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Posted

Electric will really go nowhere without continuously greater government subsidies and or mandates or without the development of an all new superconductor.

Posted
5 hours ago, mogandave said:

Electric will really go nowhere without continuously greater government subsidies and or mandates or without the development of an all new superconductor.

What would you need a superconductor for? Literally the only problem for electric vehicles is current batteries low energy density and I don't think a superconductor helps there in any way. The government also does not need to subsidize electric, it's already cheaper than fossil fuels. There will be no way around this huge change. I will certainly miss ICE motorcycles but I don't see any way to continue like we have so far.

Posted
What would you need a superconductor for? Literally the only problem for electric vehicles is current batteries low energy density and I don't think a superconductor helps there in any way. The government also does not need to subsidize electric, it's already cheaper than fossil fuels. There will be no way around this huge change. I will certainly miss ICE motorcycles but I don't see any way to continue like we have so far.


I doubt very much when you look at all the costs of an electric vehicle, it is not currently (no pun intended) cheaper than IC.

Superconductor technology greatly reduces the amount of power required required for most anything.

Yes, the problem is the batteries, but that’s like saying the problem with IC engines is that they burn fossil fuels. There are no new generation batteries on the horizon, and the materials are expensive, not environmentally friendly and pretty limited.

If electricity is so cheap, why do not all trains run on electric? Technically they do (at least in the US) but the locomotive generated the electricity. With superconductor technology, you could just put lo voltage pickups on the tracks. You could do the same thing with cars and bikes on the highway.



  • Like 1
Posted

 

      I've seen this bike at my mechanic Somchai in Sisaket. The rear tire is so fat that you don't really need a side stand.

 

   The front fork is so long that any curve is impossible to make.

 

  It's got an automatic gearbox you can shift by hand. A Honda 750 Four engine produces the horses.

 

Please look at the rear tire, hard to understand what holds it.

 

The bike's sitting on the two left mufflers now. 

 

  But I'd not ride that thing, it's more for your living room. 

 

   

Honda Chopper II.jpg

Honda Chopper.jpg

Posted
10 hours ago, mogandave said:

 


I doubt very much when you look at all the costs of an electric vehicle, it is not currently (no pun intended) cheaper than IC.

Superconductor technology greatly reduces the amount of power required required for most anything.

Yes, the problem is the batteries, but that’s like saying the problem with IC engines is that they burn fossil fuels. There are no new generation batteries on the horizon, and the materials are expensive, not environmentally friendly and pretty limited.

If electricity is so cheap, why do not all trains run on electric? Technically they do (at least in the US) but the locomotive generated the electricity. With superconductor technology, you could just put lo voltage pickups on the tracks. You could do the same thing with cars and bikes on the highway.


 

Currently the purchase price is higher yes, agreed. But again that's because of the batteries. And with bigger and bigger mass production that'll change.

 

Superconductors don't greatly reduce the power required for most anything as you say. The help with some losses in wiring but that's really not an issue. The electric motor itself can easily get over 90% efficiency. Losses there are because of the magnetic field. A superconductor wont change this for example. The whole electric vehicle gets 60%+ from grid to power on the wheels. An ICE gets maybe 20%. Superconductors are really not needed nor are people looking into getting them into these scenarios.

 

You claim there are no new types of batteries on the horizon but there is absolute tons and tons of research into batteries and improvements. Hundreds of millions put into research. Not just because of electric vehicles but also smartphones. Compare that to what's going on with fossil fuels...

 

You claim the materials for batteries are limited. Well yes, everything is limited but not that it would be an issue. There's enough lithium in the sea to build a car for every person in the world with the capacity of a top tier Tesla without running out of it. And contrary to oil, the Lithium wont be consumed and disappear. Saying batteries are not environmentally friendly when compared to oil is silly.

 

In Europe a lot of trains run on electricity, there are buses and trams that run on electricity. Electricity from renewables compared to fossils is already cheaper per kWh than fossil fuels. But, storage is the issue.

Again, superconductors wont suddenly let you run cars and bikes with it on a highway, can you explain to me how that would work? These are not fixed tracks.

 

 

To come back on topic though... let me post the electric Hades by Curtiss.

 

Curtiss-Motorcycles-Hades-electric.thumb.jpg.97f628bc2b38024d27468b04571a34c4.jpg

Posted
42 minutes ago, thaiguzzi said:

Of all the engines i've worked on, the Guzzi big v twin is the most enjoyable, simple, and cleverly designed.

For me ...

#1 - Panhead

#2 - Shovel

Posted

Sticking with rotary engines, a gorgeous 2009 Crighton-Norton NRV588

image.png.e963c8ab4aed16bd0a3252f168090fa5.png

 

image.png.9934508486a566a13c7c3b52a0998b61.png

 

Check out that red hot exhaust under testing:

 

 

  • Like 2
Posted
4 hours ago, Damrongsak said:

Note the well-hidden master cylinder for the brakes.

Wonder why the brake lines were run like that. Seems like it would unnecessarily make things complicated with all that movement back and forth when the front turns.

Posted
On 7/28/2019 at 11:50 PM, Justgrazing said:

 

IMG_20190728_174037.jpg

What i like about Wankels is they sound like a two-stroke. Well i suppose in a way they are. Lots of sound bites on interweb

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  • Thanks 1
Posted
1 hour ago, eisfeld said:

Wonder why the brake lines were run like that. Seems like it would unnecessarily make things complicated with all that movement back and forth when the front turns.

 

6 hours ago, Damrongsak said:

Note the well-hidden master cylinder for the brakes.

BMW's from that period with the first front disc brakes ran that system stock.

M/cylinder on the frame, not on the bars.

That, along with not brilliant sliding calipers gave early BM disc brakes a (deserved) poor reputation.

Although the pike in the pic wears period (and far better) Brembo calipers, and has prolly kept the original BM m/cylinder arrangement for a clean h/bar look.

I would of said sod the clean look, stick a proper Brembo m/cylinder on the bars....

 

Here's a neat 650;

04_04_2019_Matt_Hart_BMW_R65_Scrambler_Custom_Pipeburn_01.jpg.f73c9a9c0ff364b91bbd46b466af8af2.jpg04_04_2019_Matt_Hart_BMW_R65_Scrambler_Custom_Pipeburn_02.jpg.ba7288c8dc032b5f6206e958aed3599f.jpg

 

 

 

  • Like 2
Posted
4 hours ago, VocalNeal said:

What i like about Wankels is they sound like a two-stroke. Well i suppose in a way they are. Lots of sound bites on interweb

Indeed they do V N .. Not to mention their popping , banging and flame grilling anyone too close on the over run .. 

The awesome 4 rotor 787B at Goodwood a few yrs ago .. 

 

IMG_20190731_062719.jpg

  • Like 1
Posted
BMW's from that period with the first front disc brakes ran that system stock.
M/cylinder on the frame, not on the bars.
That, along with not brilliant sliding calipers gave early BM disc brakes a (deserved) poor reputation.
Although the pike in the pic wears period (and far better) Brembo calipers, and has prolly kept the original BM m/cylinder arrangement for a clean h/bar look.
I would of said sod the clean look, stick a proper Brembo m/cylinder on the bars....
 
Here's a neat 650;
04_04_2019_Matt_Hart_BMW_R65_Scrambler_Custom_Pipeburn_01.jpg.f73c9a9c0ff364b91bbd46b466af8af2.jpg04_04_2019_Matt_Hart_BMW_R65_Scrambler_Custom_Pipeburn_02.jpg.ba7288c8dc032b5f6206e958aed3599f.jpg
 
 
 


So it was a cable from the hand-lever to the MC?

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