QUITE SIMPLY STUNNNING!!!!

[deecanio]

Hi All,

Here in my honest opinion is one of the best electric motorcycles i have ever seen.
Built by our beloved ex member (crying crying shame) JOZZ i give you the Mavizen TTXGP bike for 2010............
Details are scarce at the mo but hopefully i will have more information shortly once i catch up with the man himself but in the meantime enjoy..................


D

[Miles]

http://www.mavizen.com/

[AussieJester]

Not bad looking bike at all! ..can't say im a big fan of the motors protruding out the side like that particularly on a
race bike, be a new motor eveytime you drop it...

As nice as it is its still not in the same league as an ICE Sportsbike even... and i bet it cost a shitload more,
the electrics at the 2009 TT last year were god awfully slow compared to the ICE bikes and were only capable
of one lap of the circuit (37 mile ) John McGuinness on his 1000cc Honda managed ~127 mile an
hour AVERAGE (top speed OVER 200mile an hour) for 3 laps...Best lecky AGNI X01 ridden by Rob Barber
there averaged ~87 mile an hour top speed ~106 mile an hour...Sorry Mr Dave Luscombe "the dawn of a new era"
is a looooong way off pal...

...Least the lecy will look the part in the pitz

KiM

[Ypedal]

Amazing !!! this is pure awsome imo !

Can't compare this to the gas version really, this is a whole other class of racing, different motors, different fuel..

That Agni sure is sticking out there tho ( while still looking sexy. ), I recall reading someting about overheating motors when enclosed and pushed as hard as they are.. this is my RC bike on roidz !

[etard]

Not bad looking bike at all! ..can't say im a big fan of the motors protruding out the side like that particularly on a
race bike, be a new motor eveytime you drop it...

As nice as it is its still not in the same league as an ICE Sportsbike even... and i bet it cost a shitload more,
the electrics at the 2009 TT last year were god awfully slow compared to the ICE bikes and were only capable
of one lap of the circuit (37 mile ) John McGuinness on his 1000cc Honda managed ~127 mile an
hour AVERAGE (top speed OVER 200mile an hour) for 3 laps...Best lecky AGNI X01 ridden by Rob Barber
there averaged ~87 mile an hour top speed ~106 mile an hour...Sorry Mr Dave Luscombe "the dawn of a new era"
is a looooong way off pal...

...Least the lecy will look the part in the pitz

KiM

I'm gonna have to disagree with you on this one Kim.

First, I have to say that is a piece of art that anybody would be proud to park in His/her stable. Not to mention the fact that these early edition electric motorcycle will prolly be worth gobs of money to collectors (30 years from now ??).

Second, you are comparing the best rider to at best a mediocre rider ( considering how hard these are to drive fast cuz they make no noise and have funky torque curves compare to ICE).

Also, I don't think The Isle of Mann is the best platform to compete, something more along the lines of a motard would be a better stage.

And another thing....

Thanks for posting that D, it was worth the wait. Have you seen this bike in person?

[swbluto]

Not bad looking bike at all! ..can't say im a big fan of the motors protruding out the side like that particularly on a
race bike, be a new motor eveytime you drop it...

As nice as it is its still not in the same league as an ICE Sportsbike even... and i bet it cost a shitload more,
the electrics at the 2009 TT last year were god awfully slow compared to the ICE bikes and were only capable
of one lap of the circuit (37 mile ) John McGuinness on his 1000cc Honda managed ~127 mile an
hour AVERAGE (top speed OVER 200mile an hour) for 3 laps...Best lecky AGNI X01 ridden by Rob Barber
there averaged ~87 mile an hour top speed ~106 mile an hour...Sorry Mr Dave Luscombe "the dawn of a new era"
is a looooong way off pal...

...Least the lecy will look the part in the pitz

KiM

I'm gonna have to disagree with you on this one Kim.

First, I have to say that is a piece of art that anybody would be proud to park in His/her stable. Not to mention the fact that these early edition electric motorcycle will prolly be worth gobs of money to collectors (30 years from now ??).

Second, you are comparing the best rider to at best a mediocre rider ( considering how hard these are to drive fast cuz they make no noise and have funky torque curves compare to ICE).

Also, I don't think The Isle of Mann is the best platform to compete, something more along the lines of a motard would be a better stage.

