Cargo Bike Conversion Advice

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woosh cant you sell those with batts for like 2k a diy kit like that will kick a surons ass.

 

[EXE Bikes]

Just heard back from Andy at Woosh also suggesting the Baffang 250w extra torque using the 48v 250 watt motor. If mid drive is the way to go will this unit be suitable for pulling weight up hills? Not sure how the torque compares to a higher watt motor or Tongsheng equivalent.

 

[Woosh]

both have the same torque rating. Both are good for cargo bikes up to about 250kgs total weight.
The Bafang SWX02 has thread for freewheels, the DWG22C has freehub body for cassettes.
The Bafang is drilled for 13 gauge spokes and slightly smaller, so a bit easier to lace.
We have both in stock.

 

[EXE Bikes]

Another thought I had is the voltage rating on the 250 watt BBS01 kits compared to a detuned BBS02 or B

What would provide more torque?

An out of the box 36v 250w

A detuned 36v 500w to 250w

A detuned 48v 500w to 250w

Would the detuned versions mean lower running temps and therefore be more reliable?

I am now leaning at the 250w options as looking into insurance they ask the question and want to be buy the book just in case.

 

[Woosh]

A 500W BBS02 has 48V 20A controller but not road legal.
you can buy a BBS01ET, 48V 15A 250W kit from me but it's not as suitable for cargo bikes as a rear hub DWG22C or SWX02. The controller on the DWG22C/SWX02 is 48V 17A against the BBS01ET's 48V 15A. The BBS01ET is more suitable for mountain biking. The DWG22C more suitable for cargo bikes.
The rear hub DWG22C gives you a more relaxed ride, less wear and tear and no issue with water ingress or heat dissipation.

 

[EXE Bikes]

@Woosh out of interest are the BBS01 ET motors you sell detuned versions of the 500w BBS02?

 

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it is just a different spec controller with more amps but you can use 3rd party controllers like a phase runner if you want more power

 

[Woosh]

@Woosh out of interest are the BBS01 ET motors you sell detuned versions of the 500w BBS02?

I would not call it detuned. I asked Bafang to do me a 48V 16A 250W BBS01. I call it BBS01ET for extra torque because it's the BBS01 but with a souped up controller. The BBS02 is supplied with 48V 20A controller. I suspect that Bafang simply programmed the controller to suit me. I don't want to modify the motors or reprogram the controller myself because of warranty and labelling. The label on my BBS01ET (it says Bafang MM G340 250 16 on the label) is done by Bafang, not myself.
G340 has the same parts as BBS02.

 

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bafang USB Programming Length 1 M Cable for 8fun / BBS01B BBS02B BBSHD Mid Driv | eBay

Compatible with BBS01B, BBS02B and BBSHD motors. You can use the display cable also to use your Bafang BBS motor without display. Connect the orange and brown wire together and the motor turns on. in the download you can find the original Bafang data.

www.ebay.co.uk

 

[EXE Bikes]

Ok thanks for the patience guys last question I promise.

My local dealer can do a BBS02 36v 500w and reprogramme it to a 250w output for legal purposes. In my mind this is putting less stress on the motor than originally made for increasing reliability. It also gives me the option in the future to re programme back to 500w and fit to say my MTB for off road use.

Thoughts?

 

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my bosch bike has a 20a controller but i cant programme it and have to use a dongle to remove the speed limit but there are plenty of vids online showing you how to set it all up.

 

[EXE Bikes]

Ok thanks for the patience guys last question I promise.

My local dealer can do a BBS02 36v 500w and reprogramme it to a 250w output for legal purposes. In my mind this is putting less stress on the motor than originally made for increasing reliability. It also gives me the option in the future to re programme back to 500w and fit to say my MTB for off road use.

Thoughts?

Just read the regs and as you will know this does not make it legal. Decision time, Woosh 250w ET or just go for the 500w.

 

[Woosh]

Ok thanks for the patience guys last question I promise.

My local dealer can do a BBS02 36v 500w and reprogramme it to a 250w output for legal purposes. In my mind this is putting less stress on the motor than originally made for increasing reliability. It also gives me the option in the future to re programme back to 500w and fit to say my MTB for off road use.

Thoughts?

you can't reprogram it to 250W. The reason being that the label is an administrative requirement to make the bike road legal. It has to be put there by the motor manufacturer.
If someone gets hurt, the insurance companies will go after whoever puts the 250W label to make the bike road legal.

Crossed with your last post. I can see that you already got that point.

 

[EXE Bikes]

Yeah I don't think they would add a sticker or in anyway say that it's legal, that was my mistake thinking it would be.

 

[EXE Bikes]

@Woosh does your extra torque motor have upgraded internals to deal with the extra RPM loadings?? Also as it's a cargo bike I may need longer speed sensors and potentially motor to battery cable to mount in the front rack. Is this something you can sort? Thanks.

 

[Woosh]

No, it's mechanically a bafang MM G340 aka BBS02. Andy here can advise you with cabling. Please email kits wooshbikes.co.uk

 

[EXE Bikes]

Ah ok. I know you said a rear hub DWG would be more beneficial but I may want to swap the motor between bikes (or at least have the option). I seem limited for that reason and your kit seems the best option. Do you know if they have been used on cargo bikes before or am I just going to damage it will overloading?

 

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i have been riding my bike around like a missile for 10 years now plod has never been interested

 

[EXE Bikes]

i have been riding my bike around like a missile for 10 years now plod has never been interested

I would too normally but if am to insure the bike you declare that it's a road legal ebike. Don't want to run the risk of them not paying up for that reason. As it's cargo it's expensive and left locked outside supermarket etc.

 

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the fact that you can change the settings in the controllers means it will never be road legal and no one will insure it either.

bit like a motor bike with race parts on it voids the insurance or you buy a car and stick a massive turbo on it.

no ebike kit you can buy will never be road legal.

Derestriction, ‘off-road’ switches or modes and dongles

The Department of Transport say that electric bikes fitted with off-road switches or modes, that enable a bike’s motor to continue assisting to speeds beyond 15.5mph, do not comply with UK EAPC law. The term ‘off-road’ suggests that these bikes can be ridden on parkland, forests or other places away from main roads, which isn’t accurate. E-bikes with increased motor power (continuous rated power above 250w) or increased speed (with motor assistance not cutting out at 15.5mph) cannot be used legally as bicycles anywhere on land accessible by the public; when riding on private land you would need permission from the landowner.

UK Electric Bike Law – Pedelecs – Electric Bike Community

www.pedelecs.co.uk

E-bike cyclist weeps in court after being cleared of killing pedestrian in London

Death was believed to be first in UK caused by collision with electrical bicycle

www.independent.co.uk

oh well