Planning to buy 48v 6000w

[Dyaz]

Hello, i planning to buy motor kit form cyclone-tw.com

Have you ever bought anything from this site?

my Choice:
48V Super 6000W "3 chainwheel Kit" + Cyclone 100A continue 11.5AH 48V Lifepo4 pack in bag (10C)+ 48V 3A charger ) (4hours) Complete kit Top speed 100km/h ,cyclone 48- 72V 100A continue 350A max controlelr ( throttle 48V with LED lingt )

Are you sure this kit will drive the bike 100 km / h? how much time will be able to ride with a full loading battery?

Is it worth it to pay for the kit 1569USD ? You might suggest a better option for the price?

 

[dogman dan]

6000w through a bike chain sounds a bit much.

 

[Tench]

6000w through a bike chain sounds a bit much.

That was the first thing that came to my mind too!

 

[sven_nilsson]

Maybe it is, but you cannot compare to motorcycle chain requirements because an electric motor produces very smooth torque while a combustion engine is like a sledgehammer in comparison and will need much stronger stuff, especially the four-stroke engines.

 

[kentlim26]

how fast you wish to clock a speed ? say how many seconds you wish to reach a certain speed?
my suggest if you are looking speed below 50km/h, I will say that small motor of 500w will be sufficient enough to clock, you can always go a bit faster 55km/h.
bigger batter and cells cost more always, I have both ebikes hub motor or cyclone. smooth ride/ sound less... = hub motor

 

[Dyaz]

Thanks for answers all

how fast you wish to clock a speed ? say how many seconds you wish to reach a certain speed?
my suggest if you are looking speed below 50km/h, I will say that small motor of 500w will be sufficient enough to clock, you can always go a bit faster 55km/h.
bigger batter and cells cost more always, I have both ebikes hub motor or cyclone. smooth ride/ sound less... = hub motor

I want to achieve about 100-90 km/h, i was searching hub motor, but all motor not so high top speed...

Like this human https://www.youtube.com/watch?v=IsodEjnNFV8 have a awesome torque, but speed only 60km/h. I want a something like that, less torque more top speed. Maybe you know from where he have bought this motor?

 

[skeetab5780]

The x5404 is a slower wind motor. I went from x5404 to x5304 and gained about 6mph. You could get a x5303 and it would be around 8mph more than that. This will bring you to around 50mph full charge 20s(84v).

Or just get a Cromotor.

You can chain drive if you really want with a big block GNG motor and a separate chain drive from your human assist. I haven't made up my mind yet, but I still sort of like the hub motors more because they are silent.

 

[Dyaz]

The x5404 is a slower wind motor. I went from x5404 to x5304 and gained about 6mph. You could get a x5303 and it would be around 8mph more than that. This will bring you to around 50mph full charge 20s(84v).

Or just get a Cromotor.

You can chain drive if you really want with a big block GNG motor and a separate chain drive from your human assist. I haven't made up my mind yet, but I still sort of like the hub motors more because they are silent.

from where i can buy that motor? x5304

 

[skeetab5780]

If you can't find one second hand either here or Ebay/CL, then it is cheaper to buy a Cromotor. Even used older X5 motors go for around $400USD

Once and a while a vendor/supplier post New in box X5 stuff but the last ones I saw were $999 dollars not laced in a rim(motor only) they are probably still available.

Both my x5404 and x5304 need new bearings. From what I hear they used junk hall sensors, axles and bearings but the motors and housings are tanks.

slowest out of the 3 x5404
middle out of the 3 x5304
fastest out of the 3 x5303

x5304 could be comparable to x5403

 

[Dyaz]

hmm. So how with cromotors? I think they have also huge torque and top speed? But have one minus, motor emits a high-pitched sound?

 

[skeetab5780]

I've never had the pleasure of owning one. Someone else will have to chime in on that.

 

[Dyaz]

How about this? 529 USD

without battery. 48-72V super 3000W 13T freewheel 8kw max +105 km/h @ 72V ( 48T,44T,24T) super crazy big motors 5.5 kg without gear box with 3KW 48-72V ( max input voltage 88V) 120A continue 350A max cyclone controllers throttle 48-72V no LED light with B.B. style bracket in stock ( speed test base on FFrontal area 0.3m^2)

Is this can be same motor? https://www.youtube.com/watch?v=1DS_6VjKQGY that guy going crazy, thats what i realy want.

 

[bmurray7]

Are you sure this kit will drive the bike 100 km / h? how much time will be able to ride with a full loading battery?

Bikes aren't built to go 100km/h. If you do manage to get a bike up to 100km/h, the bikes components will quickly suffer severe mechanical failures resulting a severe crash. You would be lucky if you survived.

An 48v 11 ah battery has about 550w/h of energy. It would power a 6000w motor for about 5 minutes. At a 10c discharge rate, the battery will be toast after a few rides.

See:
http://endless-sphere.com/w/index.php/I%27m_a_Noob_and_I_Wanna_Go_50MPH

 

[Eskimo]

Bikes aren't built to go 100km/h. If you do manage to get a bike up to 100km/h, the forces bikes components will quickly suffer severe mechanical failures resulting a severe crash. You would be lucky if you survived.

An 48v 11 ah battery has about 550w/h of energy. It would power a 6000w motor for about 5 minutes. At a 10c discharge rate, the battery will be toast after a few rides.

Exactly.
You get four minute run, if your bike does not come apart and kill you. After that your battery is a toast.
IMO 50 km/h is high maintained speed for a standard bicycle components.

 

[kentlim26]

my understand my 2nd ebike, when reached above 63km/h ,I already can sense - my front wheel is not gripping well the ground well. I can feel like - I am going to fall anytime. so I have some how accept my current speed 40km ~ 50km/h , I know is slow. I had even go slower like 30km/h on cyclone for 7 cells only, 15amps. is fun to try out all he speed range at WOT.

 

[skeetab5780]

my understand my 2nd ebike, when reached above 63km/h ,I already can sense - my front wheel is not gripping well the ground well. I can feel like - I am going to fall anytime. so I have some how accept my current speed 40km ~ 50km/h , I know is slow. I had even go slower like 30km/h on cyclone for 7 cells only, 15amps. is fun to try out all he speed range at WOT.

its good that you feel that it is unsafe because it probably is. You may have either bad frame geometry weather it be different sized wheels or aftermarket front fork. Or maybe too much weight in the rear of the bike and its not properly distributed to the center/lower portions of the vehicle. It makes a huge difference. Also once you get to speeds above 34mph you should really consider going to DOT rated moto rims/tires.

 

[kentlim26]

yes, you are exactly right. the weight is at the rear . it could be this fork is too high. I have changed my rim from a thin spokes to a 6 spokes which is slightly heavier. it does help a lot.