Byte
1 kW
Number One
A few years ago I build this E-bike: CLICK. The last few months I spent in CAD software working on an optimised version of this bike. My goal was to lower the centre of gravity, keep it lightweight, increase the reliability, improve the ergonomics, make it very fun to ride and – of course - make it look awesome. I came up with the idea of putting the battery packs under the frame between the pedals and the top of the front fork. I also added the electronics (throttle converter, wires, battery eliminator circuit etc.). This whole package is sandwiched between three aluminium plates. At the top of this sandwich package, there is an extra plate consisting of the main power switch, some regular switches and a voltage meter.
The very powerful brushless motor and drive unit is placed in the triangle of the frame. The drive unit includes a high ratio gearing achieved by a total of 4 sprockets, one of them is a White Industries freewheel. The motor as well as the sprockets are covered by a plastic cover. The motor is actively cooled by a small fan, this is only needed in very hot circumstances (outside temperature > 30 degrees Celcius)
Most of the parts are made of aircraft grade aluminium 6061 or aluminium 5053, making it very lightweight and very strong. The parts are custom CNC milled, waterjet cut or 3D printed out of black ABS.
A few specifications:
Bicycle: Bergamont Kiez Dirt
Motor: AlienPower 80-110 130kv brushless outrunner
ESC: Castle Creations 160HV
Battery: Lithium Polymer 10S 37V 16.000mAh
Power output: 11.000 Watts (15 horsepower)
Top speed: About 70 km/h
Frame Weight: About 15kg
Total Weight: Exactly 25kg including all components (battery, motor, wiring, custom parts etc.); all parts attached increase the weight by only 10kg!
Range: About 25-30 km without pedalling
I made a few renders of the frame including the components for all electronical and mechanical parts as you can see below. The bike should be finished and ready to drive in the first weeks of January. I will make pictures of the building process.
So, why is this bike called Number One? Because I will build a Number Two
A few years ago I build this E-bike: CLICK. The last few months I spent in CAD software working on an optimised version of this bike. My goal was to lower the centre of gravity, keep it lightweight, increase the reliability, improve the ergonomics, make it very fun to ride and – of course - make it look awesome. I came up with the idea of putting the battery packs under the frame between the pedals and the top of the front fork. I also added the electronics (throttle converter, wires, battery eliminator circuit etc.). This whole package is sandwiched between three aluminium plates. At the top of this sandwich package, there is an extra plate consisting of the main power switch, some regular switches and a voltage meter.
The very powerful brushless motor and drive unit is placed in the triangle of the frame. The drive unit includes a high ratio gearing achieved by a total of 4 sprockets, one of them is a White Industries freewheel. The motor as well as the sprockets are covered by a plastic cover. The motor is actively cooled by a small fan, this is only needed in very hot circumstances (outside temperature > 30 degrees Celcius)
Most of the parts are made of aircraft grade aluminium 6061 or aluminium 5053, making it very lightweight and very strong. The parts are custom CNC milled, waterjet cut or 3D printed out of black ABS.
A few specifications:
Bicycle: Bergamont Kiez Dirt
Motor: AlienPower 80-110 130kv brushless outrunner
ESC: Castle Creations 160HV
Battery: Lithium Polymer 10S 37V 16.000mAh
Power output: 11.000 Watts (15 horsepower)
Top speed: About 70 km/h
Frame Weight: About 15kg
Total Weight: Exactly 25kg including all components (battery, motor, wiring, custom parts etc.); all parts attached increase the weight by only 10kg!
Range: About 25-30 km without pedalling
I made a few renders of the frame including the components for all electronical and mechanical parts as you can see below. The bike should be finished and ready to drive in the first weeks of January. I will make pictures of the building process.
So, why is this bike called Number One? Because I will build a Number Two