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Author Topic: Smallest Rear Tire Size  (Read 1306 times)
DarkSideR
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« on: July 08, 2021, 12:36:33 PM »

I am trying to help Sweet Cheeks get to where she can manage her new 98 Tourer.

She is 5'0" short.

We have already bought 11.5" Rear Shocks. We will slip the front forks down 3/4" of an inch. It also has a Lowboy Ultimate.

If that doesn't lower the bike enough what is the smallest/shortest M/C tire that can be safely run on the rear?
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2001 Valkyrie Super Tourer
VRCC#34410
VRCCDS#0263
The emperor has no clothes
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« Reply #1 on: July 08, 2021, 01:02:24 PM »

I haven’t run it. But this looks like the smallest I would run.

https://www.discounttire.com/buy-tires/toyo-tire-extensa-hp-ii/p/87655
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DarkSideR
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« Reply #2 on: July 08, 2021, 01:08:50 PM »

I haven’t run it. But this looks like the smallest I would run.

https://www.discounttire.com/buy-tires/toyo-tire-extensa-hp-ii/p/87655

Not interested in D/S'ing this one. Looking for smaller/short Bike Tires.
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2001 Valkyrie Super Tourer
VRCC#34410
VRCCDS#0263
The emperor has no clothes
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« Reply #3 on: July 08, 2021, 01:11:06 PM »

I haven’t run it. But this looks like the smallest I would run.

https://www.discounttire.com/buy-tires/toyo-tire-extensa-hp-ii/p/87655

Not interested in D/S'ing this one. Looking for smaller/short Bike Tires.
That’s going to limit it quite a bit. This MIGHT fit.

https://www.cyclegear.com/tires/shinko-sr-880-881-tires?sku_id=981066
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turtle254
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Livingston,Texas


« Reply #4 on: July 08, 2021, 02:49:03 PM »

I am trying to help Sweet Cheeks get to where she can manage her new 98 Tourer.

She is 5'0" short.

We have already bought 11.5" Rear Shocks. We will slip the front forks down 3/4" of an inch. It also has a Lowboy Ultimate.

If that doesn't lower the bike enough what is the smallest/shortest M/C tire that can be safely run on the rear?
Don't slide the tubes up in the triple tree. The clamps needs to be at the large swell it the tubes to clamp right. Tried it and got a bad high speed wobble!  The clamps are design for the larger portion on the tubes.
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Jess from VA
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« Reply #5 on: July 08, 2021, 02:56:25 PM »

Look at the rears for Michelin Commander II's.  They stick very good and wear pretty good, and have some oddball sizes.  

https://www.cyclegear.com/tires/michelin-commander-ii-tires

With a wheel for a 180, I don't know how narrow a bike tire will work.  Also, it's a heavy bike, and the rear tire carcass shouldn't be too thin/skinny.  A smaller thinner car tire is going to be a heavier carcass tire (and safer), than a smaller thinner bike tire (I'm just saying) (guys who have run 175 and 185 car tires say it's hard to tell the difference from bike tires.... or that they are less car-tire-like in handling characteristics than the 205s most of us use; like wanting to stand the bike up in sweeper curves).  

This tire calculator can be helpful.  Plug in the stock rear size (180/70R-16) then start looking at smaller/shorter tires and see the differences.  

https://www.tacomaworld.com/tirecalc?tires=180-70r16-
« Last Edit: July 08, 2021, 03:09:17 PM by Jess from VA » Logged
98valk
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South Jersey


« Reply #6 on: July 08, 2021, 08:04:36 PM »

I am trying to help Sweet Cheeks get to where she can manage her new 98 Tourer.

She is 5'0" short.

We have already bought 11.5" Rear Shocks. We will slip the front forks down 3/4" of an inch. It also has a Lowboy Ultimate.

If that doesn't lower the bike enough what is the smallest/shortest M/C tire that can be safely run on the rear?
Don't slide the tubes up in the triple tree. The clamps needs to be at the large swell it the tubes to clamp right. Tried it and got a bad high speed wobble!  The clamps are design for the larger portion on the tubes.

yep 3/4" is much too much. only up to 1/4" can be done safely.
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1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp

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John Adams 10/11/1798
98valk
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South Jersey


« Reply #7 on: July 08, 2021, 08:05:54 PM »

I am trying to help Sweet Cheeks get to where she can manage her new 98 Tourer.

She is 5'0" short.

We have already bought 11.5" Rear Shocks. We will slip the front forks down 3/4" of an inch. It also has a Lowboy Ultimate.

If that doesn't lower the bike enough what is the smallest/shortest M/C tire that can be safely run on the rear?

narrow the seat so the thighs are more straight downward.

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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C  10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp

"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
F6Dave
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« Reply #8 on: July 09, 2021, 06:11:20 AM »

Maybe the GL1800 rear tire? It's 180/60 x 16 vs. 180/70 x 16, and lowers the bike by a bit more than .5 inch. They're widely available.
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DarkSideR
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To be good, and to do good, is all we have to do.

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« Reply #9 on: July 09, 2021, 06:23:16 AM »

Maybe the GL1800 rear tire? It's 180/60 x 16 vs. 180/70 x 16, and lowers the bike by a bit more than .5 inch. They're widely available.

 cooldude
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2001 Valkyrie Super Tourer
VRCC#34410
VRCCDS#0263
DarkSideR
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Posts: 1793


To be good, and to do good, is all we have to do.

Pueblo, Colorado


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« Reply #10 on: July 09, 2021, 06:24:00 AM »

I am trying to help Sweet Cheeks get to where she can manage her new 98 Tourer.

She is 5'0" short.

We have already bought 11.5" Rear Shocks. We will slip the front forks down 3/4" of an inch. It also has a Lowboy Ultimate.

If that doesn't lower the bike enough what is the smallest/shortest M/C tire that can be safely run on the rear?

narrow the seat so the thighs are more straight downward.



Heard that referred to as a "Nose Job", and yes that will be the last thing we do to the bike.  cooldude
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2001 Valkyrie Super Tourer
VRCC#34410
VRCCDS#0263
F6Dave
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Posts: 2258



« Reply #11 on: July 09, 2021, 07:39:44 AM »

Maybe the GL1800 rear tire? It's 180/60 x 16 vs. 180/70 x 16, and lowers the bike by a bit more than .5 inch. They're widely available.

 cooldude
Actually some Wing riders use the Valk tire to gain a bit of ride height.
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Motorider
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Pennsylvania


« Reply #12 on: July 10, 2021, 05:11:56 PM »

Thinking outside the box, has she considered having higher thicker soles put on her riding boots. Most shoe repair places can do this. Every little bit helps.
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