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Old 05-20-2009, 02:58 PM   #1
potatoho OP
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My new Stealth Electric Bike

Back in November 2008 I ordered a Stealth Electric Bike from Australia, from here http://www.stealthelectricbikes.com

They are custom built with a bit of a lead time. I decided to wait for a White Brothers fork upgrade (groove 200) and also some motor improvements. This pushed my order out a bit, and I received the bike in May 2009.

The bike uses an electric hub motor in the rear wheel. This type of motor is often used in retro-fit kits, in the smaller power varieties. This particular motor is 3000 Watts, which gives it a feel of about 6HP and makes it trail worthy.

The large-size battery in mine is 72V @ 20Ah. This gives me decent range. In fact, I have ridden it up to 29 miles of 50/50 street and sandy trail and it showed 18Ah of charge used. I have not yet run it dry to determine the full range.

Hub motors are criticized for being very heavy. I love them because they are low maintenance and nearly silent when running. To balance properly, the stealth bike has the battery mounted within the frame.

The chain and sprockets are used solely for human power. 9 gears are provided using a suntour v-boxx crank. First gear is very low, and 9th is very tall. A great mixture of gears, selectable from a twist grip. You can either coast via motor power alone, or get some exercise by pedalling along. And if you run out of charge, you can still make it back home via pedal power.


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Old 05-20-2009, 03:04 PM   #2
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Some more information:


My total cost in USD: $5864 base, $932 (fork upgrade), $490 (customs, door-to-door delivery). $7286 soup to nuts.

I'm the only one in the whole U.S.A. that has one Well, right now anyways.
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Old 05-20-2009, 03:08 PM   #3
P B G
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Shhhhhssss 9K for a bike? I'd buy a motorcycle and carry my bike to trails.

Does look fun.
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Old 05-20-2009, 03:08 PM   #4
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Seems like a lot of weight to be pushing around under human power. It would be very tempting to just flip the switch and go all the time.

What percentage of the time do you spend under human power vs electric?

Now be honest ...
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Old 05-20-2009, 03:08 PM   #5
Mr Kawasaki
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Quote:
Originally Posted by potatoho
Some more information:


My total cost in USD: $5864 base, $932 (fork upgrade), $490 (customs, door-to-door delivery). $7286 soup to nuts.

I'm the only one in the whole U.S.A. that has one Well, right now anyways.
You paid $7300 for a mountain bike with a wheelchair motor on it?


What the fuck is it used for?
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Old 05-20-2009, 03:13 PM   #6
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Quote:
Originally Posted by FlowBee
Seems like a lot of weight to be pushing around under human power. It would be very tempting to just flip the switch and go all the time.

What percentage of the time do you spend under human power vs electric?

Now be honest ...
I try to pedal all the time, for exercise. That's primarily why I bought the bike. I don't enjoy riding a bike, but this is pretty fun being that I can go really far.

The motor winding on mine tops out at about 40 mph. You can get it wound for higher speed if you want, but then you lose some torque.
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Old 05-20-2009, 03:14 PM   #7
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They'd be alot cooler if mountain bike trails didn't object to motorized vehicles. Switch off for the downs, on for the ups.

I suppose what people don't see can't hurt them huh.
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Old 05-20-2009, 03:16 PM   #8
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Quote:
Originally Posted by Mr Kawasaki
You paid $7300 for a mountain bike with a wheelchair motor on it?


What the fuck is it used for?
So far, I'm using it for dual sport, but I tend to ride it more sneakily than a motorbike. I ride on sidewalks & stuff. It's not so great in sand, but I can hold about 25 mph. Regular trails about 35 mph. Street I top out at 40 mph.
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Old 05-20-2009, 03:16 PM   #9
madjimbo
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Stealth indeed! I'd never guess there was $7000 in that picture!
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Old 05-20-2009, 03:20 PM   #10
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Quote:
Originally Posted by P B G
They'd be alot cooler if mountain bike trails didn't object to motorized vehicles. Switch off for the downs, on for the ups.

I suppose what people don't see can't hurt them huh.
It doesn't have a super amount of power, not enough to make an imprint. I have backtracked my path and had a hard time finding it.

The bike is pretty darned heavy, IIRC around 100lb, so the motor is a bit more than luxury, it is necessary if you want to manuever.
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Old 05-20-2009, 03:20 PM   #11
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Originally Posted by madjimbo
Stealth indeed! I'd never guess there was $7000 in that picture!
Check out my seat! I added that from wal-mart for $20.
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Old 05-20-2009, 03:24 PM   #12
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It didn't come with a seat?

I now have newfound respect for Aussie bicyclists!
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Old 05-20-2009, 03:28 PM   #13
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It comes with a vinyl covered pole LOL. Actually I have several seats for my sensitive butt.

Here's a peak inside. The 72V 20Ah LiPo batteries completely fill it.

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Old 05-20-2009, 04:13 PM   #14
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7k I'd make them throw in the seat.

I'm all about the swag.

Its not about the imprint its about other bicyclists not liking cheaters.
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Old 05-20-2009, 04:20 PM   #15
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Why does this bike look different than the electric bike you posted in another thread? Did you buy two?
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