And another thing....

And, truly another thing, you're comparing the first generation of a given propulsion type to an n-th generation of the petrol type. Give it the same amount of time to evolve (How long have gas racing motorcycles been around? Oh yeah, over half a century.), and I'm pretty sure you'll see greater parity if not usurpation. Have you noticed how power and energy densities have been improving, lately?

[AussieJester]

First, I have to say that is a piece of art that anybody would be proud to park in His/her stable.
?

Not everyone... If given the choice i would take a Duke over it hands down no question.
I agree though it is a very nice looking bike...except for the whole motor hanging out the side business..

have you noticed how power and energy densities have been improving lately

Nope, lipos i used in my chopper are same energy density as the lipos i use now and that was 3 years ago...just the price has changed

It is a lovely looking bike definitely, but they are promoting it as a race bike hence i compared it too the ICE equivalent in my above post, they also touted it as a TT bike for 2010 hence i quoted the ICE bikes times from the 2009 TT. One of the people in the video suggested electrics will be beating ICE, hence i suggested it will be along time coming...

I don't know the price but i guarantee it will be expensive and dearer than a 600 supersport which would out perform it hands down and be more fun to ride.

KiM

p.s Etard...FYI:- there was 17mph difference (average speed) between first and 44th place in the Superbike category at the 2009 TT

[Storm]

Why only one motor?

Edit: now I hear it has two?

[etard]

Nice!! I love a disagreement especially in a matter of taste, i actually agree with you here though, it is trying to look like a that KTM superbike (by the way, have you seen the car they built ). I am minimalist at heart and would take a canyon carving Duke or Supermotard any day. But for a full dresser, she looks good. If they are gonna stick the motors out like that, at least give it some carbon fiber bling!! Wait, you don't like it cuz it's got no holes in it! HAHA!!

You are right about the average speed, but again we all know electrics are better at speeds below 100mph, that's why look wants to attain legend status doing a wheelie at this speed. Im sure you have seen clips from above, these guys are going flat out for minutes at a time, it's really an insane race, I would love to go and stand at one of this legendary corners where the rider brushes both knees on rock walls. ( insert bow down smiley)

[MitchJi]

Hi,

http://www.gizmag.com/mavizen-ttx02-electric-motorcycle/13321/

Launched last week in Las Vegas, the 130+ mph, GBP25,000 Mavizen TTX02 is based around a KTM RC8 frame, ships with two Agni motors and boasts a hot-swappable battery and drivetrain architecture.…

The bike's top speed is specced at 130+ mph (depending on gearing) with 70kw peak and 40kw continuous power. The range is 25-50 miles using the 6kWh Circuit pack under track conditions, but this can be stretched to 130 miles "under regular road use" with the 11kWh Snaefell Pack according to Mavizen. There's also a yet to be finalized 3kWh Sprint pack on offer which provides six miles of track use…

The target price complete with a Circuit Pack is £25,000 ($41,000 U.S.)

[Thud]

yes very sexy.

I perfer the duke's carbon swingarms on their GP bikes. But over all I say 2 snaps up.
(till we show up with twin motored brushless wonder bikes!!)
what batery chemistry did they run last year Lifepo4? or straight Lipoly?
Thanks D. I like it.

[deecanio]

Hi All,

you dont know how difficult it's been sitting on the pics Steve sent me months ago pre- launch
i din't post until they had been officially released which is why there are snaps at mavizen before i could show you guys.
I am going to see Steve next week at some point so i'll get the skinny for you whilst im down there - there are many new things to be discussed that may be of even MORE interest to us all
As for the debate always healthy, however i think to compare to gassers at this point is a little premature, any comparisons to something better that is all electric
personally i think the machine is a giant leap forward from even last years TTXGP winner and i'd absolutely love to have it in my garage.
The press release was back in december and i couldn't make it as i had to work all over the dates i had planned to meet Steve at the launch, very dissapointing however i will be going to the TTXGP this year armed with a bucket load of video ability!!! really looking forward to that one!!!!
The bike is TWIN agni, one on each side and there are benefits to the mounting for cooling, the agnis i believe have been toned down since my original pics as they are silver and shiny bling by default.
I'll get more info for you guys when i go to visit Steve, if the bike is there i'll get some pics and vid.
Sorry to the guys that have already seen it, as i say i respected Mavizens launch - glad the guys who hadn't appreciate it's beauty IMHO not to be compared to gassers but to be compared to anything all electric we have seen so far.


