Author Topic: p3's (Read 9770 times)

TheMechwarrior · « **Reply #25 on:** November 16, 2012, 01:56:37 PM »

Based on feedback I've seen here in these forums I'd like to get me a pair of PR3 tyres for my ST1100.

Just looking at the Michelin brochure I don't see a 160/70 ZR17 (73W) even mentioned

Am I missing something here?

In my defence:
1. I took a man look

2. I'm tired

3. I have headache that's been getting worse for hours

In need of some of these

alans1100 · « **Reply #26 on:** November 16, 2012, 02:02:31 PM »

Quote from: TheMechwarrior on November 16, 2012, 01:56:37 PM

Based on feedback I've seen here in these forums I'd like to get me a pair of PR3 tyres for my ST1100.

Just looking at the Michelin brochure I don't see a 160/70 ZR17 (73W) even mentioned
Am I missing something here?

In my defence:
1. I took a man look
2. I'm tired
3. I have headache that's been getting worse for hours
In need of some of these

No you haven't missed anything.........Only Avon and Bridgestone still have 160/70ZR17 tyres to suit 1100 OEM tyre specs.

Usually a 160/60 tyre gets fitted but the 170/60 tyre (1300) shouldn't be a problem.

saaz · « **Reply #27 on:** November 16, 2012, 02:04:44 PM »

If you want the PR3, you will have to get a 170/60 rear, which works fine (it is ST13 size) - the 160/60 makes the rear sit a bit too low for my liking. If a 110/80 x 18 front is not available, a 120/70 x 18 works fine as well (later ABS bikes uses the wider front tyre anyway, but has a wider rim as well)

TheMechwarrior · « **Reply #28 on:** November 16, 2012, 02:39:26 PM »

Ah, thanks for that.

Would like to retain the OEM tyre size.

With reports of the Avons delaminating and the police using the Z6 tyres I guess I'll go for those.

I did find the Metzeler Z6 tyres available via Ebay:
At your door for $US 157.55

http://www.ebay.com/itm/Metzeler-Roadtec-Z6-Rear-Tire-160-70ZR-17-TL-73W-/320991576542?hash=item4abc96c1de&item=320991576542&pt=Motorcycles_Parts_Accessories&vxp=mtr

STeveo · « **Reply #29 on:** November 16, 2012, 02:41:54 PM »

Mech, have just fitted a 170/60 to my 1100 and still plenty of room. Same OD as the 160/70.
Read your ebay site again, $79.99 for postage!!! That makes it dearer than the local ones.

Tipsy · « **Reply #30 on:** November 16, 2012, 02:44:12 PM »

py
And you can do what I did and fitted a 180 /60 - 17 on my 1100 and yes they do fit very easily.

Tipsy

TheMechwarrior · « **Reply #31 on:** November 16, 2012, 02:46:50 PM »

Quote from: Tipsy on November 16, 2012, 02:44:12 PM

py
And you can do what I did and fitted a 180 /60 - 17 on my 1100 and yes they do fit very easily.

Tipsy

Just looking at what that means: http://www.tacomaworld.com/forum/tirecalc.php?tires=160-70r17-180-60r17
It looks like a better fit than the 170/60 option.

Tipsy · « **Reply #32 on:** November 16, 2012, 02:52:08 PM »

py
well I am very happy with the PR3's

Tipsy

STeveo · « **Reply #33 on:** November 16, 2012, 03:07:36 PM »

Good find Mech, saves a lot of button punching on calculator.

TheMechwarrior · « **Reply #34 on:** November 16, 2012, 03:22:10 PM »

Quote from: Tipsy on November 16, 2012, 02:44:12 PM

py
And you can do what I did and fitted a 180 /60 - 17 on my 1100 and yes they do fit very easily.

Tipsy

Tipsy,
Can you do a visual check on your rear tyre for me? Is it a 180/60 or a 180/55?

saaz · « **Reply #35 on:** November 16, 2012, 03:38:42 PM »

I have used a few Avons over the years and had zero problems. I would not hesitate to use them again, but availabilty and the price compared to others I get from www.jakewilson.com are now factors (and I think that rear would be a 180/55 but it must be a 'narrow' one as I had a 170/60 that was a real tight squeeze to fit)

Bikebear · « **Reply #36 on:** November 16, 2012, 04:09:46 PM »

I'll stick with Bridgestone 023's in the original sizes. No-one has yet been able to tell me definitively what effect different rear tyre sizes will have on the ABS operation. I know the difference between 170/60 and 160/70 is 3% (170 slightly smaller) but how much will the ABS cope with? Is there an expert out there who will definitively say the ABS computer won't have a problem when it's needed.

      Current Tire     New Tire     Difference
Diameter inches (mm)     25.82 (655.8 )     25.03 (635.8 )     -0.79 (-20) -3%
Width inches (mm)     6.3 (160)     6.69 (170)     0.39 (10) 6.3%
Circum. inches (mm)     81.11 (2060.26)     78.64 (1997.42) -2.47 (-62.83) -3%
Sidewall Height inches (mm)     4.41 (112)     4.02 (102)     -0.39 (-10) -8.9%
Revolutions per mile (km)     781.14 (485.38 )     805.71 (500.64)   24.57 (15.27) 3.1%

Turtle · « **Reply #37 on:** November 16, 2012, 04:18:24 PM »

As tipsy has done a PR3 in 180/55/17 fits fine on the St1100 no problem with removing and replacing easy fit just makes the bike stand up more upright on the side stand

TheMechwarrior · « **Reply #38 on:** November 16, 2012, 06:15:39 PM »

I don't have ABS to worry about but I will try to stick with OEM sizes.
The Metzeler Z6, Bridgestone or Dunlop are my only options.

Brock · « **Reply #39 on:** November 16, 2012, 07:14:42 PM »

My new PR3 rear is a 170/60 ZR 17

alans1100 · « **Reply #40 on:** November 16, 2012, 07:14:57 PM »

Looks like Dunlop has released a tyre in 1100 sizes which they dropped in the Roadsmart 1 series.

Sportmax RoadSmart II

http://www.dunloptyres.com.au/dotAsset/6e81a89a-945a-4231-9e8e-7ac5fabf58c3.pdf

saaz · « **Reply #41 on:** November 16, 2012, 08:36:10 PM »

I tried the first Roadsmart and it was nothing special. It is ok though, but no more.

I have used non-OEM size front and back on non-ABS over the years with no issues. Brand and type of tyre seems to be more of an issue than size.

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