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 in the diagonal

Color screen

Optimal resolution and color depth

Minimalist

Information you really need

Trick Check

Show what you can do: Trick Check makes your skills measurable. Your tricks are automatically recognized, shown live on the display, and your best performances are saved in the eBike Flow app.¹

Discover Trick Check

Don't worry about your display – Purion 400 is designed for fast rides.

Open overlay

Clear design and brilliant color 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 pedaling: The smart walk assistance feature helps you push your eBike more easily. If you stop, Hill Hold is activated, 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 the hill start assist, you can set off again in a relaxed manner, even when fully loaded.

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Purion 400 shows you 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 syncs it with Strava or Apple Health. This allows you to track your heart rate on Purion 400 while riding.

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, synced with Strava or Apple Health. With Flow+², you can also analyze your own power and riding mode usage.

Discover Flow+

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

Customize your riding modes in the eBike Flow app. Determine support, dynamics, and torque, for example. Choose your favorite 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 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“
Colour screen	j
Max. typical brightness	1,000 cd/m²
Handlebar diameter (with Display Mount kit)	1.25"/1.4"
Protection class	IP55, protected against dust and water splash
Operating temperature	23 °F to 104 °F
Power supply (with eBike system)	eBike battery
Charging station for external devices	No
Dimensions (L x W x H)	Approx. 1.3" x 2.3" x 0.9"^*⁴
Weight	Approx. 1 oz.^*⁴
Brightness control	j
Notification tones	j
Number of buttons	no buttons
Languages	English, German, Dutch, French, Italian, Spanish, Portuguese, Japanese, Korean, Traditional Chinese, Swedish, Danish, Polish, Czech and Norwegian.

^*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 oz. 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 including camera bump and case with the following dimensions (L x W x D): 5.3-6.7" x 2.7-3.1" x 0.3-0.5" and a total weight of up to 9.2 oz. incl. cover. Not suitable for foldable smartphones and smartphones with flip covers and case covers. Depending on the case, the inductive charging function may be limited.
^*¹⁰ without mount
^*¹¹ automatic brightness via light sensor or manually adjustable

Purion 400

The compact display for your electric mountain bike.

The smart system
On the handlebar
Diagonal 1.6”
Color screen

Current product

Kiox 300

The smart companion for performance riding.

The smart system
On the handlebar, removable
Diagonal 2.0”
Color screen

Go to 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 active by default on the Kiox 300, Kiox 500 and Purion 200 displays and must be activated 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 apply.
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