Whistle B-rush c12.5
The all-new 2025 Whistle B-Rush C12.5 is truly the e-MTB for the most demanding riders.
New Bosch CX motor with a high-performance 800 Wh battery, all mounted in the all-new Carbon Lite frame using Toray T700 and Toray T800 carbon fibers. The result is exceptional, 1300g saved on previous models. Thanks to its gold and black color, this new frame is perfectly matched to the high-end Fox components, such as the all-new FOX 38 Float Factory Grip X fork and the FOX Float X2 Factory shock.
Specifications
Frame: Full Carbon Lite Toray T800, 29", integrated batteries, tapered, internal routing, 160 mm back drop, 12×148 mm E-Thru, UDH belt
Motor: New Bosch Performance CX, Smart System, 36V, 250W, 2.9Kg
Maximum torque: 85 Nm
Battery: New Powertube 800Wh, Smart system, 3.9kg
Charger type: 4 Ah
Maximum assisted speed: 25km/h
Display: Bosch Purion200
Mode: Eco / Tour+ / EMTB /Turbo
Fork: VTTAE+ Fox 38 Float Factory, Air, GRIP
Shock: Fox Float X2 Factory, EVOL, LSR, HSR, 2-position lever, 230×65
Crankset: FSA CK320, 34 teeth megatoothed
Derailleur: Shimano XT RD-M8100 SGS Shadow Plus, 12 s
Shifter: Shimano XT SL-M8100 Rapidfire-Plus, 12s
Brakes: Shimano XT BR-M8120, four pistons, RT-MT800 rotor 203 mm / 203 mm
Casette: Shimano CS-M8100, 12v, 10/51
Wheels: Mavic E-Deemax 29"
Handlebar: RaceFace Turbine racing, length 780 mm, diameter 35 mm, rise 40 mm
Seatpost: Fox Transfer Factory Kashima, Diameter, 31.6 mm, remote control
Saddle: Selle Royal SRX
Tire: Schwalbe Tacky Chan EVO, Addix Soft, Super Trail, TLE, 29″x2.40″
Size: 40 - 44 - 48 - 52
Color: Black/Gold
Weight: 24.5 kg
