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soyachips replied to the thread Soyachips’ Electric FZR250.
" Also the motor arrived today and nervously checked to make sure the custom axle fits into the swingarm and thankfully it does!

Next steps are to install the brake and work out an adapter plate to attach the bike’s original brake rotor to the motor. Also need to make up some blocks to hold the axle in the swingarm and some kind of bracket to hold all of this so I can do some bench testing.

http://forums.aeva.asn.au/download/file.php?id=1139

http://forums.aeva.asn.au/download/file.php?id=1138 "

19 Hours Ago

soyachips replied to the thread Soyachips’ Electric FZR250.
" I ran some numbers for different battery options and based range on 60Wh/km. Let me know if anything looks horribly wrong. The cost I’ve used for the Leaf batteries is probably way too low as I can’t even find any in Australia! NOTE the costs are all in AUD

http://forums.aeva.asn.au/download/file.php?id=1141 "

19 Hours Ago

travel created the thread امکانات هتل اونیو دبی.
" هتل AVENUE دبی
یکی از هتل های چهار ستاره و لوکس در دبی هتل Avenue (اونیو) نام دارد این هتل زیبا در قلب شهر واقع شده است و با 133 با واحد اقامتی با دکوراسیونی مدرن و مجهز به امکانات رفاهی آماده ی خدمت رسانی به میهمانان می باشند. کارکنان هتل اونیو به زبان های انگلیسی، فیلیپینی، عربی و فارسی مسلط هستند. رستوران منتهن در لابی هتل با سرو انواع غذاهای بین المللی و رستوران استیک هاوس واقع در طبقه ی همکف هتل انواع غذاهای دریایی و کبابی را برای گردشگران تور لحظه آخری دبی سرو می کند.

امکانات هتل AVENUE دبی
پذیرش 24 ساعته
دستگاه واکس کفش
خدمات خانه داری
خدمات گردشگری
فروشگاه سوغاتی
اجاره اتومبیل
اتاق چمدان
خدمات فکس، فتوکپی و پرینت
گشت درون شهری
بالکن
صندوق امانات
اتاق های هتل avenue مجهز به تلویزیون LCD ، دمپایی، حمام، ماهواره، مینی بار، چای ساز، یخچال، میز کار، قهوه ساز، سشوار، صبحانه در اتاق، سوئیت های مجهز به کولر گازی و... می باشند.
ورود حیوانات خانگی به داخل هتل ممنوع می باشد.

موقعیت مکانی هتل AVENUE دبی
هتل اونیو دبی را می توان جزء یکی از بهترین هتل های دبی دانست این هتل علاوه بر خدمات مناسبی که به گردشگران تور امارات ارائه می دهد در فاصله ی نزدیکی نسبت به مراکز خرید و ایستگاه مترو واقع شده است.

این هتل در نزدیکی بازار ادویه، بازار طلا و هتل های معروفی مانند skyline deluxe و mayfair واقع شده است.

فاصله هتل AVENUE دبی تا مکان های مهم شهر
فاصله هتل اونیو دبی تا فرودگاه بین المللی دبی 3.9 کیلومتر
فاصله هتل avenue دبی تا مرکز خرید سیتی سنتر دبی 1.4 کیلومتر
فاصله هتل تا مرکز خرید برج ای دوقلو 1.8 کیلومتر
فاصله هتل avenue دبی تا مرکز تجارت جهانی دبی در حدود 10 دقیقه با خودرو
منبع: تور ارزان قیمت دبی "

22 Hours Ago

Stevo replied to the thread Soyachips’ Electric FZR250.
" Its a good chassis choice. Single front brake keeps the weight down and the steel frame makes it easier to weld/make mods. I hope you found a great deal on it.
The unsprung mass of hub motor is what made me decide a different set up. But if suspension is set up right, it should work fine, giving lots of space for batteries.
I would like to see an e-version 2 wheel drive set-up using hydraulic pumps ala Ohlins http://www.motorcycle-usa.com/2009/0...ns-2wd-review/, but 2 hub motors would work. "

