leo99
100 W
Hi everybody,
I am starting a lightish and stealthy build for my commute to university
my project is to have a bike hopefully at 15kg or less to keep it a fully pedable bike. I am going to try to make a clean build and try to hid the electronic.
this is my bike i bought it for 300 swiss francs. it isn't the lightest being 12.3 kg but at that price it dosen't bother me to much. i took the front derailleur off it and i am at 11.5 kg now
I am going to go 1X9 for the transmission since it is lighter and i will have the motor plus i always wanted to ditch the front derailleur.
i am going to use a oval narrow wide chainring of 36 tooth with a 12-36 as cassette to hid the motor. i should top out at 40 km/h
here is the chainring:
http://www.chainreactioncycles.com/...rrow-wide-oval-single-chainring/rp-prod131089
I am planning on going with :
the Q100c 201 from BMS https://bmsbattery.com/ebike-kit/651-q100c-cst-36v350w-32-hole-rear-driving-hub-motor-ebike-kit.html
a good controller from em3ev 6fet 3077 http://em3ev.com/store/index.php?route=product/product&path=41_38&product_id=77
i want his since it takes 14s battery and i can set max amps and phase amps.
I am asking paul to make me a custom 14s2p (300wh) or 14s3p (450wh) battery from 30Q cells (3000mah). my commute round trip is 25 km with ups and downs so i am not sure about the size of the pack needed
I would like to run the motor at 14s at 13 amps / 25 phase amps. I want to set phase amps low since this motor has such a small thermal mass. The motor should top at around 37km/h by my calculations
I am still undecided where to put the controller and if i want to put the battery under the seat or in my backpack since it is a light battery pack (kg).I am more going for the backpack since i always have a backpack with me.
Please any comment or idea is appreciated
leo
Update: 20 april 2016
I installed a few things and I am waiting for my order from em3ev
View attachment 1
Update: 12 mai 2018
This is pretty much the final version.
I am starting a lightish and stealthy build for my commute to university
my project is to have a bike hopefully at 15kg or less to keep it a fully pedable bike. I am going to try to make a clean build and try to hid the electronic.
this is my bike i bought it for 300 swiss francs. it isn't the lightest being 12.3 kg but at that price it dosen't bother me to much. i took the front derailleur off it and i am at 11.5 kg now
I am going to go 1X9 for the transmission since it is lighter and i will have the motor plus i always wanted to ditch the front derailleur.
i am going to use a oval narrow wide chainring of 36 tooth with a 12-36 as cassette to hid the motor. i should top out at 40 km/h
here is the chainring:
http://www.chainreactioncycles.com/...rrow-wide-oval-single-chainring/rp-prod131089
I am planning on going with :
the Q100c 201 from BMS https://bmsbattery.com/ebike-kit/651-q100c-cst-36v350w-32-hole-rear-driving-hub-motor-ebike-kit.html
a good controller from em3ev 6fet 3077 http://em3ev.com/store/index.php?route=product/product&path=41_38&product_id=77
i want his since it takes 14s battery and i can set max amps and phase amps.
I am asking paul to make me a custom 14s2p (300wh) or 14s3p (450wh) battery from 30Q cells (3000mah). my commute round trip is 25 km with ups and downs so i am not sure about the size of the pack needed
I would like to run the motor at 14s at 13 amps / 25 phase amps. I want to set phase amps low since this motor has such a small thermal mass. The motor should top at around 37km/h by my calculations
I am still undecided where to put the controller and if i want to put the battery under the seat or in my backpack since it is a light battery pack (kg).I am more going for the backpack since i always have a backpack with me.
Please any comment or idea is appreciated
leo
Update: 20 april 2016
I installed a few things and I am waiting for my order from em3ev
View attachment 1
Update: 12 mai 2018
This is pretty much the final version.