Hi all.
This is my next project.
Video:
http://www.youtube.com/watch?v=YwNy9t5a51w
Sorry , i speak in Russiаn in video.
About this bike:
Frame - Specialized Demo7 2010
Fork - Marzocchi 380 C2R2 2014
Motor - cyclone 1650w with hardened gears , with active heatsink (two small fans with temperature sensor for adjusting airflow)
Controller Kelly KBS-X 72181 with HS option.
Battery - Li-po Zippy Compact 5000mah per cell , 14s4p (approx 1kwh)
Maximum speed 66kph (limited by transmission and motor turns) ;
Rear hub Shimano Alphine8 .
Continued mechanical power: 3 kw
Peak mechanical power: 4,5 kw .
Effecience 80% on 3kwt mehanical power.
Torque on first gear approx 290nm.
Mechanical power and effective of motor was measured and tested on the home made stand.
Stand for adjusting motor: http://electrotransport.ru/ussr/index.php?topic=24921.0
(Text in Russian , but you can use google translator).
After a short time, the controler and the motor were installed on a frame.
Fastening of the motor is printed on the 3D printer. Some parts of transmission were made of the titan with laser cutter.
Test on road:
http://www.youtube.com/watch?v=Lgv7n097haA
Offroad test:
http://www.youtube.com/watch?v=tbCY1qZAbTM
Bike was made for offroad driving only, but shows not bad results on asphalt.
If to add one gear, it is possible to increase maximum speed a bike up to 75 kph.
The voice on video was distorted for a funny.
My previous project with active heatsink: http://endless-sphere.com/forums/viewtopic.php?f=28&t=56666&p=845919&hilit=chupa#p844915
This is my next project.
Video:
http://www.youtube.com/watch?v=YwNy9t5a51w
Sorry , i speak in Russiаn in video.
About this bike:
Frame - Specialized Demo7 2010
Fork - Marzocchi 380 C2R2 2014
Motor - cyclone 1650w with hardened gears , with active heatsink (two small fans with temperature sensor for adjusting airflow)
Controller Kelly KBS-X 72181 with HS option.
Battery - Li-po Zippy Compact 5000mah per cell , 14s4p (approx 1kwh)
Maximum speed 66kph (limited by transmission and motor turns) ;
Rear hub Shimano Alphine8 .
Continued mechanical power: 3 kw
Peak mechanical power: 4,5 kw .
Effecience 80% on 3kwt mehanical power.
Torque on first gear approx 290nm.
Mechanical power and effective of motor was measured and tested on the home made stand.
Stand for adjusting motor: http://electrotransport.ru/ussr/index.php?topic=24921.0
(Text in Russian , but you can use google translator).
After a short time, the controler and the motor were installed on a frame.
Fastening of the motor is printed on the 3D printer. Some parts of transmission were made of the titan with laser cutter.
Test on road:
http://www.youtube.com/watch?v=Lgv7n097haA
Offroad test:
http://www.youtube.com/watch?v=tbCY1qZAbTM
Bike was made for offroad driving only, but shows not bad results on asphalt.
If to add one gear, it is possible to increase maximum speed a bike up to 75 kph.
The voice on video was distorted for a funny.
My previous project with active heatsink: http://endless-sphere.com/forums/viewtopic.php?f=28&t=56666&p=845919&hilit=chupa#p844915