| Brand | Hercules |
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| Model | Robert/a I-R8 Belt Wave Electric Bike |
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| Color | black matt |
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| Configurations | 45 cm / 500 Wh; 50 cm / 500 Wh; 55 cm / 500 Wh; 60 cm / 500 Wh |
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| Frame material | Aluminium |
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| Wheel size | 28 inch |
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| Crankset | FSA CK-220 |
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| Tires | SUPERO 50-622, Optima safe, puncture protection, 50-622 |
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| Fork | SR SUNTOUR NEX-E25, 63 mm travel, adjustable / 26”: NEX-DS |
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| Motor | Bosch Active Plus, GEN3, 250 Watt, 50 Nm |
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| Motor rated power (W) | 250 W |
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| Motor torque (Nm) | 50 |
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| Motor assistance | up to 25 km/h |
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| Battery | Bosch PowerTube horizontal 500 |
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| Battery capacity (Wh) | 500 Wh |
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| Battery capacity | 500 Wh |
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| Charger | Bosch 2 A |
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| Display | Bosch Intuvia |
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| Shift levers | SHIMANO Revoshifter |
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| Number of gears | 8 speed |
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| Drivetrain | Hub gear | 8 speed | Coaster brake |
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| Cassette | GATES ® CDX 24T |
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| Brakes | Hydraulic disc brake |
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| Front brake | TEKTRO HD-T280 |
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| Rear brake | TEKTRO HD-T280 |
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| Front brake disc | TEKTRO TR180-35A, 180 mm |
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| Rear brake disc | TEKTRO TR160-47, 160 mm |
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| Saddle | Comodoro City |
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| Seatpost | KALLOY SP-383, 350 mm, 45 mm suspension travel |
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| Handlebar | Ergo City, AL, 640 mm / 35° backsweep, 31.8 mm |
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| Stem | A-Head, adjustable |
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| Headset | semi-integrated |
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| Grips | Ergo, integrated clamping |
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| Pedals | wellgo, C-157, non-slip |
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| Front light | HERCULES FS-50, LED, up to 50 lux |
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| Rear light | COMUS, R-232EB, LED |
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| Fork travel | 63 mm |
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| Manufacturer listed weight | 27 kg |
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| Permissible total weight | 135 kg |
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