Cheers,

D

[liveforphysics]

Not bad looking bike at all! ..can't say im a big fan of the motors protruding out the side like that particularly on a
race bike, be a new motor eveytime you drop it...

As nice as it is its still not in the same league as an ICE Sportsbike even... and i bet it cost a shitload more,
the electrics at the 2009 TT last year were god awfully slow compared to the ICE bikes and were only capable
of one lap of the circuit (37 mile ) John McGuinness on his 1000cc Honda managed ~127 mile an
hour AVERAGE (top speed OVER 200mile an hour) for 3 laps...Best lecky AGNI X01 ridden by Rob Barber
there averaged ~87 mile an hour top speed ~106 mile an hour...Sorry Mr Dave Luscombe "the dawn of a new era"
is a looooong way off pal...

...Least the lecy will look the part in the pitz

KiM

Hey, they managed to beat the record for a 50cc bike from the 1960s! It's a start! Some of the first gasoline racing bikes had to be pushed at the start of the race to get running, and had top speeds in the 40mph range. Now look at them Racing is what electrics so badly needed to bring about some innovation. Have a little patience and some faith, they will come around. I predict 10-15years from now, there will be some electrics running toe-to-toe with at least the 250-600cc kiddy classes.

[liveforphysics]

It's got a 425amp fuse of the main pack, which is 72v nominal. It's 3P22S of BMI 15Ah cells.


At 90% motor, 98% controller, and 97% drivetrain, we're looking at ~26kw at the rear wheel.

400lbs bike + 150lbs rider = 550lbs/26kw = 21.15kw/lbs absolute peak acceleration (verge of fuse blowing acceleration).


My E-bike

74lbs, 100amps @ 100v to each motor.

Compensating for voltage drop, we can call it 88v @ 100 amps to each motor.

At 88% motor, 98% controller, 97% drivetrain, we're looking at ~14.72kw at the rear wheel.

74lbs + 150lbs rider = 224lbs/14.72kw = 15.21kw/lbs absolute peak acceleration.

I wanted to work the numbers because I watched the video's where it takes off, and I thought, hmm... my bicycle sure takes off a lot harder. lol

[liveforphysics]

Using the cell_man cells, and the carbon fiber motor I'm building for the ES DIY motor contest, I will soon be having an E-bicycle which will absolutely defeat this bike in a drag race.

[Storm]

It seems common when electrics are put into vehicles the motors are very undersized compared to the OEM ICE, maybe it's an eonomic thing for most of us or a psycological range/battery extender. Also there's seems no motor/s capable of contending with hipo 1000cc yet, why dont agni or someone build a real big....like OMG too big version of these motors. For example before recumpence used the RC pletty most of us ebikers were fumbling with 200-2000kw motors and some were pushing the X5, but then something opened up and now it seems 2kw is a small build and rightly so. If I were to build an Electric car (not likely)I would want the e/motor to rival the ICE engine considerably, this doesn't mean I would use full power everywhere I go but to have it on tap for when it's needed(for showing off etc)

[liveforphysics]

It seems common when electrics are put into vehicles the motors are very undersized compared to the OEM ICE, maybe it's an eonomic thing for most of us or a psycological range/battery extender. Also there's seems no motor/s capable of contending with hipo 1000cc yet, why dont agni or someone build a real big....like OMG too big version of these motors. For example before recumpence used the RC pletty most of us ebikers were fumbling with 200-2000kw motors and some were pushing the X5, but then something opened up and now it seems 2kw is a small build and rightly so. If I were to build an Electric car (not likely)I would want the e/motor to rival the ICE engine considerably, this doesn't mean I would use full power everywhere I go but to have it on tap for when it's needed(for showing off etc)

It's all about the battery.

We can make extremely powerful light motors. The problem is, we can't carry enough energy to take advantage of the power potential and still complete a full lap around the track.

IMHO- This bike really crippled itself in the choice of battery. Going with 3x 72v 15Ah BMI/LiFeTech battery modules:

257 x 189 x 230mm @ 15.6Kg per module.

