Belt drive GSXR?

**NinjaNanna** · 11th June 2012, 19:56

You must spread some Reputation around before giving it to roguenp again.

**Gremlin** · 11th June 2012, 20:23

damn... good job roguenp!

**Dave-** · 11th June 2012, 21:28

Originally Posted by roguenp

Well done, that was nice and long. The bike has a bms that does not allow it to run below 80% at which point it enters limp home mode. when I said 40 min for 80% I was referring to the usable charge. there is a site comparing the gas vs electric industry I'll try an find it an post link. I'm not really interested in a debate. I have made the first bike its great people love it that ride it an the next bike will only get better. we are talking motorcycles not cars big difference an I'm not talking fleets.

oh sweet, just to clarify, that's a 40 minute charge to get to 80%? and then that's worth 40 minutes of riding at top power? roughly of course.

are you using li-ion too?

**roguenp** · 11th June 2012, 22:01

No I don't believe I have stated distance you will get from that quick charge that's why it takes 3 hours to fully charge its that last little bit that gives you the most distance. Although that 40 min charge gives me two more days of riding back and forward to work.not sure why you are trying to prove me wrong.you are more than welcome to come see an try the bike out. I have only posted all info that the bike actually does for the purpose I use the bike for.no better an no worse than any other quality electric bike. Like I have mentioned earlier its not a replacement for fuel power, its not for touring or long distance but it is a great option for town and medium distances. Who knows what the future may bring.

**Dave-** · 11th June 2012, 22:35

Originally Posted by roguenp

No I don't believe I have stated distance you will get from that quick charge that's why it takes 3 hours to fully charge its that last little bit that gives you the most distance. Although that 40 min charge gives me two more days of riding back and forward to work.not sure why you are trying to prove me wrong.you are more than welcome to come see an try the bike out. I have only posted all info that the bike actually does for the purpose I use the bike for.no better an no worse than any other quality electric bike. Like I have mentioned earlier its not a replacement for fuel power, its not for touring or long distance but it is a great option for town and medium distances. Who knows what the future may bring.

yeah yeah I know dude, I'm not having a go, merely stating facts as I see them.

2 days of commutes out of a 40 min charge is excellent and the bike you've built looks stunning.

**Dave-** · 16th June 2012, 15:01

just had a thought, haha, you should get 0HERTZ as the license plate (it's available I checked)

unless you're running AC...

**skippa1** · 20th June 2012, 15:58

Originally Posted by roguenp

No I don't believe I have stated distance you will get from that quick charge that's why it takes 3 hours to fully charge its that last little bit that gives you the most distance. Although that 40 min charge gives me two more days of riding back and forward to work.not sure why you are trying to prove me wrong.you are more than welcome to come see an try the bike out. I have only posted all info that the bike actually does for the purpose I use the bike for.no better an no worse than any other quality electric bike. Like I have mentioned earlier its not a replacement for fuel power, its not for touring or long distance but it is a great option for town and medium distances. Who knows what the future may bring.

Nice bike man.....dont worry about the dick head, this is KB and you have to write between the lines as it appears thats where everyone reads from

**skippa1** · 20th June 2012, 16:02

Originally Posted by Dave-

Hi Boob! (we should have a yarn on fb or something, how was asia?)

Assuming he's using lithium ion (what are you using roguenp? li-ion? polymer? lead acid? lol) then you'll only have 80% of your power and range, which might sound like a lot, but the discharge graph of a typical lithium ion/polymer battery is almost constant for a long time then hits a point and decays exponentially, at 80% charge you'll only be 80% of the way up this graph giving you roughly 40 mins (according to the graph I'm looking at) which sounds fine and dandy but because it's an exponential decay your speed will be reduced as such, which means you can only ride for like 8 minutes before you have to turn around and ride back for 32 mins (8 and 32 is a bit of a guess but you get the idea), plus you wouldn’t want to drop below 10% of battery power before you started damaging things, if I were to call roguenp out on something that would probably be it.

I haven't actually done battery discharge yet, but I know how to read a graph, and unless there's some fundamental law of batteries I'm yet to learn I'm going to stand by my above statement.

