[ausev] thoughts on tires

[Ian Ward]

Another thing to consider is that this is a heavy truck for its size and
anything narrower than the 225s, you're risking stability and safety. I
would recommend the 235s over either the 215s or 225s.

- ian

On Thu, Jan 22, 2009 at 9:23 AM, <jefoy at mindspring.com> wrote:

> The actual difference based on "ideal" circumference is 2%, for any
> indicated speed your actual is 2% higher assuming the speedometer is
> accurate (probably not much better than +/- 2% anyway). As Marc said, just
> do it..
>
>
> -----Original Message-----
> From: Marc Kohler
> Sent: Jan 22, 2009 8:52 AM
> To: 'AustinEV News Announcements and General Discussion'
> Subject: Re: [ausev] thoughts on tires
>
>  Mount the new set and move on down the road.  Your speedometer is
> probably 1/65th off anyway from absolute true so don't let that bother
> you.
>
> As for increased friction or footprint, there are many other aspects that
> effect your efficiency much more (driving habits, terrain, weather) that
> will make the difference unnoticeable.
>
> I say slap them on and get driving to get that EV grin back as soon as
> possible.
>
> You can always change them out later if you really notice a difference when
> you have more change in your pocket.
>
> My two cents.
>
> Marc Kohler
>
>
>
> *From:* ausev-bounces at austinev.org [mailto:ausev-bounces at austinev.org] *On
> Behalf Of *chris clark
> *Sent:* Thursday, January 22, 2009 8:39 AM
> *To:* AustinEV News Announcements and General Discussion
> *Subject:* [ausev] thoughts on tires
>
>
>
> Now that Mark Witt's old Ranger EV is finally finished, I have to replace
> the tires.  Unfortunately, I've spent all my money buying and working on
> this thing and now, money for tires is pretty limited.  If I could afford
> it, I'd just go by a new set of 225/70/15's like the ones it came with.
> That's pushing $500, though, to get a set of good quality tires.  So here's
> my question.  I have a new set of 235/70/15's that would cost me very little
> to have mounted and balanced, but the tires are roughly 1/2" taller and
> almost 1/2" wider, creating a little larger 'footprint' and distorting the
> mileage/range computations slightly.  I've been told by Discount tire that
> with the larger 235's, a speedometer reading of 65mph would actually be 66
> mph.  So the calculations would be effected about 1/65 and there would be a
> small increase in friction because of the larger footprint, at least this
> makes sense to me instinctively.  And this begs the question "would one size
> smaller tire decrease friction by having a smaller footprint?"  If the
> answer is yes, there are many 215/70/15's or even 215/75/15's available at
> salvage yards.  For some reason, though, 235/70/15's are very difficult to
> find used.  Enough of my ramblings.  Any thoughts?
>
>  ----- Original Message -----
>
> *From:* Marc David Kohler <mkohler at austin.rr.com>
>
> *To:* 'AustinEV News Announcements and General Discussion'<ausev at austinev.org>
>
> *Sent:* Wednesday, January 21, 2009 7:24 PM
>
> *Subject:* Re: [ausev] ReinCarNation
>
>
>
> Welcome Gary.
>
> We look forward to meeting you at the next AustinEV.org gathering.
>
> Marc Kohler
>
>
>  ------------------------------
>
> *From:* ausev-bounces at austinev.org [mailto:ausev-bounces at austinev.org] *On
> Behalf Of *Gary Ellis
> *Sent:* Wednesday, January 21, 2009 7:15 PM
> *To:* ausev at austinev.org
> *Subject:* [ausev] ReinCarNation
>
>
>
> Hi,
>
> My name is Gary Ellis and I just subscribed to the AustinEV mailing list as
> I'm starting an EV conversion company, here in Austin, and wanted to
> introduce myself.  Our company is called ReinCarNation -- please check-out
> our web-site, when you have a chance.
> http://www.rcnmotors.com
>
> I'm very interested in meeting many of you at your next meeting, seeing
> your EVs and showing you my electric Miata.  I have heard about Revolt
> Custom Electric, but have yet to contact them to see what their experience
> has been like.
>
> Thanks and any feedback is welcome.
>
> Gary
> ReinCarNation
> RCN Motors, LLC
> http://www.rcnmotors.com
>  ------------------------------
>
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