Who's enjoying 10kw and up?

General Discussion about electric bicycles.
Jestronix   10 kW

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Who's enjoying 10kw and up?

Post by Jestronix » Feb 27 2016 7:00am

I'd like to hear how people are finding their 10kw + rides. What batteries are u running, what controller, motor and what's it used for. Oh and are u bored with 10kw and want more lol


I'll kick off and get the ball running.

So 10kw I would have to say for me is the max a normal dual shock mountain bike is good for. Why, well keeping the front down is harder. On full squirt and leaning forward your steering is light and unsettled. I've caught myself almost flipping a few times doing atleast 50-60kmh, not recommend :) So a purpose built frame like a flux etc has a much longer rear swing arm to combat this.

I run 2p 30s 5200 multistar packs, 125v @ 100 amps, so 10c on squirt, and average 3-4c. Multistar are cheap, I have had 4 packs fail out of 14. Next packs will be graphene 1p 30s 10ah or some new tech.

Controller I run a 14kw Chinese unit, 145v max 100amps. It's big and chunky but barely gets warm even hard riding with 10kw. Bluetooth rocks - contact Sam D he can get these in.

I run a mxus v2 5 wind. solid unit, I run in a 26 inch wheel with big tyres. Mainly as 26 and fat tyres work well over the bumpy stuff.

I mostly use mine off-road , have done a couple rides to work, but thinking of building a purpose built commuter for that.

Do I want more power? Well at the moment no! 10kw and 70-80 top speed with brutal acceleration. On a bike frame beyond 10kw gets deadly, however on a stealth frame I think 15kw may be possible. Brakes are a huge worry, pulling up on a trail doing 60-70 is hard on forks and frame, my big front disc had trouble pulling up like a dirt bike does.

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ridethelightning   1 MW

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Re: Who's enjoying 10kw and up?

Post by ridethelightning » Feb 27 2016 9:17am

good smooth varyable regen to wipe of crazy speed comfortably, and serious dh brakes, i use shimano saint/zee.
the braking is only limited by the tyre contact surface area, tread and rubber compound, as the wheels will lock up and skid, rather than the brakes not being able to provide enough stopping power.

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liveforphysics   100 GW

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Re: Who's enjoying 10kw and up?

Post by liveforphysics » Feb 27 2016 1:17pm

10kW is amazing until you try 20kW.

20kW is amazing until you try 40kW.

40kW is amazing until you try 80kW etc.
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ridethelightning   1 MW

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Re: Who's enjoying 10kw and up?

Post by ridethelightning » Feb 27 2016 7:26pm

....100 kw is even better.....until you stack it :mrgreen:

Jestronix   10 kW

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Re: Who's enjoying 10kw and up?

Post by Jestronix » Feb 27 2016 9:02pm

ridethelightning wrote:good smooth varyable regen to wipe of crazy speed comfortably, and serious dh brakes, i use shimano saint/zee.
the braking is only limited by the tyre contact surface area, tread and rubber compound, as the wheels will lock up and skid, rather than the brakes not being able to provide enough stopping power.

Lol I'm running a Dior on a big disc, as u can imagine soon as it's hot it's no so good, it was a cheap way out at the time. I have maxxis super sticky downhills which do a good job. Rear brake is rubbish , will have to get regen happening. Also note to self don't put ATF hole on the same side as brakes, I've had oil on the disc from when it s been in the ute on its side.

Jestronix   10 kW

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Re: Who's enjoying 10kw and up?

Post by Jestronix » Feb 27 2016 9:05pm

20kw um in moto frames now yeh? Maybe in a stealth frame. U guys are nutzzzz

Trouble I'm getting is my tyre slipping on the rim and ripping valve stems, more tyre pressure or time to go tubeless ?

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ridethelightning   1 MW

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Re: Who's enjoying 10kw and up?

Post by ridethelightning » Feb 27 2016 9:34pm

hence the need for moto rims/tires that are designed to take some torque....

adaptto system has awesome regen facility. its one of the big pros. you only need the discs when coming to full stop or in emergency really.

Jestronix   10 kW

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Re: Who's enjoying 10kw and up?

Post by Jestronix » Mar 04 2016 7:15pm

this was a fizzer, thought there would be more out there that wanted to share their setups and profiles. Either that or theres only a few of us :)

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jansevr   1 kW

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Re: Who's enjoying 10kw and up?

Post by jansevr » Mar 04 2016 8:08pm

Image
I'm running 14kw peaks and couldn't be happier...although just like everyone else running high power in always looking for more. Should have a qs205v3 to replace my mxus in a few weeks so that should help ;). I don't run regen and rarely use my rear brake for street riding - it's 90% front. Pads last 5-6 months.

Jestronix   10 kW

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Re: Who's enjoying 10kw and up?

Post by Jestronix » Mar 05 2016 4:15am

now thats more like it, what is that frame ? looks like its ready for the mud. Looks nice.

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Drunkskunk   100 GW

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Re: Who's enjoying 10kw and up?

Post by Drunkskunk » Mar 07 2016 10:46am

I've got a high powered full suspension Fat bike. I ran 15kw for a time. I've backed down to 10kw. 15kw was fun, but it was overpowering the wheels, tires, and brakes. 10kw still does some, but I can manage it. If I was running smaller DH tires, I could probably run >20kw with this bike, but where's the fun in tiny 2.5" tires? :mrgreen:

Huge power is fun, but I prefer to have a balance between power and control.

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macribs   1.21 GW

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Re: Who's enjoying 10kw and up?

