steam25
100 W
hello crew,
many of you know i am living in china. so i have access to all the wonderland factorys with cool electric vehicle stuff.
after many builds of "normal" bike conversations to high power electric bike i decided to cooperate with some chinese factory here and build my first real electric bicycle.
WHAT DOES THAT MEAN?
custom frame with my own design, components and ideas.
WHY BUILD IT?
because we love it and i think its time for a high power fun machine with a reasonable price tag.
photos will follow soon but here is a first scratch about the frame...
first you all want know some specs i think.
- 72V 20s lipo battery with 35Ah and 10c continuous discharge rate @ 350A (charge rate max 35A @ 1c)
- Cromotor V3 with reinforced internals, 150mm dropout, 16mm axle, 70-80km/h
- Kelly KEB72101, 450A,10KW, E-bike Brushless Controller/ Regen
- custom full suspension frame with integrated torque arms and enough space for battery, controller, small charger and stuff
- 26" motorbike rims, 2 speed for pedaling, hardcore 12V front lightbar and integrated LED light for rest of the bike
of course its a long way to go and first results will follow in a month but i made a good start and figure out alot problems. i open this topic to hear some feedback or ideas from you guys.
something about the idea from myself: i will build 3 different versions. this is the biggest. there is another one just for long range which will look like a normal bike (3 battery will be inside the frame) and last but not least a light small efficient mid motor bicycle, based on the second bike but just 2 instead of 3 battery and 48V.
for this big monster i will use very high power lipo cells from japan which i already test a long time in my other scooter project: http://endless-sphere.com/forums/viewtopic.php?f=12&t=58220&start=50#p875612
after over 12.000km and nearly 500 cycles of charge/discharge i can say these batteries are awesome! even without BMS i can charge or discharge them as hard as i want. since month they are absolute perfectly balanced and i am really impressed. price will be around 400$.
with the frame i try to keep the point of weight low as possible. the bike will be much bigger and longer as a normal bicycle and a hybrid between bike and motorbike. maybe make a version without pedals and just something to put your legs on later?
front fork will be downhill from DNM with 203mm. name is USD-8 (anybody experience with this brand?)
after test it for some month i plan to sell it.
of course many people not interested in a "ready to go" vehicle so i also plan to sell the frame only so you can build your own bikes.
same with the battery.
ideas? opinions? questions? here you go!
many of you know i am living in china. so i have access to all the wonderland factorys with cool electric vehicle stuff.
after many builds of "normal" bike conversations to high power electric bike i decided to cooperate with some chinese factory here and build my first real electric bicycle.
WHAT DOES THAT MEAN?
custom frame with my own design, components and ideas.
WHY BUILD IT?
because we love it and i think its time for a high power fun machine with a reasonable price tag.
photos will follow soon but here is a first scratch about the frame...
first you all want know some specs i think.
- 72V 20s lipo battery with 35Ah and 10c continuous discharge rate @ 350A (charge rate max 35A @ 1c)
- Cromotor V3 with reinforced internals, 150mm dropout, 16mm axle, 70-80km/h
- Kelly KEB72101, 450A,10KW, E-bike Brushless Controller/ Regen
- custom full suspension frame with integrated torque arms and enough space for battery, controller, small charger and stuff
- 26" motorbike rims, 2 speed for pedaling, hardcore 12V front lightbar and integrated LED light for rest of the bike
of course its a long way to go and first results will follow in a month but i made a good start and figure out alot problems. i open this topic to hear some feedback or ideas from you guys.
something about the idea from myself: i will build 3 different versions. this is the biggest. there is another one just for long range which will look like a normal bike (3 battery will be inside the frame) and last but not least a light small efficient mid motor bicycle, based on the second bike but just 2 instead of 3 battery and 48V.
for this big monster i will use very high power lipo cells from japan which i already test a long time in my other scooter project: http://endless-sphere.com/forums/viewtopic.php?f=12&t=58220&start=50#p875612
after over 12.000km and nearly 500 cycles of charge/discharge i can say these batteries are awesome! even without BMS i can charge or discharge them as hard as i want. since month they are absolute perfectly balanced and i am really impressed. price will be around 400$.
with the frame i try to keep the point of weight low as possible. the bike will be much bigger and longer as a normal bicycle and a hybrid between bike and motorbike. maybe make a version without pedals and just something to put your legs on later?
front fork will be downhill from DNM with 203mm. name is USD-8 (anybody experience with this brand?)
after test it for some month i plan to sell it.
of course many people not interested in a "ready to go" vehicle so i also plan to sell the frame only so you can build your own bikes.
same with the battery.
ideas? opinions? questions? here you go!
