Now also available with comfort frame

All new at BMC: 257 AMP is the name of the new urban e-bike with Bosch’s drive system

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Until now, the Swiss company BMC has followed its own path when it comes to urban e-bikes: on the one hand, the Alpenchallenge AMP models are equipped with Shimano’s electric drive system, while most of the competition uses the popular Bosch motors. On the other hand, the battery was not integrated completely, but only partially into the frame. This design also made it possible to build fairly lightweight bikes despite the powerful mid-drive system. However, the look of this design was rather unusual — which is possibly one reason that BMC now relies on a much more conventional design for the new bikes.

257 is the name of the new urban e-bikes, in which the battery is now integrated into the down tube of the frame – but it can still be removed. But not only that, there is also an update in the drive system. Instead of Shimano, this series now also relies on Bosch: thus, the Performance Line CX motor is used here, and Bosch’s PowerTube with 625 Wh with the familiar Kiox display is used as the battery. The new Bosch Smart System has not yet made its debut here.

BMC 257 AMP AL ONE Urban E Bike 2023
BMC 257 ONE with hub gears and belt drive

For the shifting BMC offers two variants to choose from: the BMC 257 AL Two comes with a Shimano derailleur type Deore with 12 gears. The range of the rear cassette is huge with 10-51 (especially since the motor already offers more than enough power).

For commuters, however, the BMC 257 AMP AL ONE should be even more interesting: here you combine a maintenance-free Shimano Alfine hub gears and 8 gears with the largely maintenance-free toothed belt Gates Carbon Drive. The interesting question here is whether the power of the Bosch motor is reduced – because actually Shimano’s Alfine hub gear does not handle such high torque.

The frame of all 257 bikes is conventionally made of aluminum, as is the fork. However, the cockpit is innovative: although all cables and lines are still visibly routed outside, but a special stem is used: Together with RedShift, BMC has developed the ICS MTT x Redshift Suspension Stem, which offers 20 mm travel and thus promises a more comfortable ride. As brakes, the hydraulic disc brakes from TRP are installed, the tires are from Pirelli and are 37 mm wide. In terms of weight, the 257 ONE with hub gears weighs in at 22 kg, while the TWO with derailleur gears is 300 grams lighter.

With mudguards, kickstand and an integrated lighting system (with a Lezyne headlight), the bikes offer full commuter equipment — which also includes inconspicuously integrated bag holders on the rear mudguard. However, the fact that the bikes are by no means inconspicuous is due to the two-tone paint job: the red painted mudguards certainly no one overlooks!

At 5,299 euros, the BMC 257 AMP AL Two is the cheaper of the two models. Who, however, the hub gear with toothed belt would like, must reach for the BMC 257 AMP AL ONE for 5,699 euros. By the way, both models are now also available with a comfort frame in trapezoid shape — and that is also new at BMC!

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