Post by macribs » Mar 07 2016 12:27pm

Drunkskunk, your bike would look awesome with some fat 17" moto rims and supermotard tires, and then you could run any power you like :twisted:
With variable regen you could save some brake wear too.

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snellemin   10 kW

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Re: Who's enjoying 10kw and up?

Post by snellemin » Mar 07 2016 5:30pm

This is my commuter. Has some issues right now with the CA picking up ac signal.

Sinwave controller on 18s lipo. Peaked at 56.9mph on CA, 55 something on gps. Fun bike that mostly sees asphalt only. Gets a lot of attention too. Very stable at high speeds. Peaks over 10kw. I don't need any more than that. If I do, I will just get back in my car.


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ridethelightning   1 MW

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Re: Who's enjoying 10kw and up?

Post by ridethelightning » Mar 08 2016 3:45am

wow! some really nice bikes here.

@ snellmin, how do the lights perform on the raptor? got a link?

iv tried all sorts of ebay lights but its hit and miss.

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snellemin   10 kW

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Re: Who's enjoying 10kw and up?

Post by snellemin » Mar 08 2016 12:46pm

ridethelightning wrote: @ snellmin, how do the lights perform on the raptor? got a link?

iv tried all sorts of ebay lights but its hit and miss.
Here you go

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JumperJackFlash   100 W

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Re: Who's enjoying 10kw and up?

Post by JumperJackFlash » Mar 08 2016 6:01pm

Snellemin,

Nice bike!!!

Could you show us a picture of the mount you have for your Magic Shines?

Thanks.

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MadRhino   100 GW

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Re: Who's enjoying 10kw and up?

Post by MadRhino » Mar 08 2016 6:38pm

For 10 Kw and up, better to use RC lipo if you care about the weight. Weight to power ratio makes the real performance of your bike. Build a 20 Kw bike that weights sub 70 Lbs, and you will beat a 40 Kw bike that is above 100 Lbs. Well, it is not that plain simple, for you need to account the rider's weight, aerodynamics and wheel sizes... Yet, the figure is right most of the time. :wink:
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snellemin   10 kW

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Re: Who's enjoying 10kw and up?

Post by snellemin » Mar 08 2016 6:46pm

JumperJackFlash wrote:Snellemin,

Nice bike!!!

Could you show us a picture of the mount you have for your Magic Shines?

Thanks.
It's just a camera mount for bikes. I flipped it, so the lights sits up higher for cars to see me coming during the day.

Amazon has them for 30 bucks or so.

http://www.amazon.com/dp/B001WB1GE0/ref ... 0LA81MDW4M
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JumperJackFlash   100 W

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Re: Who's enjoying 10kw and up?

Post by JumperJackFlash » Mar 08 2016 6:50pm

Thanks, that's exactly what I was looking for.

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ridethelightning   1 MW

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Re: Who's enjoying 10kw and up?

Post by ridethelightning » Mar 08 2016 9:10pm

indeed! thts a really neat light mount solution.

the spread of the lights looks fairly difuse too, much better for riding, unlike the ones i have that just seer the bejesus out of anyone oncoming,pedestrians etc.
iv had these for more then a year, going strong, but you can see the intense spot in the center-

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ecycler   10 kW

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Re: Who's enjoying 10kw and up?

Post by ecycler » Mar 23 2016 5:58pm

What kind of voltage sag are you guys seeing on your packs at these current levels?

I ran as high as 15kw and decided it was just too much for a bike frame. If I really want to haul ass a MC frame is the way to go. With the motors I have tried the power heats them up so quickly that I can't use regen as well. Anyone see scalloping on their rear tires yet? I had a bit of that going on until I fried my KB72601.
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ridethelightning   1 MW

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Re: Who's enjoying 10kw and up?

Post by ridethelightning » Mar 24 2016 8:16am

ecycler wrote:What kind of voltage sag are you guys seeing on your packs at these current levels?

I ran as high as 15kw and decided it was just too much for a bike frame. If I really want to haul ass a MC frame is the way to go. With the motors I have tried the power heats them up so quickly that I can't use regen as well. Anyone see scalloping on their rear tires yet? I had a bit of that going on until I fried my KB72601.
"scallloping" :?: :!: :shock:
im not actually sure if i want to know what that might be.....caused by.

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macribs   1.21 GW

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Re: Who's enjoying 10kw and up?

Post by macribs » Mar 24 2016 8:51am

DOn't think you will have much of that using mc tires and rims. The total weight of the bike will very light compared to rating for mc tire.


Scalloping rear tire to the right.

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ecycler   10 kW

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Re: Who's enjoying 10kw and up?

Post by ecycler » Mar 24 2016 9:34am

That is just the thing. I was surprised that a motorcycle tire would exhibit this on a light machine. I guess some would call it cupping, but basically the tread knobs of my rear tire started developing a trapezoidal shape under really high power and I was curious if others were seeing that. It is likely that I was running a pressure too high or low for the given weight and power for the shinko241. It hasn't been nearly as pronounced since I dialed the power back down.
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Jestronix   10 kW

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Re: Who's enjoying 10kw and up?

Post by Jestronix » Mar 25 2016 8:28am

Drunkskunk wrote:I've got a high powered full suspension Fat bike. I ran 15kw for a time. I've backed down to 10kw. 15kw was fun, but it was overpowering the wheels, tires, and brakes. 10kw still does some, but I can manage it. If I was running smaller DH tires, I could probably run >20kw with this bike, but where's the fun in tiny 2.5" tires? :mrgreen:

Huge power is fun, but I prefer to have a balance between power and control.

Image

Now thats a swing arm for big power :) I can hardly keep my front down and its scared me a few times, your frame looks like its got enough length to handle almost anything.

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