novelty test | EXe Fuel Journey: Evolution(R)!

As with any electric motor, the basis of it all is a ring of copper coils that creates a magnetic field. This is a proven technology already in use by TQ, which can easily be sized depending on the purpose and use of the end product.

A system of concentric rings, with the crank axis as the common axis, is built around this. They react when needed, and the integrated freewheel ensures there is no resistance when no action is required of them. The asymmetric force sensor – pushing the pedals to the left and then the right side creates forces on the axle in different directions – electronically activates the motor.

The result is support and training that is similar to a traditional bike. Eliminating the “annoying” noise characteristic of e-bikes was a priority for Trek. With a classic bike, after all, it’s the jungle, rolling, and rubber sounds that dominate the ground. As Trek explains, noise level, in decibels, is one thing, but tone is of great importance to motor perception as well. In this TQ HPR50, engineers sought to “make” a sound that is lower, less perceptible and more pleasurable to the human ear than the high-pitched whistles these actuators typically produce.

A small, but not important, detail for the natural driving feel is that the HPR50 has a narrow Q-factor of 135mm. The entire engine and its electronics are produced in Germany, at the TQ production plant in Inning am Ammersee. Setting up the production line requires a large budget but will provide the necessary flexibility, and since most of the raw materials come from Europe, there is also more stability in terms of delivery times. Given the current situation in the sector, this argument may be important.

Battery, screen and app

The proprietary battery delivers 360 watts of capacity, with an energy density of 316 watts/dm3, the highest on the market today. In other words, that means it’s small and compact, thanks mainly to a BMS management system that has been reduced to its simplest form (removed from the battery box pictured as an example).

For Trek, that also means fewer limitations in the frame design, and an e-bike that (much) looks like a regular bike. The total weight of the engine, battery and accessories (display, steering wheel controls, charging port, …) is only 3.9 kg. For comparison, it is 300g less than the new Fazua Ride 60. The latter offers 10Nm and 70W more, but we know that when it comes to assist, numbers aren’t everything, and electronic management is more important.

The battery itself weighs just 1,830 grams and has a capacity of 360 Wh, which can be further increased via the optional 160 Wh range extender. this is range extender It has the weight of the bottle and especially its dimensions (full) and thus fits easily in the bottle cage. On the frame, the charging port is not located in the classic place below the front triangle but at the top of the bottom of the tube, on the “inside” side. This prevents dirt from getting in and is easily accessible to connect the charger or range extender. Speaking of which, the main battery can be charged in two and a half hours using TQ’s proprietary charger.

The Range Extender can also work as a file Independent power supply.

Thanks to the dual charging ports, the Range Extender can be recharged simultaneously with the battery without having to remove it from the frame. It can also function as a standalone power source. So it’s possible to ride very lightly without the main battery in the down tube…and you can (finally) take your electric bike on board, since disassembled 160W batteries are allowed on flights.

A 2-inch OLED display is integrated into the top tube. It is completely readable from above, almost invisible from the side. One button turns the system on or off and switches between display modes. It is combined with a discreet two-button steering wheel control to activate the assist (or walking assist) modes.

In partnership with TQ, Trek has developed a new Trek Central app that wirelessly connects to the Fuel EXe and allows the user to customize their bike.

Additionally, Trek, in partnership with TQ, has developed a new Trek Central app that wirelessly connects to the Fuel EXe and allows the user to customize the bike. The Trek Central app allows you to change various engine settings, record activities, view tracks, and calculate the remaining range in real time. On the more luxurious model, tire pressure and suspension can also be monitored. However, we haven’t had a chance to try out the app yet as it was only released today.

EXe Fuel: Bike

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