Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
Post Reply
nukezero
10 kW
10 kW
Posts: 556
Joined: Jul 02, 2013 5:00 pm
Location: Los Angeles, CA

Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by nukezero » Sep 12, 2015 7:13 pm

Do you guys think it is a good idea to throw a Bafang bbs02 750w 480v on a citizen Tokyo 16'' folding bike?

Speed and compactness is the main priority :)

Goal is to reach 20-25mph minimum.

User avatar
Nobuo
10 kW
10 kW
Posts: 881
Joined: Nov 21, 2014 3:38 am
Location: Madrid

Re: Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by Nobuo » Sep 13, 2015 6:08 pm

That depends if you want it to still being a folder bike :lol:
For frame strength there is not any problem.
I convert a very similar foldable bike into an 1000W EV (no chain) with a 48V 43Ah battery (10kg of battery).
it is just not reliable anymore to be easily transported if you doesn't go riding it :o

The frame look good for it, check if a bbs2 fits right

Image
* Lithium + Air = Fire * <-----> ** Lithium + Chemical-Additives + Air = ZERO Fire **
<Battery and EV works>
https://facebook.com/evmadrid1
<Battery building resources>
https://endless-sphere.com/forums/vi ... 14&t=68005

nukezero
10 kW
10 kW
Posts: 556
Joined: Jul 02, 2013 5:00 pm
Location: Los Angeles, CA

Re: Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by nukezero » Sep 13, 2015 6:47 pm

Nobuo wrote:That depends if you want it to still being a folder bike :lol:
For frame strength there is not any problem.
I convert a very similar foldable bike into an 1000W EV (no chain) with a 48V 43Ah battery (10kg of battery).
it is just not reliable anymore to be easily transported if you doesn't go riding it :o

The frame look good for it, check if a bbs2 fits right
It has a sturdy steel frame and 6spd freewheel. if I pair it with a 52T BBS-02 750w, and 14T in the rear, I wonder if I could get at least 22-24mph. The biggest complaint on this tokyo is that people were saying its geared too low.

try_all
100 W
100 W
Posts: 125
Joined: Sep 13, 2015 6:18 am

Re: Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by try_all » Sep 14, 2015 9:38 am

Nobuo wrote:That depends if you want it to still being a folder bike :lol:
For frame strength there is not any problem.
I convert a very similar foldable bike into an 1000W EV (no chain) with a 48V 43Ah battery (10kg of battery).
it is just not reliable anymore to be easily transported if you doesn't go riding it :o

The frame look good for it, check if a bbs2 fits right

Image
wow 43Ah :O what kind of range do you get with that massive battery

User avatar
jkbrigman
10 kW
10 kW
Posts: 816
Joined: Oct 28, 2011 12:34 am
Location: North Carolina, Southeast US

Re: Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by jkbrigman » Sep 14, 2015 9:53 am

Why not use the Seoul?
http://www.citizenbike.com/catalog.asp? ... duct_id=48
The 20" wheels will give you an edge over the 16" wheels to reach 20mph.
Plus, it's 4 lbs lighter, same frame.
Beware: those bikes have six speed 14-28T freewheels.
You will want to swap out that freewheel for something that's 11t on the smallest gear.
http://www.ebikes.ca/fw7spd1132.html
I could not find a six speed 11-32 or 11-28.
eRecumbent. 9C 2810, 6-FET,CA,18S3P LiPo, Kenda Kwest. 33mph max 12.8Wh/mi (22mph avg) Phat Bike Commuter HS3540, 6-FET, 18S3P LiPo, Schwalbe Marathon 47mph max 25 Wh/mi (28mph avg) Basic LiPo Charging Thread , Add Throttle to Multispeed Bike
dogman: "I bet if you just don't ride like a jerk, you can do whatever you want up to the speed where everybody looks at you like this. :shock: "
tomjasz: "Romans go full dork. They could give a hoot what 'Merkins do."

