my 72V 5305 creation

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nuvola   10 mW

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my 72V 5305 creation

Post by nuvola » Jul 11 2010 5:35pm

Here is my ebike:
http://www.jobike.it/Public/data/nuvola ... o%201.jpeg
some technical details:
72V 15ah lifepo4 battery with 3c prismatic cell (10kg)
72V 40A controller

tyre:
front 28x1.75
Rear 26x.2.35

Front brake juicy 5 with 180mm shimano XTR disk
(it should be substituted by a Formula the one 2010 220mm front brake but I need to change front fork before)

C.A.

sigma computer

my weight 100kg
top speed 59km/h without pedaling,amazing acceleration
I'm very very happy
:)
bike 1) 9C Rh205 28" Rear, controller 48V 27A with 51V 60ah battery, watt's up
bike 2) 5305 26" Rear, controller 72V 40A with 72V 15ah battery, CA

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beast775   100 kW

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Re: my 72V 5305 creation

Post by beast775 » Jul 11 2010 6:05pm

good lookin bike,i know i always like a bigger tire up front,dont know why but i do.your batts look like a big sla slab.what type of covering is that?nothin better than the sound of a 5305.did you incorporate torque arms?
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I spent all my money on bicycles women and beer the rest i just wasted.

nuvola   10 mW

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Re: my 72V 5305 creation

Post by nuvola » Jul 11 2010 7:17pm

what type of covering is that?
If I remember it was made by chinabattery.com
did you incorporate torque arms?
still to do.
bike 1) 9C Rh205 28" Rear, controller 48V 27A with 51V 60ah battery, watt's up
bike 2) 5305 26" Rear, controller 72V 40A with 72V 15ah battery, CA

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knoxie   10 MW

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Re: my 72V 5305 creation

Post by knoxie » Jul 12 2010 1:32pm

:D

Very nice..thanks for sharing oh yes u must fit an arm on that before you use it again at that voltage esp.

I made my own torque arm I can mail you the drawing if you like?

http://endless-sphere.com/forums/viewto ... torque+arm

Knoxie
Electric KMX 72V Lipo, USPD drive unit. BMX 72V, Puma BMC,
Raleigh 26 inch MTB Puma 50V Turnigy 25C Lipo 10AH, Trek MTB, X5 48V NIMH. Electric BMX
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toft   10 W

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Re: my 72V 5305 creation

Post by toft » Jul 12 2010 1:51pm

Look,s good, maybe you should try to put your battery pak inside the main frame triangle...? better ballance etc... the question is how wide is the battery;).
Regards toft
PS. Is this shwalbe tire confortable? Maybe in new project il tray this tires...

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ambroseliao   100 kW

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Re: my 72V 5305 creation

Post by ambroseliao » Jul 12 2010 3:55pm

Nice looking bike.

What are you using for rear brakes? I don't see any!

Ambrose
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Remember LiFEPo4 HVC is 3.65V and LVC is 2.7V

nuvola   10 mW

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Re: my 72V 5305 creation

Post by nuvola » Jul 13 2010 5:29am

Battery pack is too big to fit as is inside triangle, but I've no problems at all where it is now.
Balance is perfect just now.

There's no Rear brake!
I'd like to use and idraulic brake but my old 5305 hasn't way to get connected to a disk, I'm still studing an easy solution.
any proposal?

big tyre (apple) is a must to do, bike now it's very confortable.
If possibile I will use bigger tyre, but the biggest I found was just mine (26x2.35) (bigger aren't for road use)
bike 1) 9C Rh205 28" Rear, controller 48V 27A with 51V 60ah battery, watt's up
bike 2) 5305 26" Rear, controller 72V 40A with 72V 15ah battery, CA

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Kepler   1 GW

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Re: my 72V 5305 creation

Post by Kepler » Jul 13 2010 7:17am

Nice bike. Good work. Be careful you dont do a major tank slapper with that weight so high rear biased. Especially at the sort of speed that thing does.

Couldnt see any torque arms on the back. I presume they are there.
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nuvola   10 mW

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Re: my 72V 5305 creation

Post by nuvola » Jul 13 2010 5:29pm

I have no rear torque arms at the moment.
ebikes.ca seems to have discontinued their rear version.
any other website where to buy it?
bike 1) 9C Rh205 28" Rear, controller 48V 27A with 51V 60ah battery, watt's up
bike 2) 5305 26" Rear, controller 72V 40A with 72V 15ah battery, CA

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Kepler   1 GW

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Re: my 72V 5305 creation

Post by Kepler » Jul 13 2010 8:40pm

I get them from here http://www.e-mtb.com.au/electric-bike-p ... 65_69.html. Its not actually listed but I think he does carry them.
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nuvola   10 mW

