Subject: [TR] Summary of feedback re: donut tire for TR3A

From: Dave MacKay <[email-masked]>
Date: Mon, 23 Nov 2020 10:47:17 -0500

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Hello:

Last week, I asked about using a smaller spare tire for my TR3A. I can
barely force my 165/80R15 spare in, and was wondering about using a modern
=E2=80=9Cdonut=E2=80=9D(space saver) spare. I received feedback and suggest=
ions from a
number of list members. I=E2=80=99ll summarize the responses here, in case =
it might
be useful for others.

Although Triumph used a common bolt pattern --- 4 x 4.5" (114.3mm) --- its
rims had an uncommon offset (near zero). Modern cars tend to have lots of
positive offset. Because of the difference in offset, many replacement rims
will foul the front brake caliper. That means that the replacement rim
could only be used on the back; a flat on a front tire would require
putting the spare on the rear and moving the rear wheel to the front. The
alternative would be to keep a spacer with the spare so that it could be
used on the front if needed.

Bob Danielson=E2=80=99s web site deals with the same issue for TR6s:
http://tr6.danielsonfamily.org/SpaceSaverSpare.htm  Bob uses a T125x70D15
 donut that came from a 1990 - 1997 Honda Accord Wagon. Bob cautioned that
he needed a =C2=BC=E2=80=9D spacer and different lug nuts. Apparently the s=
ame size
wheels were used on:

   - Honda: Accord EX, LX, Wagon 90-97; Accord 98 - 02, Prelude 92 - 96; EV
   Mini-van 97-on
   - Infiniti M30 90 =E2=80=93 92
   - Nissan: Altima 93-01, Maxima 85-88, 200SX & Turbo 84-88; 240SX 89-96
   - Acura: Legend 86-90; TL 2.5 95-on; Vigor 91-93
   - Volvo: 40 series 98-03

The recommendation that I found most appealing was simply to use a use a
smaller tire on standard TR rims. The contributor wasn=E2=80=99t sure, but =
thought
he was using a 145/65R15 tire.

I was cautioned that an odd-sized spare should not be used any longer than
absolutely necessary. Running an odd-sized wheel on the rear will stress
the differential; running an odd-sized wheel on the front will affect
steering and braking.

