OzVMX Forum
Clubroom => General Discussion => Topic started by: Graeme M on April 06, 2011, 07:48:58 pm
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Electric bikes, what do you think? I love em!
Interview with Zero:
http://www.vitalmx.com/forums/Moto-Related,20/Sweet-Sound-of-Zero,1215275
KTM Freeride:
http://www.cyclenews.com/articles/new-bikes/2010/03/24/ktm-s-all-new-electric-bike-unveiled
Electric flat tracker - bit too much snap off the bottom, but neat. Half way thru this vid (and mute the sound for God's sake):
http://www.cyclenews.com/articles/flat-track/2011/04/05/video-halbert-goes-racing-again
Electric superbike:
http://www.youtube.com/watch?v=WMzGa-uhACc
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An article in a new Pommy mag rates one up against the 125 KTM enduro, was faster out the gate and up the hill but lost out on slippy switch backs and downhill. Zero eng braking didn't help and nor did a 19'' front hoop but the tester was somewhat impressed. And not to forget the twostroke has about 100 years of development head start-what I mean is -where will the electro be in a few years??
I have ridden the Zero and was impressed but it lacked throttle response-had about the same as my CL50 that I grew up with-so not too good for trials, which I thought it would be great for.
So I guess the verdict is still open for now. Might be good in traffic if in motard guise.
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Zero eng braking didn't help
Good electronics will sort that.
Apart from that: yeah good. Not quite there yet but they will be with 10-15 years.
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Electric bikes, what do you think? I love em!
For girls. ;D ;D
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Nah... real f****n men.
The big thing is the lack of noise. We all love the noise, but no-one else does. So once the things are pretty much silent, they'll totally change the whole scene. In fact, they'll become cool and the chicks will love them cos they'll be sorta tough but cute. Like mountain bikes only tougher cos they go faster...
That's what I reckon ;)
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just on the noise thing- they still run chains which seem to be the noisiest part of them- so why wouldn't they run belts. If they can do it on a Harley with all the torque, why not on a electro??
The other thing they noted in the test was the ammount of chassis noise when it was bouncing over things-noise not normally heard because engine noise would cover it.
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I had a spin on the electric dirt bike Drakie was riding around at the Conondale Nats and loved it.
I'm not sure if they're the future of off road sport but I can see the advantages of them as Ag or posty bikes. In fact, my posty rides an electric pushy ATM and reckons it's a cool thing. It drives through the front wheel but I haven't looked hard enough to see how it works.......
ps...One dangerous disadvantage of the electric bike is the silent running. While riding around the pits I couldn't believe the number of people who walked right in front of me because they couldn't hear me coming. My thumb was permanently fixed to the horn button. ;D
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A electric salt lake race team put their bike on the dyno here a while ago culminated in a big bang and a fire when one motor went south.
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this little jigger is the Mission R, 150+ hp, everything on it is top of the line and it was styled by the guy who did the current Fireblade.
(http://i245.photobucket.com/albums/gg71/marcFX_photo/5265100673_304cb2ef1a_b.jpg)
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now doesn't that look stunning!
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Where's the horn on that ??? -prolly on the rider I'd say !!!
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I can't wait for electric dirt bikes, watch out golf courses.
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You wouldn't have to worry about the 'Noise nazis' wanting to close down MX tracks like Fairbairn Pk at Queenbeyan, eh Graeme?
If you want some real electric power have a look at US electric drag race bikes like KillaCycle, 1/4mile, 7.8 secs, 168mph.
www.myrideisme.com/Blog/killacycle-is-godzilla/
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You wouldn't have to worry about the 'Noise nazis' wanting to close down MX tracks like Fairbairn Pk at Queenbeyan, eh Graeme?
If you want some real electric power have a look at US electric drag race bikes like KillaCycle, 1/4mile, 7.8 secs, 168mph.
www.myrideisme.com/Blog/killacycle-is-godzilla/
Knuckleheads. I have raced on that track a long time ago; a beaut little circuit. It will be a pity if the Noise Nazi's win and it gets closed up. Where do they think everyone is going to ride when everything is shut down? >:( >:(
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you will have to buy a prious to tow it around
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you will have to buy a prious to tow it around
They do more damage to the environment overall to make those girls cars than an old EH or XP Falcon would ever do in a fifty year lifetime. Can anyone see one of these modern electric hybrid cars lasting longer than say ten years in circulation; and then it all goes off to be recycled because it's forked. Sustainability; what does that mean? Politicians are full of s#*t. ::) ::)
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Having worked in the industry(cars) for 25yrs and been with bikes before that since almost just out of school , I can tell you now that cars (any type) last longer than 10yrs and that's the way they want them.
