EvNerds
Quartz is a Gearbox and integrated Electric Motor for e-bikes
Kervelo Quartz consists of Kervelo KERNEL 6 or 12 gears Gearbox and intergrated electric motor. KERNEL coaxial gearbox is Innovative, compact, elegant planetary gearbox with 6 or 12 gears with 323% to 545% ratio!
QUARTZ SYSTEM is KERNEL paired with 250 watt Electric Motor
- optimized drivetrain
- native integration of electric motor and transmission
- high reliability with low maintenance
- light & compact
- 4, 6 or 12-speed versions
Technical specifications
| Gears | |||
| Ratios | |||
| Max. input torque |
250 N.m
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| External diameter 1 | |||
| Total width | |||
| Weight 2 | |||
| Motor |
Power: 250W
Torque: 70N.m Voltage: 48V |
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| Battery (option) |
48V / 330 WH
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| Assistance |
4 levels
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| Drive system |
Belt or chain
Standard chain sprocket: 24 teeth |
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| Lubricant oil |
75W-80
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| Waterproof & Dustproof |
IP65
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| Crank interface |
ISIS
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| Frame interface |
Aluminium EN-AW-6061
or steel 4130 CrMo |
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| 1 – Please refer to 3D files for accuracy. | |||
If you are an Ebike builder, this French company is offering 3d files for fitting along with the technical data here
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