A fully charged Purion 400 eMTB with 80% battery and a display showing 21.4 km/h.

On the handlebar

Compact and protected

1.6 inches

Display size measured diagonally

Colour screen

Optimal resolution and colour depth

Minimalist

Information you really need

Trick Check

Show everyone what you’ve got: Trick Check makes your skills measurable. Your tricks are recognised automatically and shown live on the display. Your best performances are saved in the eBike Flow app.¹

Discover Trick Check

No need to worry about your display – Purion 400 is designed for high-speed rides.

Open overlay

Clear design and a brilliant colour display – Purion 400 ensures readability at a glance.

Open overlay

Control the Purion 400 via the LED Remote or Mini Remote in conjunction with the System Controller.

An eMountain bike rider pushes his eBike up a dirt slope in the forest.

Walk assistance

Hold down the minus button and start walking: Thanks to smart walk assistance, you can push your eBike more easily. If you stop, Hill Hold will be enabled, preventing your bike from rolling back unintentionally.

A man is riding an eMountain bike up a steep slope, surrounded by a misty landscape.

Hill start assist

Put your foot on the pedal and hold down the minus button: With hill start assist, you can ride off in relaxed manner – even when fully loaded.

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Purion 400 displays your ABS mode, such as ABS Trail Pro or ABS Race. It also informs you about the status and activity of the ABS mode, allowing you to brake more confidently on the trail.

Discover ABS Pro

An eBike with an onboard computer displaying "ABS" and "eMTB". It is set to "Trail Pro" mode.

When you set off, the eBike Flow app automatically records your ride data and synchronises it with Strava or Apple Health. This allows you to track your heart rate on Purion 400 while riding your eBike.

Looking over the shoulder of a man checking his stats in the eBike Flow app.

In the statistics, you'll find valuable insights into your tricks, tour and fitness data, synchronised with Strava or Apple Health. With Flow+², you can also analyse your own performance and riding mode usage.

Discover Flow+

A person holds a smartphone and checks the statistics in the eBike Flow app.

Customise your riding modes from within the eBike Flow app. Determine e.g. support, dynamics and torque. Choose your favourite riding modes and determine your drive unit's performance values yourself.

Discover eBike Flow app

View of a smartphone where the four favorite riding modes are selected.

Lock and unlock your eBike automatically using your smartphone or display as a digital key. You can also unlock your eBike manually using a button on the home screen.

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Close-up of the Purion 400, as you click through the individual screens.

Use

Find out more

Technical data
	Purion 400
System	The smart system
Screen size	Diagonal approx. 1.6"/4.1 cm
Colour screen	j
Max. typical brightness	1,000 cd/m²
Handlebar diameter (with Display Mount kit)	31.8 mm/35.0 mm
Type of protection	IP55, protected against dust and water jets
Operating temperature	- 5 °C to 40 °C
Power supply (with eBike system)	eBike battery
Charging station for external devices	No
Dimensions (H x W x D)	Approx. 33 x 59 x 23 mm^*⁴
Weight	Approx. 27 g^*⁴
Brightness control	j
Notification tones	j
Number of buttons	no buttons
Languages	English, German, French, Spanish, Portuguese, Italian, Dutch, Danish, Swedish, Norwegian, Polish, Czech, Japanese, Traditional Chinese for Taiwan, Korean.

^*¹ A smartphone is required and must be provided by the user
^*² Only applies to SmartphoneGrip
^*³ Suitable for smartphones incl. Camera bump and case with the following dimensions (L x W x H): 123 - 175 mm x 67 - 88 mm x 6.8 - 13 mm and a total weight of up to 276 g incl. cover. Not suitable for wallet cases.
^*⁴ Without clamp
^*⁵ Manually adjustable (backlight is not permanently on)
^*⁶ Only applies to SmartphoneGrip Vertical.
^*⁷ The USB-C® cable is not included in the scope of delivery.
^*⁸ Suitable for smartphones incl. camera body and case with the following dimensions (L x W x D): 135–170 mm x 68–80 mm x 7–12 mm and a total weight of up to 260 g incl. case. Not suitable for foldable smartphones and smartphones with flip covers/cases. Depending on the case, the inductive charging feature may be limited.
^*⁹ Depending on the drive unit installed in the eBike and the devices connected to it (e.g. high beam lights), charging may not be possible, or may only be possible to a limited extent.
^*¹⁰ Without mount
^*¹¹ Automatic brightness via light sensor or manually adjustable

Purion 400

The compact display for your eMountain bike.

The smart system
On the handlebar
Diagonal 1.6"
Colour screen

Current product

Kiox 300

The smart companion for sporty adventures.

The smart system
On the handlebar, removable
Diagonal 2.0"
Colour screen

About the product

All displays

Trick Check works with the Performance Line CX (BDU384Y), Performance Line CX-R (BDU384Y), Performance Line CX Race (BDU374Y), Performance Line CX (BDU374Y) and Performance Line SX (BDU314Y) and on the following displays: Kiox 300, Kiox 400C, Kiox 500, Purion 200, Purion 400. Trick Check is not enabled as standard on the Kiox 300, Kiox 500 and Purion 200 displays and must be enabled manually under > "Settings > Display > Trick Check".
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The Flow+ subscription is subject to a charge. When using Flow+, the General Terms and Conditions (GTC) apply.
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