First build

[recumpence]

With my twin 3210 BMX bike, I got the wind knocked out of me when I leaned over the bars trying to spin the tire on the pavement. I got rolling, layed with my entire 195 pound body weight on the bars and hit the throttle. The bike instantly wheelied and knocked the wind out of me.

I learned not to do that any more.

Rodger, if you are only seeing 190 amps per controller, you could gear it way up and still be safe. 250 amps per controller is safe if it is in bursts (and bursts are all you could even see considering the wheelie potential).

I would put a 44 tooth sprocket on there and watch the speed increase tremendously. Of course, you are on your own as far as safety goes. :wink:

Matt

 

[AussieJester]

I would put a 44 tooth sprocket on there and watch the speed increase tremendously. Of course, you are on your own as far as safety goes. :wink:

Better yet Rodger, install the twin Astro 3220's on your mates hard
tail mountain bike, THEN put a 44 tooth on the back...oh
wait, you already have ...ok, ok get in your newly purchased
G-CUB mobile point the camera at mate on bike and tell him to go for it...
Rodger's safety then Matt, will not be in question :lol:

Pics too of new ute please Rodger you Geeky Cashed Up Bogan

KiM

 

[Whiplash]

So is the electronic side of setups like this reliable now? I am just getting back into it and if I can use the Castle speed controller or similar controller with my little Turningy, I would LOVE to take advantage of the size/weight of the RC controllers. Have things changed or do they still burn up on occasion? I am planning only one motor run through the bikes gear cluster, so the low speed loads will be far less than a single speed application, I plan on riding it like a dirtbike shifting a lot.

By the way, this bike is UNBELIEVABLE!! The coolest thing I have seen in a while! I want to see it getting dirty though! Lets see some rough stuff on a motocross track or something, hell I bet you could out ride a 125cc bike or maybe even a 250! Actually that would be HELLA COOL to see a side by side comparison of this bike at full twist against a real dirtbike!! COME ON WE ALL WANT TO SEE IT!! PULEESE!!

 

[Thud]

Whip,
The "reliability" of any controller set up is directly in proportion to the amount of stress on the system. Rodger's set up is pretty tame in regard to controller stress as Matt pointed out.

The bigger issue is the bikes geometry & power levels....& posibly the lack of a true lineal throttle responce.
even with the ramping servo interface, the controller step to the next power level & the bike wheelies.
It was an issue on my bmx set up for road cornering....healed over in a slow turn & roll on the throttle & the front wheel would lift...makes for a wide turn or sometimes a ballet' like piroeut. lol either way its exciting to say the least.

Streatch that wheel base to 55" & its a whole different animal. (not tame...but much more ridable)

 

[Whiplash]

It is really impressive to say the least from a power standpoint! I mean my CBR954rr was not that wild!

 

[Ariane]

Lets see some rough stuff on a motocross track or something, hell I bet you could out ride a 125cc bike or maybe even a 250! Actually that would be HELLA COOL to see a side by side comparison of this bike at full twist against a real dirtbike!! COME ON WE ALL WANT TO SEE IT!! PULEESE!!

Whiplash with 7 KW (9 HP) and over you can pop up wheelies on paved road at 30 Mph like Roger did with his ebike very easy, with any motor and the appropriate gearing and you don't need to pedal your ebike from a dead stop like he did

If you try to beat a 125 CC or 250 CC motocross on a motocross track with the perfect "handling ebike of the world" you still need more power output, better traction and better suspension then this ebike is able to give, but its a nice dream. :wink:

P.S. Please excuse my English I'm not English Natively and I don't understand physic law, and it's really worse when i'm talking about electric motocross and ebike even if i have build my electric motocross and ebike from scratch like many other users here. :lol: :lol: :lol:

Good day!
Black Arrow

 

[recumpence]

Lets see some rough stuff on a motocross track or something, hell I bet you could out ride a 125cc bike or maybe even a 250! Actually that would be HELLA COOL to see a side by side comparison of this bike at full twist against a real dirtbike!! COME ON WE ALL WANT TO SEE IT!! PULEESE!!

