditions.

TECH TIPS:

Certain 10/11-level gear shifting models of Di2 rear derailleurs are compatible with automatic gear shifting. For details, check the product lineup on the SHIMANO product website .

Only 5/8-level gear shifting models of Di2 internal geared hubs are compatible with automatic gear shifting.

The rear derailleur operates when the cassette rotates, to complete gear shifting by changing the sprocket where the chain is. Therefore, it is necessary to perform gear shifting operations while pedaling.

FREE SHIFT is a function for successfully completing the gear shifting operations of the rear derailleur when the rider is not pedaling. Even if the rider is not pedaling while riding, the drive unit rotates the chainring according to the gear shifting operations of the rear derailleur, and moves the chain to rotate the cassette.

FREE SHIFT can be enabled with automatic gear shifting operations ([AUTOMATIC FREE SHIFT]) and manual gear shifting operations performed by the rider ([MANUAL FREE SHIFT]).

TECH TIPS:

Drive unit operation is required to enable FREE SHIFT. Therefore, if the assist function stops because the battery level is too low, FREE SHIFT will also stop functioning.

For safety reasons, FREE SHIFT is designed to not operate well when the rear wheel of the bicycle is raised off the ground with a workbench, etc.

FREE SHIFT can be set for a rear derailleur.

[AUTO SHIFT while pedaling]: Turn automatic gear shifting while pedaling ON or OFF. When turned ON, you can use the switch unit to change to automatic gear shifting.

[AUTOMATIC FREE SHIFT]: Set FREE SHIFT via automatic gear shifting ON or OFF. When set to ON, automatic gear shifting also operates when the rider is not pedaling.

[MANUAL FREE SHIFT]: Set FREE SHIFT via manual gear shifting ON or OFF. When set to ON, gear shifting operations can be performed normally when the rider is not pedaling.

[Shift timing]: Set the gear shifting timing during automatic gear shifting, based on the cadence. You can also set the gear shifting response when the system is subject to a heavy load on a steep rising slope in [Climbing response].

[Riding scene]: You can select the automatic gear shifting characteristics according to the style of riding.

MTB is suitable for rough terrain with many steep slopes and speed changes.

Pavement is suitable for riding on paved surfaces with few steep slopes in city streets. It is also suitable for situations where the bicycle frequently stops due to traffic signals.

[Start gear]: Set the lower limit for the gear position to automatically shift to when starting from a stop during riding. When subject to a heavy load on a rising slope, the system makes starting from a stop even easier by shifting to a lower gear position than that set here.

TECH TIPS:

The [Shift timing] setting may be able to be changed from the cycle computer, depending on the cycle computer you are using.

[Shift timing]: Set the gear shifting timing during automatic gear shifting, based on the cadence. You can also set the gear shifting response when the system is subject to a heavy load on a steep rising slope in [Climbing response].

[Start mode]: Automatically shifts to the set gear position when the bicycle is stopped to make it easier to start pedaling again. If you gear shift into a gear that is lower than the gear position set while the bicycle is stopped, the gear will not shift up automatically.

TECH TIPS:

The [Shift timing] and [Start mode] settings may be able to be changed from the cycle computer, depending on the cycle computer you are using.

For a bicycle with a Di2 internal geared hub, [Start mode] can also be enabled for manual gear shifting.

You cannot use the battery immediately after shipment.

The battery can be used after charging it with the designated battery charger.

Be sure to charge it before use. The battery can be used when the LED on it turns on.

Please read the SHIMANO STEPS Special Battery and Parts User’s Manual for how to charge and handle the battery.

TECH TIPS:

When the battery level is low, system functions will be shut off in the following order:

(1) Power assist/FREE SHIFT

(2) Electronic/automatic gear shifting, Anti-lock Braking System (ABS), light

* FREE SHIFT and the Anti-lock Braking System (ABS) are only supported by the DU-EP801 and DU-EP600.

Charge the battery.

Example of external type battery: The charging status is shown by the LED. Lit up indicates charging status.

Example of integrated battery: The charging status is shown by the LED. Lit up indicates charging status.

The table below shows the LED indication and charging status:

Turn the power ON.

To turn OFF the power, repeat this procedure.

Wait a while before pressing the power button when turning the power ON again after the power has been turned OFF.

Select assist mode.

When the power is turned OFF, the assist mode resets to [OFF].

The table below shows the display for the [BASIC] assist profile based on the LED2 indicator:

TECH TIPS:

Depending on the assist bicycle, you change the assist mode with the function switch of the satellite system ON/OFF switch. Refer to Satellite System ON/OFF Switch User’s Manual for details.

Get on the bicycle and start riding. Turn the pedals to start assist.

CAUTION:

Be sure to learn the brake control characteristics and other characteristics. Brake handling may vary slightly depending on the bicycle you are using.

Turn the power OFF and park your bicycle when you arrive at your destination.

SHIMANO STEPS has a function where assist works even when you are walking and pushing the assist bicycle.

Depending on the region of use, you may not be able to use it due to the laws of the region. In this case, the operations described here are disabled.

This function cannot be used with bicycles that do not have assist switch installed.

Step 1. Stop and switch to walk assist mode. Press and hold Y on the assist switch (left side of the handlebar) until it reaches the following state:

Cycle computer: [WALK] is displayed

5-switch type: LED2 lights up blue

TECH TIPS:

If nothing is done for one minute after switching to walk assist mode, it will switch back to the assist mode that was selected before switching.

Step 2. Carefully push the bicycle while pressing Y again. The drive unit operates while Y is pressed to assist you in pushing the bicycle. When the drive unit is operating, the LED and screen displays change as shown in the figure.

NOTICE:

Walk assist operates at a maximum of 6 km/h. Be careful because the bicycle starts moving just by pressing Y.

TECH TIPS:

During electronic gear shifting, the level of assistance of walk assist and speed are controlled by the current gear position.

Step 3. Exit walk assist mode. Press the button (X button) on the upper side of the assist switch (left side of the handle).

Depending on the assist bicycle used, you may be able to switch between automatic and manual gear shifting.

Automatic gear shifting: Automatically shifts gears based on riding conditions. Manual gear shifting operations are possible even when automatic gear shifting is set.

Manual gear shifting: This is standard electronic gear shifting. Gears are shifted by operating the shift switch.

Switch between automatic and manual gear shifting.

The shift switch (right side of the handlebar) is operated as follows, depending on the type.

3-switch type or MTB type shift switch: Press the A button

2-switch type shift switch: Press and hold X and Y until the display of the cycle computer switches

Shifting switches between automatic and manual gear shifting as shown below.

When there is one automatic gear shifting setting:

Manual gear shifting is indicated by ECO (or current mode) on the display.

Automatic gear shifting is indicated by ECO (or current mode) and “A” on the display (e.g., AUTO1 or AUTO2 if two settings are configured).

TECH TIPS:

The display will differ depending on the model of cycle computer. Refer to the user’s manual of your cycle computer.