Luke's commuter bicycle. What Non-hub is all about.

[gor.]

100 mph - if it's with pedalling - that's cheating : ))

 

[liveforphysics]

Does that mean that when it is geared for 60mph it is even faster at acceleration ? Or wouldn't that make any difference since you have this enormous torque ?

It's never been geared for only 60mph, it was just 60mph that I was setting my front tire down from the power wheelie at. If I was sitting back I could maybe hold a wheelie to 70mph, but I'm not even trying to wheelie, just trying to see if I can apply the new found 19% power increase.

Luke, Thanks for all these pics... But....

I think to be faire and transparent comparaison between hub and non hub ebike, you must take a video of these dyno test... just like you did with the hub..

Otherwise... filming a hub motor melting and catching in fire on a dyno after abuse is not fair in comparaison with your actual motor test since it's only pics we get of these test on teh dyno

We want to hear that sound out of this non hub ebike!! ON THE DYNO TOO 8)

cmon! :wink:

Doc

It's been such a handful trying to keep this bike ON the dyno strapped in place and keeping the tire from spinning against the roller that I've not made a single video of making a pull yet. It pretty much destroys a new 24" hookworm tire for each time you want to make a few dyno pulls, even with the big rachet straps holding the bike down.

BUT!!! Despite it costing me a tire each dyno session, I will still try to make a video for you Doc. I don't know if it will be before the weekend though, as I'm really busy with projects at work right now.

 

[liveforphysics]

how you guys manage to squeeze more power from golden - 18kw peak, 17kg ? peak rating sec-? how far you pushing it?
agni95 - 30 kw, 11kg; torque 0-4800: 29 ft-lbs golgen vs agni - 50 ft-lbs; and agni 30kw peak rating - 5 sec - already, as is ...

We have substantially higher than 30kw OUTPUT from this motor, and for longer than 5 seconds...

 

[Ypedal]

should we start a paypal donation tire fund ? lol..

 

[dbaker]

Time to move to the Pirelli M75?

 

[nicobie]

Time to move to the Pirelli M75?

I'd chip in for that

 

[grindz145]

Time to move to the Pirelli M75?

Will that fit on his wheels?

 

[dbaker]

At these power levels time to move to a moped rim. 16, 17, or 18 inch.

 

[grindz145]

At these power levels time to move to a moped rim. 16, 17, or 18 inch.

agreed. If nothing else just to use better tires. (better being subjective and relative of course) Might not be as sticky but damn will they last a bit longer, and probably offer a bigger road patch.

 

[Whiplash]

Hey Luke, what kind of wheel torque are you seeing??

 

[liveforphysics]

Hey Luke, what kind of wheel torque are you seeing??

Enough.

Plenty.

I think its pushing the threshold of the tire carcass tearing, it has a lot of odd tears and peeling things happening to it, and its a pretty fresh tire.


I have pirelli Diablo scooter tires chilling under my desk, but I need to weld lower mounted dropouts onto the frame if I want to drop to a 20in.wheel, because its too low and the pedals strike otherwise.

 

[gor.]

Luke, what A , V you run Golden at? to catch-up with Agni you need roughly 190/170/150v at 220/250/300a
please, tell what you and Cedric do - it's important to everybody who runs bldc

 

[liveforphysics]

Luke, what A & V you run Golden? to catch-up with Agni you need roughly 190/170/150v at 220/250/300a
please, tell what you and Cedric do - it's important to everybody who runs bldc

We have 680 phase amps available. We are using 500 something right now. 100v

 

[gor.]

Luke, what A & V you run Golden? to catch-up with Agni you need roughly 190/170/150v at 220/250/300a
please, tell what you and Cedric do - it's important to everybody who runs bldc
View attachment 1

We have 680 phase amps available. We are using 500 something right now. 100v

550 will do...
...geezzz - torque - insane for this little motor
now i see why you been so excited (now i'm excited too)

 

[nicobie]

I think its pushing the threshold of the tire carcass tearing, it has a lot of odd tears and peeling things happening to it, and its a pretty fresh tire.

You can get a hookworm in 2 ply if that would help.

