Florentin Vesenbeckh
· 28.03.2025
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No bike category has caused as much outrage among price-conscious bikers in recent years as the light e-MTBs. Top models in the five-digit price range? Quite normal! Logical, because the unique selling point of these bikes is their weight. And lightweight construction is expensive. As a result, the category remained in the absolute premium segment for some time. Now the popular value-for-money brands Cube and Canyon are launching entry-level models for under 5000 euros.
Both come with full carbon frames and attractive weights. Even if Canyon misses the 20-kilo mark: Classic power eMTBs in this price range land at 24 to 25 kilos on average. A drastic difference. Cube even manages 18.7 kilos with its low-cost speedster AMS Hybrid One44 Race. A value that even many high-end light e-bikes can't crack.
E-bikes and lightweight construction is a nonsensical combination for some, because the powerful motor pushes the extra weight away uphill, and the higher weight brings a full trail position and therefore a lot of riding safety downhill. However, active riders in particular complain about the unpleasant sluggishness of heavy e-MTBs. And this is exactly where the Light class can score points. Even in the price range below 5000 euros.
Our two candidates prove it: The handling differs drastically from that of the heavier full-power brothers, and the riding experience is closer to that of a classic mountain bike than to the e-bike feeling. The lightweight Cube AMS in particular is fun and nimble around tight corners and can be hopped from one line to the next with ease.
Cube and Canyon use the same system for the motor and battery. Bosch's Performance SX provides the propulsion. It is not particularly compact compared to the Light and is also not record-breakingly light. However, the peak power is extremely high. With fast and sporty pedalling, the little Bosch is lively and powerful. However, the bikes with this drive are not a carefree tool for long discovery tours. The lower torque of the Performance SX is clearly noticeable on steep climbs. This requires dedicated pedalling and a sporty high cadence. For some, this is a no-go, for others it may be just the right thing.
Disadvantage of the Bosch SX: The motor rattles out of the gearbox on the trail. This means that both bikes are not entirely quiet on descents. Especially for light eMTBs that want to deliver a natural, discreet riding experience, this is a significant drawback.
You also have to compromise on range for the low weight. With 400 watt hours, and on top of that permanently installed in the down tube, the range of the two Bosch SX bikes is significantly less than that of classic e-MTBs. On long tours, especially in the Alps, you have to plan carefully and use the motor power with caution.
Both bikes offer the option of increasing the range a little with an optional additional battery. The Bosch Power More 250 delivers 250 watt hours and can be strapped onto the down tube like a water bottle, weighing 1.6 kilos. The additional battery is connected to the bike's charging port via a cable.
Cube and Canyon prove that the light e-MTB concept can also work in an affordable price range. With their sporty and lively riding feel, these bikes are more mountain bike than e-bike. The overall even more harmonious Cube AMS* can score even higher in terms of weight and handling. - Florentin Vesenbeckh, Deputy Editor-in-Chief BIKE Magazine

Editor CvD