Regards,

Dave MacKay

1960 TR3A s/n 68639L

near Toronto, Canada

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--></style></head><body lang=3D"EN-CA" link=3D"#0563C1" vlink=3D"#954F72" s=
tyle=3D"word-wrap:break-word"><div class=3D"WordSection1"><p class=3D"MsoNo=
rmal">Hello:</p><p class=3D"MsoNormal">=C2=A0</p><p class=3D"MsoNormal">Las=
t week, I asked about using a smaller spare tire for my TR3A. I can barely =
force my 165/80R15 spare in, and was wondering about using a modern =E2=80=
=9Cdonut=E2=80=9D(space saver) spare. I received feedback and suggestions f=
rom a number of list members. I=E2=80=99ll summarize the responses here, in=
 case it might be useful for others.</p><p class=3D"MsoNormal">=C2=A0</p><p=
 class=3D"MsoNormal">Although Triumph used a common bolt pattern --- 4 x 4.=
5&quot; (114.3mm) --- its rims had an uncommon offset (near zero). Modern c=
ars tend to have lots of positive offset. Because of the difference in offs=
et, many replacement rims will foul the front brake caliper. That means tha=
t the replacement rim could only be used on the back; a flat on a front tir=
e would require putting the spare on the rear and moving the rear wheel to =
the front. The alternative would be to keep a spacer with the spare so that=
 it could be used on the front if needed.</p><p class=3D"MsoNormal">=C2=A0<=
/p><p class=3D"MsoPlainText">Bob Danielson=E2=80=99s web site deals with th=
e same issue for TR6s: <a href=3D"http://tr6.danielsonfamily.org/SpaceSaver=
Spare.htm">http://tr6.danielsonfamily.org/SpaceSaverSpare.htm</a>=C2=A0 Bob=
 uses a T125x70D15 =C2=A0donut that came from a 1990 - 1997 Honda Accord Wa=
gon. Bob cautioned that he needed a =C2=BC=E2=80=9D spacer and different lu=
g nuts. Apparently the same size wheels were used on:</p><ul style=3D"margi=
n-top:0cm" type=3D"disc"><li class=3D"MsoPlainText" style=3D"mso-list:l0 le=
vel1 lfo3">Honda: Accord EX, LX, Wagon 90-97; Accord 98 - 02, Prelude 92 - =
96; EV Mini-van 97-on</li><li class=3D"MsoPlainText" style=3D"mso-list:l0 l=
evel1 lfo3">Infiniti M30 90 =E2=80=93 92</li><li class=3D"MsoPlainText" sty=
le=3D"mso-list:l0 level1 lfo3">Nissan: Altima 93-01, Maxima 85-88, 200SX &a=
mp; Turbo 84-88; 240SX 89-96</li><li class=3D"MsoPlainText" style=3D"mso-li=
st:l0 level1 lfo3">Acura: Legend 86-90; TL 2.5 95-on; Vigor 91-93</li><li c=
lass=3D"MsoPlainText" style=3D"mso-list:l0 level1 lfo3">Volvo: 40 series 98=
-03</li></ul><p class=3D"MsoNormal">=C2=A0</p><p class=3D"MsoNormal">The re=
commendation that I found most appealing was simply to use a use a smaller =
tire on standard TR rims. The contributor wasn=E2=80=99t sure, but thought =
he was using a 145/65R15 tire.</p><p class=3D"MsoNormal">=C2=A0</p><p class=
=3D"MsoNormal">I was cautioned that an odd-sized spare should not be used a=
ny longer than absolutely necessary. Running an odd-sized wheel on the rear=
 will stress the differential; running an odd-sized wheel on the front will=
 affect steering and braking.<br clear=3D"all"></p><p class=3D"MsoNormal">R=
egards,</p><p class=3D"MsoNormal">=C2=A0</p><p class=3D"MsoNormal">Dave Mac=
Kay</p><p class=3D"MsoNormal">1960 TR3A s/n 68639L</p><p class=3D"MsoNormal=
">near Toronto, Canada</p><p class=3D"MsoNormal">=C2=A0</p><p class=3D"MsoN=
ormal">=C2=A0</p><p class=3D"MsoNormal">=C2=A0</p></div></body></html>

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** [email-masked] **

Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/archive

--===============8784072380201159292==--

---

From: CFM-TR <[email-masked]>
Date: Mon, 23 Nov 2020 13:42:47 -0500

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 charset=UTF-8

As an option=2E=C2=A0 I have 165/80R15 under-inflated @20lbs and portable b=
attery air compressor that fits in rim offset=2E=C2=A0=C2=A0 haven't needed=
 it in 15 years but tested it a couple times to make sure it still holds ai=
r=2E=C2=A0 replaced 5 tires in 2017=2E

