Look at this absolute beast...12kW ebike!!!!!

[PH001]

http://www.ebay.co.uk/itm/272260846722?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT

 

[flecc]

They make the usual mistake of saying it's street legal when switched to the 250 watt mode. It's not of course when such mode switching is under the rider's control. Termed an "off-road" switch by the DfT, they are emphatic that these are illegal.
.

 

[dinger19]

It's not that Good looking is it..

 

[soundwave]

has dual front disc rotors lol must need it to stop 45kg

 

[derocco]

This can never have 12kw

I own a stealth bomber 5.2kw and it goes 80km/h
So where is the the benefit of +7KW? (it even is lighter then Bomber....)

Strange..

 

[D8ve]

It's 12kw and lasts an hour on a 1.5kwh battery. That's great engineering that is.

 

[grldtnr]

It's 12kw and lasts an hour on a 1.5kwh battery. That's great engineering that is.

Seems that most don't like it,?

Don't see the point myself, even if it was legal.

 

[brightonebikes]

I had a little go on one of these yesterday.
Jumping off my BBS01 36V 250W equipped bike really showed what a different beast it is.
84V 5000W hub motor delivered plentiful torque, grabbing a handful of throttle resulted in an awesome power wheelie, albeit not a particularly controllable one.
Top end Rockshox suspension, saint hydros, touch screen display, finger print recognition, they don't scrimp on any finishing gear.
It was weighty at 48.5kg, but considered as an electric motor crosser, mighty fine bit of kit.
Completely different gravy to a road legal EAPC, things like these should able to be EASILY road registered, get number plate, insurance and replace old motorbikes up to 500cc.
Impressed, but dubious about ownership and amount of use it would get right now. Maybe in 5 years?
Pushing things forward for sure

Sent from my E5823 using Tapatalk

 

[derf]

I had a little go on one of these yesterday.
Jumping off my BBS01 36V 250W equipped bike really showed what a different beast it is.
84V 5000W hub motor delivered plentiful torque, grabbing a handful of throttle resulted in an awesome power wheelie, albeit not a particularly controllable one.
Top end Rockshox suspension, saint hydros, touch screen display, finger print recognition, they don't scrimp on any finishing gear.
It was weighty at 48.5kg, but considered as an electric motor crosser, mighty fine bit of kit.
Completely different gravy to a road legal EAPC, things like these should able to be EASILY road registered, get number plate, insurance and replace old motorbikes up to 500cc.
Impressed, but dubious about ownership and amount of use it would get right now. Maybe in 5 years?
Pushing things forward for sure

Sent from my E5823 using Tapatalk

I wonder what the 5kw 84V motor and controller combo is? Am contemplating converting a micro car and that may just be enough

 

[Deleted member 4366]

I wonder what the 5kw 84V motor and controller combo is? Am contemplating converting a micro car and that may just be enough

have a look on Endless-sphere, there's loads of people using motors like that there, and loads of info about that bike.

 

[danielrlee]

This can never have 12kw

I own a stealth bomber 5.2kw and it goes 80km/h
So where is the the benefit of +7KW? (it even is lighter then Bomber....)

Strange..

Of course it can. Power comes from a combination of volts and amps.

12kW = 82V * 145A

This isn't likely to go much faster than a Bomber, but it will accelerate lots quicker.

 

[danielrlee]

I wonder what the 5kw 84V motor and controller combo is? Am contemplating converting a micro car and that may just be enough

I think the motor is a QS 260. Not sure about the controller, but since choices are limited at these power levels it's likely to be either a Sabvoton, SevCon or Kelly controller.

 

[EddiePJ]

Not my sort of thing at all, but it certainly puts other home builds to shame by not having ugly battery bags and a mess of wires and cabling. At least it is all contained and hidden.

I'm always puzzled why battery bags and a dogs dinner of wiring seems to be the accepted norm of pedelec builds. Attention to detail seems to be very lacking on the part of self build bikes.

 

[danielrlee]

Not my sort of thing at all, but it certainly puts other home builds to shame by not having ugly battery bags and a mess of wires and cabling. At least it is all contained and hidden.

I'm always puzzled why battery bags and a dogs dinner of wiring seems to be the accepted norm of pedelec builds.

Battery bags are popular for a number of reasons.

1) They're cheap.
2) They're easily adaptable to a wide range of frame shapes and sizes.
3) They provide a certain amount of protection to their contents due to their padded construction.
4) They're a lot easier to create a rattle-free build than when using a hard enclosure.

 

[derf]

I think the motor is a QS 260. Not sure about the controller, but since choices are limited at these power levels it's likely to be either a Sabvoton, SevCon or Kelly controller.

have a look on Endless-sphere, there's loads of people using motors like that there, and loads of info about that bike.

many thanks, very helpful

 

[derf]

Of course it can. Power comes from a combination of volts and amps.

12kW = 82V * 145A

This isn't likely to go much faster than a Bomber, but it will accelerate lots quicker.

so is it aerodynamics that limit the top speed? read somewhere that one needs 8kw to propel an average car at 60mph on a level road..

 

[brightonebikes]

Not my sort of thing at all, but it certainly puts other home builds to shame by not having ugly battery bags and a mess of wires and cabling. At least it is all contained and hidden.

I'm always puzzled why battery bags and a dogs dinner of wiring seems to be the accepted norm of pedelec builds.

Being a purpose built machine, designed and built from the ground up, one would expect concealed wiring. My thoughts are how accessible key components are? Has the design considered ease of maintenance?
Exposed wiring and battery bags are understandably par for the course with home builds, especially those on a budget where spending commonly goes on more power opposed to looking pretty.

Sent from my E5823 using Tapatalk

 

[derf]

Of course it can. Power comes from a combination of volts and amps.

12kW = 82V * 145A

This isn't likely to go much faster than a Bomber, but it will accelerate lots quicker.

that would empty 4 hobbyking 6S 20A/h Lipos in 10 mins at full throttle!

 

[danielrlee]

so is it aerodynamics that limit the top speed? read somewhere that one needs 8kw to propel an average car at 60mph on a level road..

There's a number of factors that limit top speed that include:

Voltage
Motor winding
Gearing/wheel size

As long as there is enough power on tap to overcome aero resistance for a given speed, power won't be the limiting factor.

8kW for 60mph sounds about right though.

 

[danielrlee]

that would empty 4 hobbyking 6S 20A/h Lipos in 10 mins at full throttle!

Only if travelling uphill. On flat ground, power output lessens as you approach top speed.

Anyway, the motor would likely overheat and fail before the battery gives up if drawing a constant 12kW. In reality though this wouldn't happen since the power would be automatically dialled-down once the motor temperature reaches critical levels.