The Bosch Purion 400 Display BHU3500 is the minimalist display for Smart System e-bikes Ñ compact, rugged, and perfectly positioned for eMTB use where a larger display would be vulnerable to impacts. At 1.6" it shows exactly what you need and nothing you don't, tucked safely into the handlebar triangle.

Key Features

• 1.6" compact colour display Ñ clean, distraction-free readout
• Splash- and dust-protected to IP rating
• Impact-secured in the handlebar triangle Ñ survives the crashes eMTB riders actually have
• Ideal for eMTB and trail use
• Wired connection to the motor for rock-solid reliability

Compatibility

Compatible with Bosch Smart System (BES3) motors: BDU3142, 3143, 3144, 3145, 3320, 3340, 3360, 3741, 3741 CX, 3761 CX Race, 3840 CX. Not compatible with the Speed variant BDU3781 or with older BES2 systems.

Who Is The Purion 400 For?

eMTB riders who want display simplicity and maximum durability, road and trekking riders who prefer a minimalist cockpit, and anyone who values a wired connection over Bluetooth dependence. The Purion philosophy has always been "less is more" Ñ the 400 brings that ethos into the Smart System era with a compact colour screen.

Replacement Display Only

This listing is the display unit itself Ñ mounting hardware is reused from the existing installation. If you're installing a Purion 400 for the first time, see the Purion 400 Retrofit Kit in 31.8 mm or 35.0 mm. Genuine Bosch OE with full warranty.