Holdens and Falcons are no longer the long term option they used to be and evan the Camry/Corolla that was the mainstay of reliability are only good for 10. The Rav 4 ( camry in a box) is only good for 200K klm and most of the new Korean shite wont last that long.
Pop Quiz Time.
Which car in the world has the highest 'customer satisfaction rating' ???
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Are we talking modern cars only, or any cars?
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In the current market-no vintage stuff here mate.
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Which car in the world has the highest 'customer satisfaction rating'
Toyota Corolla ?
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Which car in the world has the highest 'customer satisfaction rating'
Toyota Corolla ?
Still not without a few hiccups.
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common guys try harder, what about mercs......nah. Bemmers......nah. VW.............BIG nah(worst in fact-behind Mahindra and Sangg Yong) Toyotas are high up with the good ones but have had trouble in the US-not sure if that recall was a stunt as MB did something similar in the 90's and sales went up not down!!.
I'll give you one more guess, but it's not Scoda-which iin fact is far better than its parent VW.
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I give up. Haven't cared much for anything built after the '70's anyway.
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Electric . freeride all sounds like a load of BOG, how much fun could you have on a bike with no gears it would be like riding a JOG scooter not even as cool as a postie bike. has anyone tried to get hold of an electrician these days thats what you will need when it breaks down. might even be like a battery drill when it breaks buy a new one its cheaper.
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This is one of the most lucid arguments against 'leccy motors I've seen:
"Electric is certainly interesting but the physics shows the problem, a gallon of petrol has an energy equivalent of about 90 kWhrs, with an engine efficiency of typically 25% that gives about 22kWhrs of useful energy, with 0.746 kW = 1 hp that is roughly 30 bhp for 1 hour for 1 gallon which seems about right.
A current practical Lithium battery about the same volume as a gallon of petrol would typically be 24V at 100Ahr or 2.4 kWhrs, this is one tenth of the energy that an IC engine can produce from our 1 gallon of petrol! Also the battery will be much heavier than the gallon of petrol.
From: http://www.trialscentral.com/forums/topic/20092-what-is-the-future-4-stroke-or-2-stroke/page__st__15 (http://www.trialscentral.com/forums/topic/20092-what-is-the-future-4-stroke-or-2-stroke/page__st__15)
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A current practical Lithium battery about the same volume as a gallon of petrol would typically be 24V at 100Ahr or 2.4 kWhrs, this is one tenth of the energy that an IC engine can produce from our 1 gallon of petrol! Also the battery will be much heavier than the gallon of petrol.
I'm not sure why he quotes the weight of the electric storage device and compares it with the combustion engines fuel. I could be a bit shifty and just compare the weight of electricity to a gallon of petrol in arguing the pro's of electric motors but nothing is that simple to compare without taking in all factors. A 24v 100Ah lithium battery is a bit odd too and not what I would call typical.
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Question guys.
How far will a PRIUS [ you know one of those electric cars that are going to save the world]
go on the battery alone?
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Don't know how far but local gas fitter has converted one to petrol/elec/LPG and now costs just 3 cents per kilometre to run.
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went in a taxi Prius the other day (couple actually) - was surprised how low the battery storage level was and how quickly once running it re-charged to 100% - now either makes lots of battery or doesn't hold much initially?
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I'm not sure why he quotes the weight of the electric storage device and compares it with the combustion engines fuel. I could be a bit shifty and just compare the weight of electricity to a gallon of petrol in arguing the pro's of electric motors but nothing is that simple to compare without taking in all factors. A 24v 100Ah lithium battery is a bit odd too and not what I would call typical.
To be pedantic he doesn't. He merely compares the weights of petrol vs battery. You'll probably find that petrol plus the IC motor is pretty much on par with battery vs electric motor.
I don't know what the typical discharge rates are for litium batteries. I did a search but no specifics. Admittedly a 100 A/H is pretty radical but that implies that a lithium-electric motor combo would be even further off the pace.
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All the Prius cab drivers that I have talked to keep saying that the car has to run on the IC engine a lot as the electric motor hasn't got enough power for hills, heavy loads or speedy departures from intersections. They save a lot on fuel but I'm betting all that saving will go on the first set of replacement batteries and the old ones will go into a landfill that is filling even faster with eco-friendly car parts because they are too bloody expensive to fix when they are worn out.
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Looks like an electric trials bike couldn't be far away, the article on trials australia reckons gas gas are considering developing it for sale next year
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As far as I know Tony, it's not an official Gasser project but was developed by a shop in Austria. Maybe Gasser have purchased the IP?