This means, 33.5L of battery and 46.8Kg, with 3.54Kwhrs of battery energy.

If they had used something like Cell_man's 20Ah prismatic cells to make the same energy (actually a little more, and much higher power ability), they would need 56 cells, which would be 26.8Kg, and take up 14.7L of space.

Using cell_man cells they could take up less than half the space, and shave off 20kg of weight... which for a bike is like the amount of weight savings you get from going from an all steel frame with aluminum and steel parts to an aluminum frame with all carbon fiber parts...

Or, you could look at it another way, and say if they went with cell_man cells, they could have the same space in the bike dedicated to the battery, and have double the range, and 3+ times the power capability from the battery (for a 6.8Kg weight penalty).


The cell_man option would me much cheaper as well. lol

[Ypedal]

yeah, but i suspect the battery supplier is sponsering the build !

Another big factor here, the R&D budget these guys have to work with is a grain of sand what the big gassers have to play with, time and money are what make or break a race machine .

I'll be powering my Agni Xr200r with Lipo !

[liveforphysics]

yeah, but i suspect the battery supplier is sponsering the build !

Yep, I bet you're right. Getting free batteries would be nice at an infant stage in E-racebike development, but damn! They made a crippling performance/weight/volume sacrifice in exchange for keeping from spending the $2,800 it would take to match the energy in cell_man cells.

[recumpence]

Yes, performance could be far higher expecially for the money they are getting for this thing. Heck, my next bicycle (trike) build has more power at an AUW of 115 pounds and 1/4 the cost........... Still, this thing is a step in the right direction.

What I do not understand is, a Tesla has better performance (accelleration) than most sports cars (other than pure exotics), a good range, actual daily driveability, and is $109,000. I know that is costly. But, this bike is 40% that cost and is no-where near the perfomance of a sport bike at 1/4 the price.

OK, there are the negatives, as for positives;

#1 Freakin GORGEOUS! I mean, HOLY COW! I am used to electric vehicles looking like a designer sneezed on his drawing before submitting it for production. This thing is beautiful!

#2 Every Gen1 is costly and not super fast. That is expected.

#3 This is obviously a super limited production item. As such, it is going to be a little weird in the performance department. (of course, you could buy a Bimota for this price and have performance besides).

#4 This type of thing gets us in the electric realm more exposure (some negative exposure, at the same time, though).

I for one am all for this project. I just cannot wait untill the battery technology drops another 50% in cost. Then elelctric vehicles (heavier than pedal bikes) will be feaseable. Untill then, bicycles are the only vehicles light enough to be truely practical with existing batteries for more than 20 miles.

Matt

[recumpence]

[quote="liveforphysics They made a crippling performance/weight/volume sacrifice in exchange for keeping from spending the $2,800 it would take to match the energy in cell_man cells.[/quote]

Even our Hobby City Lipos would rock in this baby for three grand.............

I still love it, though!

Matt

[fechter]

Hi All,
you dont know how difficult it's been sitting on the pics Steve sent me months ago pre- launch
D

You've been holding out on us!!! It was worth the wait. Nice looking machine.

Say hi to Steve. I wish he would come back.

This year's TTXGP should be interesting.

I'm doing some behind-the-scenes work on this beauty too, but can't divulge yet.

[deecanio]

Aye tis but a select few Richard
I will say hi to Steve for you for sure, we should be meeting up next week at some point to discuss further exciting projects!!!
2010 should see our interest produce something mainstream will lap up in droves!!

D

[Malcolm]

Do the Mavizen bikes really use cylindrical cells? I know the website is selling Lifebatt modules on the components page, but aren't they aimed at DIY builds? I can't really see anyone using those modules on a race bike. They take up too much volume, never mind the weight.

It's a good-looking bike, and it's really good to see it put together by a British team ... with a little help from Mr Fechter, of course

[wookey]

400lbs bike + 150lbs rider = 550lbs/26kw = 21.15kw/lbs absolute peak acceleration (verge of fuse blowing acceleration).
74lbs + 150lbs rider = 224lbs/14.72kw = 15.21kw/lbs absolute peak acceleration.

Erm, I think you mean 21.15 lbs/kW and 15.21lbs/kW, (or 47 W/lb and 65.7 W/lb)