1 Day Ago

soyachips replied to the thread Soyachips’ Electric FZR250.
"
Quote Originally Posted by Stevo View Post
What does the new rear wheel weigh in at compared to the original?
I'll be curious to see how well you can make this bike handle with the added battery weight also.
The wheel is 20kg! No idea what a normal wheel weighs and I haven’t got the donor bike yet but there will be quite a difference. I’m a bit concerned about that too. In deciding what kind of setup to go with I thought the simplicity of the hub motor and leaving plenty of space for everything else would make for a nice conversion and hopefully the handling will still be good. Will just have to wait and see but I’ll need an experienced rider who’s game enough to ride my bike to see if it’s any good as I’ve only just started riding so I won’t have much to compare it to "

1 Day Ago

Hugues replied to the thread What are my options for new batteries in 2019 ?.
"
Quote Originally Posted by Stevo View Post
What are your plans for the tired pack? I was thinking of playing with some solar panels to try and build a portable solar charger with my old leaf cells. They still have some useful life left in them. I hate to waste them for recycling just yet.
I would surely try to sell them and post here in the forum. "

2 Days Ago

Stevo replied to the thread What are my options for new batteries in 2019 ?.
" What are your plans for the tired pack? I was thinking of playing with some solar panels to try and build a portable solar charger with my old leaf cells. They still have some useful life left in them. I hate to waste them for recycling just yet. "

2 Days Ago

Stevo replied to the thread Soyachips’ Electric FZR250.
" What does the new rear wheel weigh in at compared to the original? I would consider rebuilding the shock with a stiffer spring and maybe a gold valve, but after search I found that the OEM rear shock is not rebuildable http://www.racetech.com/ProductSearc...FZR250/1986-88
I'll be curious to see how well you can make this bike handle with the added battery weight also. "

2 Days Ago

Hugues replied to the thread What are my options for new batteries in 2019 ?.
" well good to read that the pack energy is higher but the size is mostly the same.
Looking forward to seeing them on the market.
thanks "

2 Days Ago

Warren replied to the thread What are my options for new batteries in 2019 ?.
" Not much info yet. They have apparently started selling them in Europe already. None in the US yet. There are 288 cells, 96s,3p. I suspect the 3 parallel cells may be welded together at the tabs.

https://insideevs.com/news/342009/he...battery-video/ "

2 Days Ago

Hugues replied to the thread What are my options for new batteries in 2019 ?.
" Thanks Warren, these new Leaf cells could be an option. Any specs somewhere so we can see energy and power density versus Leaf Gen 1 ? I like the way they built them. "

3 Days Ago

Warren replied to the thread What are my options for new batteries in 2019 ?.
" Hughes,

I would definitely not buy any Gen 1 modules. I have seven Gen 2?-Gen 3? modules from a 2015 Leaf in my cargo bike. They had low mileage on them when I got them in July of 2015. I pulled 53 Ah, out of them on my first long ride in August that year. After 22233 miles, and 7728 Ah total, I was able to pull 42 Ah out of them on a ride this week. The first two years I never thought twice doing 150 mile rides. Now I have to watch my fooling around to make 125 miles.

http://www.evalbum.com/5173

I will probably hold out for another year, at least. I hope to get some of the NMC cells from the new 62 kWh Leaf. They appear to be about same physical size, but packed as individual cells.

https://cdn.motor1.com/images/mgl/PY...tery-video.jpg "

3 Days Ago

Hugues created the thread What are my options for new batteries in 2019 ?.
" Hi guys,

Been a while since my last visit/post.

I'm still very happy with my build (pics here: https://www.facebook.com/zvexx.motorbike/).

I'm running on 26 Leaf cells, first gen bought in September 2014, they were supposed to be new. Been riding since spring 2015 with them, never had any problems. The 26 cells are paired by 2, then the 13 pairs are in series. I can pull 600 amps peak without too much strain.

Now, after 4 years, my range has reduced somehow, not catastrophic, but there are days I would like to ride longer and pull hard on pack.

So I'm thinking about installing new batteries next winter, starting in October.

What are my options in 2019 ?

I attach a picture showing how my pack is built, with dimensions.
Attachment 8190

The least amount of work for me would be to buy new Leaf cells and just swap them. I saw some here (and they seem to ship abroad, I live in Switzerland):
https://greentecauto.com/hybrid-batt...ry-module-7-6v

But if these are not new, i might end up with not so much more range than currently.