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Re: my 72V 5305 creation

Post by nuvola » Jul 17 2010 2:16pm

some updates:
I'd a puncture in my apple, so I decided to change my tyres!
So I've bought 2 maxxis hookworm 26x2.5

Next monday, I will go to a bike shop to buy a Marzocchi Fork, so I could finally mount my formula the one 2010 220mm front brake!
And the ebike will be quite finished... :mrgreen: (i just need to find a solution for a rear brake)
bike 1) 9C Rh205 28" Rear, controller 48V 27A with 51V 60ah battery, watt's up
bike 2) 5305 26" Rear, controller 72V 40A with 72V 15ah battery, CA

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Kepler   1 GW

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Re: my 72V 5305 creation

Post by Kepler » Jul 17 2010 3:32pm

Try and come up with some way to get the batteries forward and lower. A rear brake and a better COG will really finish it off then. And dont forget the torque arms. That sort of power will rip your dropout to pieces in no time and frankly is just plain dangerous. Do a search on making your own. There not too hard to make.
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nuvola   10 mW

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Re: my 72V 5305 creation

Post by nuvola » Jul 17 2010 7:53pm

I've found the perfect toruqe arm from ampebikes, I will just order it when I will come back from holidays.
For rear brake I've to understand if I can just change the left cover with the new threaded 5305 cover.
I'm speaking about buying this: Image

my 5305 is old and doesn't have threaded cover.

batteries is perfect just where it is.

what is a COG?
bike 1) 9C Rh205 28" Rear, controller 48V 27A with 51V 60ah battery, watt's up
bike 2) 5305 26" Rear, controller 72V 40A with 72V 15ah battery, CA

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Kepler   1 GW

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Re: my 72V 5305 creation

Post by Kepler » Jul 17 2010 8:08pm

nuvola wrote: batteries is perfect just where it is.

what is a COG?
There is a good reason why people go to so much trouble to install the batteries further forward but its what you are happy with at the end of the day :)

COG "Centre of Gravity" :wink:
Current Rides

Lightest true ebike on the planet: ON ROAD viewtopic.php?f=6&t=74269
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nuvola   10 mW

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Re: my 72V 5305 creation

Post by nuvola » Jul 20 2010 4:50pm

my new buy:
Marzocchi Marathon SL 80mm
finally I could mount my Formula 220mm front break.

For rear Brake, I'm still looking for a good and easy solution.

ps. I'v mounted 11-34 gear 8)
bike 1) 9C Rh205 28" Rear, controller 48V 27A with 51V 60ah battery, watt's up
bike 2) 5305 26" Rear, controller 72V 40A with 72V 15ah battery, CA

nuvola   10 mW

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Re: my 72V 5305 creation

Post by nuvola » Sep 14 2010 4:42pm

here's my gallery:
http://picasaweb.google.com/nuvolamax/superbaics#

note the new 220mm front disk!
the battery position is perfect because due to very big powerful front brake it helps to don't let the rear wheel going up.
Now I'm working on a rear ebrake.
bike 1) 9C Rh205 28" Rear, controller 48V 27A with 51V 60ah battery, watt's up
bike 2) 5305 26" Rear, controller 72V 40A with 72V 15ah battery, CA

icecube57   1 GW

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Re: my 72V 5305 creation

Post by icecube57 » Sep 14 2010 5:46pm

I got an amped bikes torque arm holding my x5303 beast in. The Tidal Force frame has the perfect notch for it. Ive been playing hard and using regen with no issue.. It hasnt wiggle nor has axle bolt moved. All I can say is kudos to the torque arm and good luck with your build.

chroot   100 kW

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Re: my 72V 5305 creation

Post by chroot » Sep 14 2010 8:10pm

Your bike looks so finest and nice one. I have a question, You said you are using a 72v batteries and only run 36mph (59km/h) and Aren't the 72v supposed push your 5305 lot fast more than 40mph (65km/h).
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icecube57   1 GW

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Re: my 72V 5305 creation

Post by icecube57 » Sep 14 2010 9:42pm

36... sounds about right. A 5304 would peak around the low 40s depending on rider.

nuvola   10 mW

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Re: my 72V 5305 creation

Post by nuvola » Sep 15 2010 6:49pm

I will check top speed this saturday, with big apple 2.3 was 59km/h, now I want to see difference with hookwoorm 2.5
I just have to understand how to set tyre size on CA!
Anyway my weight it's about 105kg plus 15kg of lifepo4, not a light one and I believe that big tyres let your max speed going down due to friction with asphalt.
bike 1) 9C Rh205 28" Rear, controller 48V 27A with 51V 60ah battery, watt's up
bike 2) 5305 26" Rear, controller 72V 40A with 72V 15ah battery, CA

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