Electric Bikes - What drive can be better?

Crap, that would make the roadie equal to or beter than the fastest flying 200m time on the planet for an upright bike.
If you mean the one early in your video you catch up to him rapidly and then ease off by the looks of things and it appears to be downhill as well.
Don't think I will waste my time anymore.

"IF YOU HAVE 750 WATTS OF POWER THAT IS EFFICIENT from 1 TO 20 mph range on any hill " no motor I know of is truly efficient across that kind of rpm range. If you have 750 watts of power to the road,a low gearing,and a motor designd to have low end torque as well as a 4000 rpm efficiency range (load or not) 20 mph can be easily be done as easy as my Huffy in this video.
http://video.google.com/videoplay?docid=1920300182082053937

Crap, that would make the roadie equal to or beter than the fastest flying 200m time on the planet for an upright bike.
If you mean the one early in your video you catch up to him rapidly and then ease off by the looks of things and it appears to be downhill as well.
Don't think I will waste my time anymore.Actually it was slightly up hill.Watch the tip of the island down the road with the clouds on top go out of view as the road points up higher.
http://video.google.com/videoplay?docid=-3461469945722451879
The roadies here practice every day to compeate climbing the volcano.Why did you bother to waste your time to begin with? to learn something?

Doesn't change the fact that the fastest upright speed is 45~6mph for a flying 200 meters, this is trained for all year and they only achieve this speed once for 200 meters.
A 1 hour standing start record on an aero UCI bike is 35 mph and that rider is close to 2 mph faster than the next best.
I actually do learn thats why I can state the above I looked it up to confirm my memory.
If your Roadies are as quick as you claim (in case you missed it, not possible.) they would dominate every bike competition in the world, scared it shows your true speed?

Doesn't change the fact that the fastest upright speed is 45~6mph for a flying 200 meters, this is trained for all year and they only achieve this speed once for 200 meters.
A 1 hour standing start record on an aero UCI bike is 35 mph and that rider is close to 2 mph faster than the next best.
I actually do learn thats why I can state the above I looked it up to confirm my memory.
If your Roadies are as quick as you claim (in case you missed it, not possible.) they would dominate every bike competition in the world, scared it shows your true speed?

Sometimes the truth hurts. Perhaps Randy could shoot a video with a GPS speedo visible in the frame.

Sometimes the truth hurts. Perhaps Randy could shoot a video with a GPS speedo visible in the frame. And perhapps Lowell can be the moderator here and get a girl scout tag team together to prove any real hub motors performance figures without pedaling on complete round trips any where farther than 20 miles up hill and back..To do REAL tests you need to do the extream to get the real figures.

You worry about efficiency but then state "IF YOU HAVE 750 WATTS OF POWER THAT IS EFFICIENT from 1 TO 20 mph range on any hill " no motor I know of is truly efficient across that kind of rpm range. That's only what YOU know of.Or you thinking of hub motors?

That's only what YOU know of.Or you thinking of hub motors?

What's your Wh/km number at 1mph?

What's your Wh/km number at 1mph?Is that when you are pushing your ebike walking ? Ask your Girl Scouts to figure it out in cookies per mile.

What gear system are you using, EbikeHawaii, you keep changing gears, if its a geared hub, i don't think you can shift while pedaling...or powering it with a motor. Well at least with my nexus inter 4 and 3 you cant.

What gear system are you using, EbikeHawaii, you keep changing gears, if its a geared hub, i don't think you can shift while pedaling...or powering it with a motor. Well at least with my nexus inter 4 and 3 you cant. Thats why I use the best 3 speed multispeed gear hub ever made for a bicycle.Sachs motorcycle company designed them for Sram.With over 25,000 miles on them with ZERO failures using 1600 watts on speed shifts I would not consider any other geard hub..Watch the videos.

Is that when you are pushing your ebike walking ? Ask your Girl Scouts to figure it out in cookies per mile.

You said efficient from 1-20mph. That would imply you have tested from 1 to 20 mph.