Whiplash 7 KW (9 HP) and pop up wheelies on paved road at 30 Mph like Roger did with his ebike is easy to do for everyone with any motor and the appropriate gearing and you don't need to pedal your ebike from a dead stop

If you try to beat a 125 CC or 250 CC motocross on a motocross track with the perfect "handling ebike of the world" you still need more power output, better traction and better suspension then this ebike is able to give, but its a nice dream. :wink:

P.S. Please excuse my English I'm not English Natively and I don't understand physic law, and it's really worse when i'm talking about electric motocross and ebike even if i have build my electric motocross and ebike from scratch like many other users here. :lol: :lol: :lol:

Good day!
Black Arrow

This bike has WAY more than 7kw. He is about 18kw right now with more available. That is the power of a 125cc motorcross bike with about 1/4 the weight. Actually, the torque of Rodger's system far exceeds that of a 2 stroke 125cc bike.

I do agree he would need more durable components to compete with a motorcross bike on a track, however.

Matt

 

[Whiplash]

It would still be fun to see in the current form!

 

[Ariane]

It would still be fun to see in the current form!

Of course yes and i will be waiting to see it :wink:

Black Arrow

 

[hydro-one]

k im thinking of a limit switch on the fork. when the fork opens up it hits the switch, it drops the throttle until it returns to a preset level. this will keep your wheel loaded when u need it ,,,,,,

mike

 

[AussieJester]

...the bike has been stripped the next time you see it it will have the big Turnigy motor attached to a
neugart gearbox mounted on it. Rogers mate has the 2x 3220 Astros setup on his hardtail MTB now, I will try my hardest
to coax Rodger into convincing his mate into doing some sepeed runs, from all accounts, he ain't the brightest
chook in the shed so we might have some luck there :lol: hehe...

KiM

 

[Whiplash]

He took it apart?? WHY? Just too unruly?? It did seem hard to ride!

 

[hydro-one]

THIS IS SO AWESOME !!!!! I want to see records falling !!!!

Seroiusly be careful kids, id say full body armour is in order. good helmet and supercycle mitts. I know were all born lucky and mostly have proof of this too eh?? but this thing is WILD WILD WILD !!!!!!!!



you auzzies are crazy!!!! thats all i can say

mike , frozen in manitoba -30c

 

[-Bugsy-]

...the bike has been stripped the next time you see it it will have the big Turnigy motor attached to a
neugart gearbox mounted on it. Rogers mate has the 2x 3220 Astros setup on his hardtail MTB now, I will try my hardest
to coax Rodger into convincing his mate into doing some sepeed runs, from all accounts, he ain't the brightest
chook in the shed so we might have some luck there :lol: hehe...

KiM

Does this mean he's getting rid of his twin 3220 setup??? hmmm ...

 

[rodgah]

...the bike has been stripped the next time you see it it will have the big Turnigy motor attached to a
neugart gearbox mounted on it. Rogers mate has the 2x 3220 Astros setup on his hardtail MTB now, I will try my hardest
to coax Rodger into convincing his mate into doing some sepeed runs, from all accounts, he ain't the brightest
chook in the shed so we might have some luck there :lol: hehe...

KiM

Does this mean he's getting rid of his twin 3220 setup??? hmmm ...

Yes that's correct, I have a twin 6 turn 3220 drive, 2 hv160, magura and throttle adaptor, high current cycle analyst and shunt that are all unused.....the only things needed is batteries and a rear sprocket. I have not put in the for sale section yet....lazy :lol: .

If you want a wheelie monster this will give you more power than you could ever use.

Cheers

 

[Byte]

Sorry for kicking this thread up again... Rodgah, or someone else... could you explain me how the hose clamps are mounted in this pic?

As far as I can see: Bolt through an alu piece, a few washers (I can't see these in the pic though?), hose clamp's first hole, drive unit, hose clamp threaded hole, again a few washers, another alu piece and a nut to tighten the whole thing together. And that 4 times. Is this right?

 

[boostjuice]

See: http://endless-sphere.com/forums/viewtopic.php?f=28&t=22089&p=321676