User avatar
Nobuo
10 kW
10 kW
Posts: 881
Joined: Nov 21, 2014 3:38 am
Location: Madrid

Re: Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by Nobuo » Sep 14, 2015 11:35 am

try_all wrote:
Nobuo wrote:That depends if you want it to still being a folder bike :lol:
For frame strength there is not any problem.
I convert a very similar foldable bike into an 1000W EV (no chain) with a 48V 43Ah battery (10kg of battery).
it is just not reliable anymore to be easily transported if you doesn't go riding it :o

The frame look good for it, check if a bbs2 fits right

Image
wow 43Ah :O what kind of range do you get with that massive battery
300km (186 miles) at 25mph. With a similar rigid frame, the battery contruction is complete made in order to minimize the energy losses. Also the motor into the 16" wheels

Y need 7Wh per kilometer
* Lithium + Air = Fire * <-----> ** Lithium + Chemical-Additives + Air = ZERO Fire **
<Battery and EV works>
https://facebook.com/evmadrid1
<Battery building resources>
https://endless-sphere.com/forums/vi ... 14&t=68005

try_all
100 W
100 W
Posts: 125
Joined: Sep 13, 2015 6:18 am

Re: Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by try_all » Sep 14, 2015 12:49 pm

Nobuo wrote:
try_all wrote:
Nobuo wrote:That depends if you want it to still being a folder bike :lol:
For frame strength there is not any problem.
I convert a very similar foldable bike into an 1000W EV (no chain) with a 48V 43Ah battery (10kg of battery).
it is just not reliable anymore to be easily transported if you doesn't go riding it :o

The frame look good for it, check if a bbs2 fits right

Image
wow 43Ah :O what kind of range do you get with that massive battery
300km (186 miles) at 25mph. With a similar rigid frame, the battery contruction is complete made in order to minimize the energy losses. Also the motor into the 16" wheels

Y need 7Wh per kilometer
thats F..kin awesome mate props to you.i was looking at this battery on ebay:

http://www.ebay.co.uk/itm/321862210818? ... e075e&cp=1

Do you think i can get atleast 200km with just throttle at 30mph? Im using a 1000w 48v ebay kit.

User avatar
Nobuo
10 kW
10 kW
Posts: 881
Joined: Nov 21, 2014 3:38 am
Location: Madrid

Re: Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by Nobuo » Sep 14, 2015 12:59 pm

If the battery is made with high quality li-ion cells and the conductors has the enough quantity in every place, so it deliver close the power it has, so then you should ger that range.
I use also relatively high pressure on both tires, and I have no chain. All the train losses are from bearings basically
* Lithium + Air = Fire * <-----> ** Lithium + Chemical-Additives + Air = ZERO Fire **
<Battery and EV works>
https://facebook.com/evmadrid1
<Battery building resources>
https://endless-sphere.com/forums/vi ... 14&t=68005

Ekibevoli
1 µW
1 µW
Posts: 2
Joined: May 19, 2017 11:06 pm

Re: Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by Ekibevoli » May 19, 2017 11:09 pm

Does anyone know if the bbs02 fits the bottom bracket of the citizen folders? I have a system, but am hesitant to buy the folder in fear it may not fit.

User avatar
tomjasz
1.21 GW
1.21 GW
Posts: 3703
Joined: Mar 29, 2014 1:45 pm
Location: Out riding, MN USA
Contact:

Re: Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by tomjasz » May 19, 2017 11:25 pm

Ekibevoli wrote:Does anyone know if the bbs02 fits the bottom bracket of the citizen folders? I have a system, but am hesitant to buy the folder in fear it may not fit.
What does the BB widthe measure at? Link?
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

Ekibevoli
1 µW
1 µW
Posts: 2
Joined: May 19, 2017 11:06 pm

Re: Bafang bbs02-750 48v on a 16'' folder bike, good idea?

Post by Ekibevoli » May 20, 2017 6:26 am

The Bafang BBS02 fits into 68mm wide and 32mm diameter.

Post Reply