=E2=81=A3Get BlueMail for Android =
=E2=80=8B

On Nov 23, 2020, 10:47 AM, at 10:47 AM, Dave MacKay <dave@mdmack=
ay=2Eca> wrote:
>Hello:
>
>
>
>Last week, I asked about using a smaller spa=
re tire for my TR3A=2E I can
>barely force my 165/80R15 spare in, and was w=
ondering about using a
>modern
>=E2=80=9Cdonut=E2=80=9D(space saver) spare=
=2E I received feedback and suggestions from a
>number of list members=2E I=
=E2=80=99ll summarize the responses here, in case it
>might
>be useful for =
others=2E
>
>
>
>Although Triumph used a common bolt pattern --- 4 x 4=2E5"=
 (114=2E3mm) ---
>its
>rims had an uncommon offset (near zero)=2E Modern ca=
rs tend to have lots
>of
>positive offset=2E Because of the difference in o=
ffset, many replacement
>rims
>will foul the front brake caliper=2E That me=
ans that the replacement rim
>could only be used on the back; a flat on a f=
ront tire would require
>putting the spare on the rear and moving the rear =
wheel to the front=2E
>The
>alternative would be to keep a spacer with the =
spare so that it could
>be
>used on the front if needed=2E
>
>
>
>Bob Danie=
lson=E2=80=99s web site deals with the same issue for TR6s:
>http://tr6=2Ed=
anielsonfamily=2Eorg/SpaceSaverSpare=2Ehtm  Bob uses a
>T125x70D15
>donut t=
hat came from a 1990 - 1997 Honda Accord Wagon=2E Bob cautioned
>that
>he n=
eeded a =C2=BC=E2=80=9D spacer and different lug nuts=2E Apparently the sam=
e size
>wheels were used on:
>
>- Honda: Accord EX, LX, Wagon 90-97; Accord=
 98 - 02, Prelude 92 - 96;
>EV
>   - Infiniti M30 90 =E2=
=80=93 92
> - Nissan: Altima 93-01, Maxima 85-88, 200SX & Turbo 84-88; 240S=
X 89-96
>   - Acura: Legend 86-90; TL 2=2E5 95-on; Vigor 91-93
>   - Volvo:=
 40 series 98-03
>
>
>
>The recommendation that I found most appealing was =
simply to use a use
>a
>smaller tire on standard TR rims=2E The contributor=
 wasn=E2=80=99t sure, but
>thought
>he was using a 145/65R15 tire=2E
>
>
>
=
>I was cautioned that an odd-sized spare should not be used any longer
>tha=
n
>absolutely necessary=2E Running an odd-sized wheel on the rear will
>str=
ess
>the differential; running an odd-sized wheel on the front will affect
=
>steering and braking=2E
>1960 TR3A s/n 68=
639L
>
>near Toronto, Canada
>
>
>-----------------------------------------=
-------------------------------
>
>** triumphs@autox=2Eteam=2Enet **
>
>Don=
ate: http://www=2Eteam=2Enet/donate=2Ehtml
>Archive: http://www=2Eteam=2Ene=
t/pipermail/triumphs 
>http://www=2Eteam=2Enet/archive
>
>Unsubscribe/Manag=
e:
>http://autox=2Eteam=2Enet/mailman/options/triumphs/cfmtr3a@verizon=2Ene=
t