No disrespect to rouguenp, someone has to do the hard yards, but when you do some maths you start running into some pretty big numbers, like how much power NZ would require to switch it's entire transport fleet to electric (if everyone charged for 3 hours it's ~40GW, which is 10x more than our current total output, with a network which breaks when we have a small snow storm - not going to happen) then you have the lack of lithium (not enough to go around - by a long way) unless another form of energy storage is found, or an asteroid is mined (which I think is more likely than all of the above and totally fucking awesome)

Anyone who wants to feel good about saving the environment needs to look at how, where, and how much it cost to mine lithium, then you've got to consider you're only moving the problem out of the exhaust pipe and into a nuclear reactor (which NZ would need, but never have) or as stated, 20x more power stations, which no one will put up cause it'll ruin their fishing spot/Native New Zealand slug reserve/swimming hole/view of a green hill identical to the one next to it)

Here's a graph of a typical Lithium Ion Battery discharge (admittedly this battery is much much smaller than one in a motorcycle, and admittedly I don't know how scale fits with time (I know intuitively it should make it longer, but this isn't an ordinary graph so I can't say) but everything I said here is relative to the red line on the picture:

[img][/img]

Wow that turned into a bit of a rant, it's really not I'm trying to be informative, but really I'm just procrastinating. Anyway I have to get back to study, finding the principle thinger of an ellipse using eigenvalues/vectors, FUCK YEEAAAAAAH

seriously

?????you read somewhere he was aiming at powering the entire transport fleet?????what a fucken rant about nothing

**Dave-** · 20th June 2012, 17:29

Originally Posted by skippa1

seriously

?????you read somewhere he was aiming at powering the entire transport fleet?????what a fucken rant about nothing

no you douchebag, I'm just pointing out some glaring holes in the EV solution.

**skippa1** · 20th June 2012, 19:11

Originally Posted by Dave-

no you douchebag, I'm just pointing out some glaring holes in the EV solution.

Ahhhh actually you took a thread where a few people were congratulating a guy for his clever build,a thred that he didnt start incidentally, and proceeded to blurt about how it wouldnt solve the worlds energy woes. Looked to me like you wanted to impress with your knowledge and maths skills. Cool

**Dave-** · 20th June 2012, 20:05

Originally Posted by skippa1

Ahhhh actually you took a thread where a few people were congratulating a guy for his clever build,a thred that he didnt start incidentally, and proceeded to blurt about how it wouldnt solve the worlds energy woes. Looked to me like you wanted to impress with your knowledge and maths skills. Cool

I was hoping to start lively debate on the EV solution with a guy who is clearly on the cutting edge of the development, not once did I actually insult the guy or his bike, infact I stated I meant no disrespect and then accepted his explination, asking more about the bike.

Then you came along and actually outright insulted me!? what a fantastic contribution, fuck I'm glad we have you to make sure everyone knows I'm a dickhead, all I posted was relevant, interesting, thought provoking, well researched information, clearly this pails in comparison to your petty insult.

Pathetic.

**skippa1** · 20th June 2012, 20:09

Originally Posted by Dave-

I was hoping to start lively debate on the EV solution with a guy who is clearly on the cutting edge of the development, not once did I actually insult the guy or his bike, infact I stated I meant no disrespect and then accepted his explination, asking more about the bike.

Then you came along and actually outright insulted me!? what a fantastic contribution, fuck I'm glad we have you to make sure everyone knows I'm a dickhead, all I posted was relevant, interesting, thought provoking, well researched information, clearly this pails in comparison to your petty insult.

Pathetic.

ahhhh please.....you dont need me to make sure eveyone knows youre a dickhead

**Dave-** · 20th June 2012, 20:14

Originally Posted by skippa1

ahhhh please.....you dont need me to make sure eveyone knows youre a dickhead

So you are redundant.

**NinjaNanna** · 20th June 2012, 20:16

Originally Posted by Dave-

I was hoping to start lively debate on the EV solution with a guy who is clearly on the cutting edge of the development, not once did I actually insult the guy or his bike, infact I stated I meant no disrespect and then accepted his explination, asking more about the bike.

That may be so but it is not how it came across.

The approriate way to have done that would have been to start your own thread and send the guy a pm with a link to the thread if you wanted his input.

Basically you came across as a young know-it-all upstart.