Trek launches super-powerful Domane+ HP with 28mph top speed

The new Domane+ HP is built around Bosch's full-fat Performance Speed motor system and a 500Wh battery

Trek Domane+ HP electric bike

Trek has launched the Domane+ HP, a higher-powered version of its Domane+ electric road bike that launched just over a year ago. The bike is based on a Bosch Performance Speed mid-drive motor and boasts up to a claimed 150 miles of range. 

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This is the third e-bike to bear the Domane name in Trek’s range. The original Domane+ was based on a Bosch Performance Cruise motor, with up to 250w of assistance. 

This was followed by the Domane+ LT, which is a lighter version of the bike and based on Fazua’s motor system

Trek Domane+ HP electric bike motor
The latest bike is built around a Bosch Performance Speed motor.
Anders Ahlberg (Trek)

The latest bike is built around a full-fat Bosch Performance Speed motor that’s paired with the brand’s full-colour Kiox controller. This produces a claimed 75Nm of assistance and boasts a top assisted speed of 28mph.

A range extender is also available to double the bike’s 500Wh battery life. Adding this battery brings the bike’s range up to a claimed 150 miles. 

That 28mph top speed means the bike will be categorised as a class 3 ‘speed pedelec’. A regular e-bike with the European-standard 25kph top speed is a class 1 ‘pedal assist’ bike. 

Class 3 bikes are more common in the US, which has less stringent laws around electric bikes. Because of this, the Domane+ HP is more focused on the US market.

The bike will not be for sale in the UK and will be sold on a case-by-case basis in each of Trek’s European markets.

Trek Domane+ HP electric bike motor lights
The bike features neatly integrated front and rear lights.
Anders Ahlberg (Trek)

While the bike is outwardly very different from the non-assist version of the Domane, the two bikes share many of the same features. 

The Domane+ HP retains the regular Domane’s signature front and rear ISO Speed decoupler. This system introduces a pivot to the seat cluster and head tube, allowing the seat mast and fork to freely flex fore and aft. 

It features the new seat mast design that was introduced with the latest generation of the Domane. This reverses the usual seat mast arrangement, with a specially shaped seatpost slotting into what is essentially an extended seat tube, and is said to provide a smoother ride while reducing weight.

Like the Domane+, the new bike also features integrated front and rear lights. 

Trek Domane+ HP electric bike motor top-end build
The top-end build comes in at a heady $9,700.
Anders Ahlberg (Trek)

All of the bikes in the Domane+ HP range are based around Shimano’s GRX gravel/adventure groupset in a 1x arrangement. 

Builds start at $7,000 for the Domane+ HP with an alloy Bontrager Paradigm Comp wheelset and mechanical GRX, rising to a heady $9,700 for a GRX Di2-equipped bike with a Bontrager Aeolus Pro 3V carbon wheelset. 

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The bike is also available through Trek’s Project One customisation programme.