You said efficient from 1-20mph. That would imply you have tested from 1 to 20 mph.Why don't you go back to your Girl Scout forum to troll?


It was LOWell who booted me from the last forum and our new friend ROBBie got me kicked of the last, with his lies. "
EbikeHawaii (Randy) on bikeforums site on 6/28/07 Ewheelie Video to the Rain Forest - thread

He makes a good point, Lowell was out to get him banned from here
and everytime he posted Lowell was there with some argument, and then Draper goes to another forum and lo and behold the same Lowell is tormenting him over there. Lowell you need help man. And this Lowell is a moderator here? Give me a f*#$ing break!
http://endless-sphere.com/forums/viewtopic.php?t=1239&postdays=0&postorder=asc&start=30

Why don't you go back to your Girl Scout forum to troll?


It was LOWell who booted me from the last forum and our new friend ROBBie got me kicked of the last, with his lies. "
EbikeHawaii (Randy) on bikeforums site on 6/28/07 Ewheelie Video to the Rain Forest - thread

He makes a good point, Lowell was out to get him banned from here
and everytime he posted Lowell was there with some argument, and then Draper goes to another forum and lo and behold the same Lowell is tormenting him over there. Lowell you need help man. And this Lowell is a moderator here? Give me a f*#$ing break!
http://endless-sphere.com/forums/viewtopic.php?t=1239&postdays=0&postorder=asc&start=30

You're avoiding the real facts again. Is your motor efficient from 1-20mph or not? If you don't have data to back up your statement, then you are a flat out liar.

You make a lot of claims, but when it comes to the real proof, you always divert the question. Got something to hide? If you system is so great there should be no problem showing the data.

You're avoiding the real facts again. Is your motor efficient from 1-20mph or not? If you don't have data to back up your statement, then you are a flat out liar.

You make a lot of claims, but when it comes to the real proof, you always divert the question. Got something to hide? If you system is so great there should be no problem showing the data. Race up the volcano with the ebike set up you are using today and I'll bet you 20 grand I will beat you using less watt hours. You say you have a 40 ah pack ? I will use the same.I will not answer any of your questions because you try to copy and 1 up my figures to write in your drained brain.

Recently Steorn announced it would unveil Orbo, at, of all places, a London art gallery on July 4. However, the demonstration was a failure, because Orbo failed to work. Steorn's official explanation sounds remarkably like the excuses offered by all fringe inventors after their machines fail to work in front of an audience: "We are experiencing some technical difficulties with the demo unit in London. Our initial assessment indicates that this is probably due to the intense heat from the camera lighting."


Just replace "Steorn" with "Randy"

Recently Steorn announced it would unveil Orbo, at, of all places, a London art gallery on July 4. However, the demonstration was a failure, because Orbo failed to work. Steorn's official explanation sounds remarkably like the excuses offered by all fringe inventors after their machines fail to work in front of an audience: "We are experiencing some technical difficulties with the demo unit in London. Our initial assessment indicates that this is probably due to the intense heat from the camera lighting."


Just replace "Steorn" with "Randy"

What's this have to do with e bikes? or any kind of bikes for that matter? Or is it just another example of Lowell's trolling? Do you ever ride your Widowmaker contraption Lowell? or just post endlessly here and at endless sphere where apparently you are a moderator.

Recently Steorn announced it would unveil Orbo, at, of all places, a London art gallery on July 4. However, the demonstration was a failure, because Orbo failed to work. Steorn's official explanation sounds remarkably like the excuses offered by all fringe inventors after their machines fail to work in front of an audience: "We are experiencing some technical difficulties with the demo unit in London. Our initial assessment indicates that this is probably due to the intense heat from the camera lighting."


Just replace "Steorn" with "Randy" Every time I climbed the volcano everything has worked in the Hawaiian sun.If ebikes were made so great why wont anyone give me a challange up the steepest road in the world from the beach to 10,005 feet in elevation ? I take it that no manufacture wants bad publicity for there great ebike products that won't make it 10 miles up the volcano..

