[trikes] Power assist for Anura

[Ian Sims]

Yes, the Anura has 75% of its weight on the two rear drive wheels,
and this is why it is so good on ice. The latest hub motors are what
they call "non-hall sensor" which means they only have a three wire
connection, which makes it easier to have a plug close to the motor,
and makes removal easier. So it would be easy and quick to swap
the powered wheel for a plain wheel.

Regards, Ian

Ian Sims, Director
Greenspeed Pty., Ltd.,
69 Mountain Gate Drive,
Ferntree Gully VIC 3156
AUSTRALIA
Phone +61 3 9758 5541 Fax +61 3 9752 4115
Email ian at greenspeed.com.au
Web www.greenspeed.com.au


----- Original Message ----- 
From: <marneson47 at earthlink.net>
To: "Ian Sims" <ian at greenspeed.com.au>
Cc: <trikes at bikelist.org>
Sent: Tuesday, June 16, 2009 5:58 AM
Subject: Re: [trikes] Power assist for Anura


This might be the ideal snow and ice trike.  I tried a recumbent 2-wheeler with a hub motor in the front wheel 
and regular pedal power in the rear, and it was great on ice.  It climbed up an icy hill with that all-wheel 
drive.  An Anura with both rear wheels powered (which is terrific on icy hills anyway) and then with a hub 
motor in front ought to be unstoppable.

Would it be possible to have a front wheel built for an Anura with the hub motor, but to switch out?  I could 
imagine putting it on (with a studded tyre) for winter use, and taking it off for nice-weather riding.

Mary

-----Original Message-----
>From: Ian Sims <ian at greenspeed.com.au>
>Sent: Jun 14, 2009 10:23 PM
>To: Chris Heffel <heffel at gmail.com>
>Cc: trikes at bikelist.org
>Subject: Re: [trikes] Power assist for Anura
>
>No problem fitting a hub motor to the front.
>
>See. www.greenspeed.com.au/Anura.power.side.1200.jpg
>
>You just need to choose a front motor with a disc brake mount.
>
>This is a Bafang motor, see :-
>
>www.greenspeed.com.au/Anura.front.1200.jpg
>
>I did not encounter any traction problems, and AFAIK the customer
>has been quite happy with the conversion.
>
>Regards, Ian
>
>Ian Sims, Director
>Greenspeed Pty., Ltd.,
>69 Mountain Gate Drive,
>Ferntree Gully VIC 3156
>AUSTRALIA
>Phone +61 3 9758 5541 Fax +61 3 9752 4115
>Email ian at greenspeed.com.au
>Web www.greenspeed.com.au
>
>
>----- Original Message ----- 
>From: "Chris Heffel" <heffel at gmail.com>
>To: "Ian Sims" <ian at greenspeed.com.au>
>Cc: <trikes at bikelist.org>
>Sent: Monday, June 15, 2009 12:27 PM
>Subject: Re: [trikes] DELTA VS TADPOLE for speed
>
>
>Don't leave us hanging Ian.   Which is it, the Orange or the Apple?
>
>My GTR is orange, please say orange!
>
>Has anyone tried an Anura with a front hub motor yet?  Can it be done
>with 16" wheels?  I would assume the Anura might do better than the Kett
>with the rider position being further forward (on slippery roads anyway).
>
>
>Ian Sims wrote:
>> I have designed and ridden both, plus I've ridden fair number of the
>> different designs and makes.
>>
>> I think it is really like asking which is faster, the orange or the apple.
>>
>> There are a number of things which govern the speed of a trike,
>> roughly in this order.
>>
>> 1. Fitness of the rider.
>> 2. Aerodynamics (drag co-efficient x frontal area)
>> 3. Weight
>> 4. Rolling resistance (mainly tyre design and performance)
>> 5. Ease of control.
>> 6. Rider comfort.
>> 7. Mechanical efficiency.
>>
>> Of course it will depend on what order of magnitude we are looking at
>> in the range of variables, but this is an indication of the range of each
>> variable, and its effect on performance that I have noticed....
>>
>> The main point is that the layout is not the main feature of the trike.
>>
>> Regards, Ian
>>
>> Ian Sims, Director
>> Greenspeed Pty., Ltd.,
>> 69 Mountain Gate Drive,
>> Ferntree Gully VIC 3156
>> AUSTRALIA
>> Phone +61 3 9758 5541 Fax +61 3 9752 4115
>> Email ian at greenspeed.com.au
>> Web www.greenspeed.com.au
>>
>>
>>
>>
>> Message: 1
>> Date: Fri, 12 Jun 2009 12:29:45 -0400
>> From: <mgta4 at aol.com>
>> Subject: [trikes] DELTA VS TADPOLE for speed
>> To: <trikes at bikelist.org>
>> Message-ID: <8CBB99221CBFD06-1650-310 at WEBMAIL-DZ09.sysops.aol.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Does anyone have any experience riding both trikes? Is there a difference in speed that could be noticed??
>> Would one be much faster for touring then the other??
>>
>> Thanks Fran
>>
>>
>>
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