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--></style></head><body lang=3D"EN-CA" link=3D"#0563C1" vli=
nk=3D"#954F72" style=3D"overflow-wrap: break-word; zoom: 0%;"><div dir=3D"a=
uto">As an option=2E=C2=A0 I have 165/80R15 under-inflated @20lbs and porta=
ble battery air compressor that fits in rim offset=2E=C2=A0=C2=A0 haven't n=
eeded it in 15 years but tested it a couple times to make sure it still hol=
ds air=2E=C2=A0 replaced 5 tires in 2017=2E<br><br></div>
<div dir=3D"auto"=
><!-- tmjah_g_1299s -->Get <!-- tmjah_g_1299e --><a href=3D"http://www=2Ebl=
uemail=2Eme/r?b=3D16117"><!-- tmjah_g_1299s -->BlueMail for Android<!-- tmj=
ah_g_1299e --></a><!-- tmjah_g_1299s --> <!-- tmjah_g_1299e --></div>
<div =
class=3D"gmail_quote" >On Nov 23, 2020, at 10:47 AM, Dave MacKay &lt;<a hre=
f=3D"mailto:dave@mdmackay=2Eca" target=3D"_blank">dave@mdmackay=2Eca</a>&gt=
; wrote:<blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0=2E=
8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div c=
lass=3D"WordSection1"><p class=3D"MsoNormal">Hello:</p><p class=3D"MsoNorma=
l">&nbsp;</p><p class=3D"MsoNormal">Last week, I asked about using a smalle=
r spare tire for my TR3A=2E I can barely force my 165/80R15 spare in, and w=
as wondering about using a modern =E2=80=9Cdonut=E2=80=9D(space saver) spar=
e=2E I received feedback and suggestions from a number of list members=2E I=
=E2=80=99ll summarize the responses here, in case it might be useful for ot=
hers=2E</p><p class=3D"MsoNormal">&nbsp;</p><p class=3D"MsoNormal">Although=
 Triumph used a common bolt pattern --- 4 x 4=2E5" (114=2E3mm) --- its rims=
 had an uncommon offset (near zero)=2E Modern cars tend to have lots of pos=
itive offset=2E Because of the difference in offset, many replacement rims =
will foul the front brake caliper=2E That means that the replacement rim co=
uld only be used on the back; a flat on a front tire would require putting =
the spare on the rear and moving the rear wheel to the front=2E The alterna=
tive would be to keep a spacer with the spare so that it could be used on t=
he front if needed=2E</p><p class=3D"MsoNormal">&nbsp;</p><p class=3D"MsoPl=
ainText">Bob Danielson=E2=80=99s web site deals with the same issue for TR6=
s: <a href=3D"http://tr6=2Edanielsonfamily=2Eorg/SpaceSaverSpare=2Ehtm">htt=
p://tr6=2Edanielsonfamily=2Eorg/SpaceSaverSpare=2Ehtm</a>&nbsp; Bob uses a =
T125x70D15 &nbsp;donut that came from a 1990 - 1997 Honda Accord Wagon=2E B=
ob cautioned that he needed a =C2=BC=E2=80=9D spacer and different lug nuts=
=2E Apparently the same size wheels were used on:</p><ul style=3D"margin-to=
p:0cm" type=3D"disc"><li class=3D"MsoPlainText" style=3D"mso-list:l0 level1=
 lfo3">Honda: Accord EX, LX, Wagon 90-97; Accord 98 - 02, Prelude 92 - 96; =
EV Mini-van 97-on</li><li class=3D"MsoPlainText" style=3D"mso-list:l0 level=
1 lfo3">Infiniti M30 90 =E2=80=93 92</li><li class=3D"MsoPlainText" style=
=3D"mso-list:l0 level1 lfo3">Nissan: Altima 93-01, Maxima 85-88, 200SX &amp=
; Turbo 84-88; 240SX 89-96</li><li class=3D"MsoPlainText" style=3D"mso-list=
:l0 level1 lfo3">Acura: Legend 86-90; TL 2=2E5 95-on; Vigor 91-93</li><li c=
lass=3D"MsoPlainText" style=3D"mso-list:l0 level1 lfo3">Volvo: 40 series 98=
-03</li></ul><p class=3D"MsoNormal">&nbsp;</p><p class=3D"MsoNormal">The re=
commendation that I found most appealing was simply to use a use a smaller =
tire on standard TR rims=2E The contributor wasn=E2=80=99t sure, but though=
t he was using a 145/65R15 tire=2E</p><p class=3D"MsoNormal">&nbsp;</p><p c=
lass=3D"MsoNormal">I was cautioned that an odd-sized spare should not be us=
ed any longer than absolutely necessary=2E Running an odd-sized wheel on th=
e rear will stress the differential; running an odd-sized wheel on the fron=
t will affect steering and braking=2E<br clear=3D"all"></p><p class=3D"MsoN=
ormal">Regards,</p><p class=3D"MsoNormal">&nbsp;</p><p class=3D"MsoNormal">=
Dave MacKay</p><p class=3D"MsoNormal">1960 TR3A s/n 68639L</p><p class=3D"M=
soNormal">near Toronto, Canada</p></div></blockquote></div></body></html>
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