Isn't there a skinny bicycle sized motorcycle style rim that will take a MC tire that will have an effective OD like what you are now running?

 

[AussieJester]

The 20in bicycle rim takes the motorcycle tire there's already half a dozen people on this site using them. Motorcycle tires are measured on the I.D bicycle on the O.D 20in bicycle = 16in motorcyle. IIRC unless Luke has changed it since the Grange race? he had a cheapo single walled bicycle rim on the back and single walled hookworms.

KiM

 

[liveforphysics]

The 20in bicycle rim takes the motorcycle tire there's already half a dozen people on this site using them. Motorcycle tires are measured on the I.D bicycle on the O.D 20in bicycle = 16in motorcyle. IIRC unless Luke has changed it since the Grange race? he had a cheapo single walled bicycle rim on the back and single walled hookworms.

KiM

Super wide downhill rim and 2ply hookworm.

I have 20" bmx wheels with pirelli Diablo tires. They lower the bike so much you can't carve a turn without pedal strikes.

 

[fechter]

Hey Luke, what kind of wheel torque are you seeing??

Enough.

Plenty.

I think its pushing the threshold of the tire carcass tearing, it has a lot of odd tears and peeling things happening to it, and its a pretty fresh tire.

Hmmm... a new limitation. Take away all the others and that's what you get.

Wish I had that problem.

 

[Joseph C.]

Luke, you are nuts in a completely unreasonable way.

'The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.' George Bernard Shaw.

Don't get caught (I can see the headlines 'Monstrous Ebike Terrifies Motorists And Pedestrians!' ) and above all, stay safe.

 

[flathill]

Luke, what A & V you run Golden? to catch-up with Agni you need roughly 190/170/150v at 220/250/300a
please, tell what you and Cedric do - it's important to everybody who runs bldc
View attachment 1

We have 680 phase amps available. We are using 500 something right now. 100v

550 will do...
...geezzz - torque - insane for this little motor
now i see why you been so excited (now i'm excited too)

The agni is nice maybe for a servo but moving magnet always wins for force per magnetotal

 

[liveforphysics]

The agni is nice maybe for a servo but moving magnet always wins for force per magnetotal

Ehh, it's honestly a tough call. The only reason this setup works well is the controller. It's an extremely bad ass controller. This motor with a Kelly could never hang with a properly setup Agni, and I would put my money on the Agni being more reliable than the Kelly controller running the brushless motor. I've killed so many of the big Kellys now...

Take this freakishly good controller out of the equation, and I would get better performance from an Agni for sure. The Agni is also likely higher efficiency at all RPM points and power levels than this motor. The big difference is, this motor manages to survive absurd bursts of power that Agni's tend to fail at. However, do bet the Agni is capable of higher continous power than this motor. It's just the little squirting bursts that it has an advantage with, and fortunately, when coupled to a bicycle, it's not even possible to apply more than little squirts of power at a time, because you're going 60mph in 3.3sec, and 80mph in under 5 seconds, and by then, you're feeling pretty ready to stop accelerating and just cruise at those speeds rather than keeping the hammer down.

 

[flathill]

Agreed
im just saying in general for traction apps you probably want the copper stationary
but if your gonna go moving coil you want to go thin (if It is already decided
you want permanemt magnets for torque density)
ThinGap has some cool motors
I always wanted to try printing a 3d stator with insane copper fill and impregnating with polyimide

Shit man at this point your shifter cart fast!
When all you really need is f-zero wheelie control and a launch mode for a kart track up in norcal
life is looking pretty good

 

[Byte]

I think it's my favorite 2 wheel'd transportation option right now, and this is coming a guy with 4 motorcycles, including the best possible dirt machine and the meanest superbike.

Just curious, what superbike do you have?

 

[grindz145]

I think it's my favorite 2 wheel'd transportation option right now, and this is coming a guy with 4 motorcycles, including the best possible dirt machine and the meanest superbike.

Just curious, what superbike do you have?

gxr1000.

Meanest is a highly relative term...

 

[Bazaki]

This 0-60 in 3,3 sec is with this new Ebike ?

Oh boy, than you really can play with superbikes, no clutch no shifting, guaranteed 3.3 sec to 60mph