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Honda ST1300 Section => Tyres...to suit your ST1300 => Topic started by: HunterTodd on March 11, 2014, 07:05:15 PM

Title: Michelin PR3
Post by: HunterTodd on March 11, 2014, 07:05:15 PM
I am in the process of putting new tyres on the girl and have gone for Michelin PR3's which seem to be the most common tyre used by members of the forum.

I am swapping from Pirelli Angels STs which had 14k on them.  Front was worn to the indicators, Rear was shagged completely.

Anyhow the tyre fitter said I was running the Pirellis too hard at 42 PSI. (Depsite all the info I have saying this is the correct pressure for the ST)

My general question to the forum is what pressure are PR3 users running in their tyres? My tyre fitter say 36 psi and no more than 38 psi.

Thanks Guys
Title: Re: Michelin PR3
Post by: zevk on March 11, 2014, 07:11:26 PM
Hi Hunter,

I installed new PR3 recently (1000km) ago and have been inflating 42 psi front and rear. I am very happy with the performance so far and traction is fantastic.  :thumbs

As I understand, due to the higher mass weight of the ST1300 (+/-300 kg without rider) this is the CORRECT pressure and anything less for this tire will induce premature wear and poor handeling...

just my opinion, no doubt you will get many other opinions... :whistle

regards
Title: Re: Michelin PR3
Post by: HunterTodd on March 11, 2014, 07:18:53 PM
Thanks Zev,
What tyres were you running before and how much did you get from them?
Title: Re: Michelin PR3
Post by: Brock on March 11, 2014, 07:20:19 PM
Yep 42 PSI for me (when I remember to check)
Title: Re: Michelin PR3
Post by: HunterTodd on March 11, 2014, 07:21:47 PM
Hi Brock,

What sort of kays do you get out of the PR3s?
Title: Re: Michelin PR3
Post by: Brock on March 11, 2014, 07:34:29 PM
Hmmm,

good question, I will go n check my data.. dont go away

Got about18000Ks from the front, and 14000 out of the back. Could expect better with better tyre checks.
Title: Re: Michelin PR3
Post by: zevk on March 11, 2014, 07:38:21 PM
I had a bridgestone on front and a metzler on back i think.
The front tire was badly scalloped on the left side but had good treads. rear was at the indicators at 10,000km aprox
i think you will like the PR3 but ask around if a PR4 is available, I think I saw an advert in the US
Title: Re: Michelin PR3
Post by: Diesel on March 11, 2014, 07:41:54 PM
Zevk nailed it! (In his initial post)

I run 42 and 44 psi and get 29,000km and 23,000km respectively. Got almost as good out of PR2s previously.

Can't see a reason to change.

Search tyre pressures by user Diesel for more info.

Cheers, Diesel
Title: Re: Michelin PR3
Post by: HunterTodd on March 11, 2014, 07:49:54 PM
I had a bridgestone on front and a metzler on back i think.
The front tire was badly scalloped on the left side but had good treads. rear was at the indicators at 10,000km aprox
i think you will like the PR3 but ask around if a PR4 is available, I think I saw an advert in the US

Funny you say about the dfferent wear on each side. The angel ST rear was almost through to the carcase on the right and only just down to the wear indicators on the left. What suprised me was how quickly they went off.

I checked them before a ride up Thunderbolts way and down the Oxley (about 700 kays) and there was still a little tread on the ride hand side. Buy the time I got home it was completely flogged out on the right.
Title: Re: Michelin PR3
Post by: zevk on March 11, 2014, 07:56:24 PM
Peter Stevens service manager who fit the tires claimed "all front tires on australian roads will develop some "scalloping" due to the way the roads are constructed bieing sloped to the left or right for water drainage..." interesting theory, not sure if 100% true...
Title: Re: Michelin PR3
Post by: Malcolm6112 on March 11, 2014, 07:57:00 PM
You will find the front tyre will wear more on the right. The camber of the road is to blame there.

PR3, I have got almost 25,000 from the rear. That's with combined towing as well.

42 is the correct pressure, it also helps getting good tyre wear too.

 :blu13
Title: Re: Michelin PR3
Post by: ST2UP on March 11, 2014, 08:25:03 PM
PR3 43/46......and did same on 023's got 19k out of front and still had another 2,000 if we had too.


A quality gauge that you trust is the secret, don't rely on the service station gauge, some can vary as much as 5psi or more  :||||


 :beer
Title: Re: Michelin PR3
Post by: Brock on March 11, 2014, 08:30:18 PM
Quote
vary as much as 5psi

That doesnt mean that the gauge is inaccurate, as the tolerance for them can be +/-5% of max reading. Thats why its a good idea to get yours calibrated if you can...
Title: Re: Michelin PR3
Post by: Biggles on March 11, 2014, 08:58:01 PM
or borrow Diesel's  :p
Title: Re: Michelin PR3
Post by: Shiney on March 11, 2014, 09:54:42 PM
I run 42 same as most of the guys... got 21'000 out of the tyres last time :thumbsup
Title: Re: Michelin PR3
Post by: Biggles on March 12, 2014, 12:44:20 AM
Do a search on PR3 in the Forum.  They have been thoroughly endorsed by everyone who has fitted them.
And as Diesel says, the subject of tyre pressures has also been discussed at length, and pressures lower than 40 psi have never proven helpful (unless you want to go beach bashing).
Title: Re: Michelin PR3
Post by: HunterTodd on March 12, 2014, 06:05:52 PM
Thank you all,

I have got a PR3 on the rear on already and will take the front in on Saturday.  42 psi is the go.

We have all our tools calibrated at work uner our QA system, so I can check my gauge against our standard.

 It will be a real bummer if my gauge was reading low and I stuffed the Pirelli because of it. Having said that the tread on the PR3 looks better to me.

I am having a problem getting the rear brake pads back in.

I can't get the hole for the locating pins to line up with the caliper without a lot of force. Any ideas?
Title: Re: Michelin PR3
Post by: Brock on March 12, 2014, 06:13:12 PM
Make sure that the front notch in the pad is hooking on the rail, it some times takes a little fiddling to get it to seat. try the outside one first, and put the pin in to hold it while you do the inside one. If you have to use force, its not in correctly
Title: Re: Michelin PR3
Post by: HunterTodd on March 12, 2014, 07:12:17 PM
Hi Brock,

I was going to pull the caliper off to see what I was doing wrong. When I removed the wheel a clip fell out of the front of the caliper. The manual shows very unclearly that it comes from the front of the caliper and I put it in the postion which looked the most obvious but I think I may have got it wrong and the pads are fouling on the clip somehow.
Title: Re: Michelin PR3
Post by: Brock on March 12, 2014, 07:35:23 PM
If you have a look at the 1100 manual, section 15 page 20, it shows the break down of the calliper. It should idetify where the bit came from.

If you dont have it, look here

http://ozstoc.com/index.php?topic=433.0 (http://ozstoc.com/index.php?topic=433.0)
Title: Re: Michelin PR3
Post by: richo on April 27, 2014, 06:12:21 PM
I have just fitted PR3's (after the favourable reports on them) and the the SA RTE yesterday was my first run since bedding them.   Chalk and cheese from my old bridgestones.   I have been officially converted.  If I can get anywhere near the mileage that others are getting I will be a happy camper :thumbs :runyay.  Richo