Vario downhill bike mid-drive conversion

[zekill]

Hi all,
I starting convert this great downhill bike.
I have just ordered the classic cyclone 3kw kit.

i'm planning to fit battery on the sides of the top tube (rectangular shape)
is it correct to build two packs for example 7s4p and connect them in serial for 14s8p ?
Or perhaps a rectangular 14s7p can fit below the downtube but i need to do some measures
all ideas are welcome

 

[pwd]

is it correct to build two packs for example 7s4p and connect them in serial for 14s8p ?

Looks like a fun build. Two 7s4p packs connected in series would be 14s4p. A 14s8p pack split into two equal halves would be 7s8p.

 

[tahitiboob]

I also in 2013 made my first bike with a vario frame impossible for me to mount the battery on the frame it was ugly coup in backpack

 

[zekill]

is it correct to build two packs for example 7s4p and connect them in serial for 14s8p ?

Looks like a fun build. Two 7s4p packs connected in series would be 14s4p. A 14s8p pack split into two equal halves would be 7s8p.

yes, i made a mistake when i write it.
so, is it a bad thing to build a pack splitted like 7s(X)p x2 in serial with one BMS ?

 

[zekill]

I also in 2013 made my first bike with a vario frame impossible for me to mount the battery on the frame it was ugly coup in backpack

I think your frame is better than mine for put a battery before tube, especially with hub motor.
your bike is beautiful

 

[Grantmac]

I also in 2013 made my first bike with a vario frame impossible for me to mount the battery on the frame it was ugly coup in backpack

That frame is just begging for a mid drive and battery under the tube!

 

[zekill]

this is the left motor mount that i'm start to build.
it's a 3mm sheet metal.

 

[zekill]

custom motor clamping is done.
I weld a plug with M6 tap below the down tube so it's invisible.
Now waiting for battery pack, chain and chain tensioner.

 

[zekill]

 

[zekill]

i have try the bike today.
need a little work to finish it.
battery is 16s7p Sanyo GA, splitted in two parts.

 

[dustyearlobe]

Thats looking meaty cant wait to hear how she go,s :wink:

 

[problemaddict]

Updates?