Aloha from freezing Poland!
Check out this idea we started working on together with Jurg Lanz owner of a Swiss company Boosty producing the motor and rest of the components. The idea was building an electrical DH bike which can easly climb up most mountains. This way riders living in countries or areas without lifts can do multiple downhill runs concentrating on the descent and not loosing energy on climbing and pushing up.
system includes
motor 500W 48V
double chain ring in the front mounted on a freewheel crank mechanism used in trials bikes
battery is lithium polymer produced specially by Hell Power in Austria and is placed in a standard small camalback backpack
a throttle on the handlebar controls the speed and shows the battery state
solenoid box with switch mounted on the seattube
Whole system weights 2.2 kg
efects:
The bike can climb up to 45 degree slopes. Battery lasts for 4 hours of continious usage and climbs up to 1600m vertically. Pedaling while using the motor saves the battery. While using the motor You can use all the cassette gears. We are working on a new mounting bracket which will be removable from the frame when we dont want to use the motor on it.
sorry for my English
articles:
http://dirtmountainbike.com/news/future-electric.html
http://www.dh-zone.com/News/1134.html
cheers!
Pawel Matuszynski
Zumbi Cycles
www.zumbicycles.com
Check out this idea we started working on together with Jurg Lanz owner of a Swiss company Boosty producing the motor and rest of the components. The idea was building an electrical DH bike which can easly climb up most mountains. This way riders living in countries or areas without lifts can do multiple downhill runs concentrating on the descent and not loosing energy on climbing and pushing up.
system includes
motor 500W 48V
double chain ring in the front mounted on a freewheel crank mechanism used in trials bikes
battery is lithium polymer produced specially by Hell Power in Austria and is placed in a standard small camalback backpack
a throttle on the handlebar controls the speed and shows the battery state
solenoid box with switch mounted on the seattube
Whole system weights 2.2 kg
efects:
The bike can climb up to 45 degree slopes. Battery lasts for 4 hours of continious usage and climbs up to 1600m vertically. Pedaling while using the motor saves the battery. While using the motor You can use all the cassette gears. We are working on a new mounting bracket which will be removable from the frame when we dont want to use the motor on it.
sorry for my English
articles:
http://dirtmountainbike.com/news/future-electric.html
http://www.dh-zone.com/News/1134.html
cheers!
Pawel Matuszynski
Zumbi Cycles
www.zumbicycles.com
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