"Race up the volcano with the ebike set up you are using today and I'll bet you 20 grand I will beat you using less watt hours. You say you have a 40 ah pack ? I will use the same.I will not answer any of your questions because you try to copy and 1 up my figures to write in your drained brain."

Randy makes claims, and then conveniently has no numbers to back them up. While perpetual motion is far fetched, you have to admit there's a certain resemblance in the excuse department.

As for my ebike, I've ridden 690km for the month of July, so I should be at the normal 1000km by the end of the month. Thanks for asking.

Every time I climbed the volcano everything has worked in the Hawaiian sun.If ebikes were made so great why wont anyone give me a challange up the steepest road in the world from the beach to 10,005 feet in elevation ? I take it that no manufacture wants bad publicity for there great ebike products that won't make it 10 miles up the volcano..

I suspect it's because the general public buying ebikes cares more about getting to where they need to go, rather than climbing volcanos. It would be interesting to see the statistics, but I would think the majority of ebike use is for commuting in urban settings. (that means no volcanos)

I suspect it's because the general public buying ebikes cares more about getting to where they need to go, rather than climbing volcanos. It would be interesting to see the statistics, but I would think the majority of ebike use is for commuting in urban settings. (that means no volcanos)
There are still many millions of people who have large hills that hub motots/controllers from todays ebike peoducts that WILL fry! People are all not like you stuck in a flat nasty city.

EbikeHawaii (http://bikeforums.net/member.php?u=90245)I saw a picture of what I think was your bike once. I hate to say it but, no matter hew well it preformed, it was ugly. The batteries were hanging under the bottom bracket leaving almost no ground clearance and I am not clear if it could be pedaled (if that was not your bike them I apologize).

I realize that the hard numbers that some are asking for are hard to get. reproducible conditions (reproducible anywhere, not just on one spot on the planet), good amp hour meters, a low power dyno, and observers are hard to coordinate. However, would it be possible to see detailed photos, schematics, and construction details for your design? Many DIYers would probably like to see the ideas and solutions that you have incorporated.

EbikeHawaii (http://bikeforums.net/member.php?u=90245)I saw a picture of what I think was your bike once. I hate to say it but, no matter hew well it preformed, it was ugly. The batteries were hanging under the bottom bracket leaving almost no ground clearance and I am not clear if it could be pedaled (if that was not your bike them I apologize).

I realize that the hard numbers that some are asking for are hard to get. reproducible conditions (reproducible anywhere, not just on one spot on the planet), good amp hour meters, a low power dyno, and observers are hard to coordinate. However, would it be possible to see detailed photos, schematics, and construction details for your design? Many DIYers would probably like to see the ideas and solutions that you have incorporated.It may be better that you sift your way through forum archives.Every time I post my figures and explain stuff the hub motor cronies start making charts for there hub motors.. LOL Its really easy to the figures but then i will always get 1 upped by someones BS. Just watch my videos if you want to see and hear the actual performance.

Just watch my videos if you want to see and hear the actual performance.

Sorry, the country I am in (teaching at a college) does not allow access to Google Videos.

Gee I have and/or have had geared drives, b/b drives, hub drives. my everyday riding terrain means in excess of 20% slopes.
So why am I calling you out on the data.
Ps. I have never burnt out any type of drive system on hills a lot steeper than my normal ones.

Crap, that would make the roadie equal to or beter than the fastest flying 200m time on the planet for an upright bike.
If you mean the one early in your video you catch up to him rapidly and then ease off by the looks of things and it appears to be downhill as well.
Don't think I will waste my time anymore.Your not wasting my time any more either.

direct link to flyer shown
http://www.greenspeed.com.au/sunstar.jpg

<homer simpson>

mmmmmmmmm buttery efficiency

</homer simpson>

did anyone else catch that?

People are so used to Chinglish these days that you just have a chuckle and keep reading.
I am still waiting for more details of the GS testing.