I would be ready to redesign the pack if i could get a significant increase in range (and not loose on peak power, i need to pull 600 amps for a second or two).

Would this Tesla module make any sense ?:
https://greentecauto.com/hybrid-batt...-battery-cells

At 25 V, I would need 4 to reach my current voltage of around 100 volts. That would be 21 kWh, that would be awesome, compared to my 13kWh when my Leaf pack was new. They don't rate max Amps of that module, I guess they can handle 600 amps for a second or two ?

Any other options ? "

3 Days Ago

soyachips replied to the thread Soyachips’ Electric FZR250.
" This is the donor bike I just bought. The previous owner put a lot of TLC into it so it looks like it’s in really good condition. As mentioned I selected this bike because of the size of the rear rotor :lol: but apparently it’s a really good bike and one of the better 250’s from that era.

https://forums.aeva.asn.au/download/file.php?id=1125

https://forums.aeva.asn.au/download/file.php?id=1126 "

4 Days Ago

soyachips replied to the thread Soyachips’ Electric FZR250.
" Because the axle is built into the motor and needs to be held firm while the motor spins, there will be a lot of torque where the axle passes through the swingarm. To make this stronger I’m going to use solid blocks of aluminium? inside the swingarm. The tolerances need to be quite tight as there are acceleration and regen torque forces that need to be counteracted.

https://www.aeva.asn.au/forums/downl...le.php?id=1121 "

4 Days Ago

soyachips replied to the thread Soyachips’ Electric FZR250.
" Sorry the images above are huge and having trouble working out how to resize them, any ideas? Weird but when they're bigger it's harder to see what's going on! "

4 Days Ago

soyachips replied to the thread Soyachips’ Electric FZR250.
" I also tested where the rear rotor would end up relative to the existing brake calliper and mounting bracket setup. In the prototype below everything looked like it was going to line up but then I realised the wheel was a bit off centre! So after fixing that, I will now have to use an adapter plate between the motor and the brake rotor to line everything up ... which means I wasn’t limited to using a bike with the size of brake rotor that comes with the motor in the first place!

http://forums.aeva.asn.au/download/file.php?id=1118

http://forums.aeva.asn.au/download/file.php?id=1119

http://forums.aeva.asn.au/download/file.php?id=1120 "

4 Days Ago

soyachips replied to the thread Soyachips’ Electric FZR250.
" I originally thought about doing an electric cafe racer motorbike as there’s something appealing about the way they strip everything back to just the essentials and expose the way it all works but I struggled with how to make the batteries look good. In general, EV batteries don’t look that good so I then changed tack and started looking a bikes with fairings so I could hide them! I’m also keen to use a hub motor to simplify the conversion and leave plenty of space for everything else. The other thing I am trying to do is make this as easy as possible to get an engineer’s certificate for the conversion. I spoke to a few engineers about the project and a common theme was don’t touch the brake system otherwise you’ll need to do brake testing which could add another $3,000

I had read good things about hub motors from QS Motor and they have a pretty extensive range of options. The bad thing was the hole pattern for mounting the brake rotor seemed non-standard so I thought I’d have to use the rotor that comes with the motor which is 220mm. So some more research to find bikes that use that size rotor on the rear and fairings to hide the batteries. The other thing was using a frame that has a cradle under the engine so when I take the the engine out it’s still structurally ok. Most new bikes seem to use the engine as part of the structure so that ruled out a whole lot of newer bikes. This really narrowed down the options so I finally settled on a late 80’s Yamaha FZR250 as my donor bike and proceeded to buy a swingarm and rear brake bits from a wrecker to do some prototyping.

Below are some photos of 3D printed custom axles to get everything fitting and the wheel centred and modifying the slots in the swingarm where the axle normally goes through into dropouts like on a push bike so I can get the motor in. On motorbikes the axle gets inserted through the swingarm into the wheel but on the QS hub motors the axle is fixed in the wheel.

http://forums.aeva.asn.au/download/file.php?id=1115

http://forums.aeva.asn.au/download/file.php?id=1116

http://forums.aeva.asn.au/download/file.php?id=1117 "

4 Days Ago

Alex_J replied to the thread Greetings from Salt Lake City UT.
" Ooo I like the mono-shock conversion on that build. Thanks for the tip! "

4 Days Ago