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BANGKOK 18 July 2019 22:24

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I decided to replace the original IRC tires on my CBR-150R.  The tires have low mileage, but are 5 years old.  The tread is very deep, hardly worn and the sidewalls still look like new, now cracks or any signs of wear, but since they are old and from what I have read on this forum, the IRC's aren't very popular, I figured that I would replace them.  I drove down to the Pirelli tire shop just past the Maxis tire store on Sukumvit to check out what was available.  My CBR has 100/80/17 on the front and 130/70/17 on the back.  The only tire sets he had that would fit my back were the Michelin Pilot Street and the IRC izs Sport S-99.  He had a lot of Pirelli tires, angel GT's, but not in the size needed.  I was all ready to buy the Michelin, but when I asked if they were the Pilot Street radials, he said that they were bias ply tires.  I had been reading reviews of the Pilot Streets and the radials were rated much better.  I asked about them; he looked them up and they were double the price of the bias ply pilot streets.  Actually, he was pushing the IRC izs tires claiming that they were a better tire than the pilot streets.  I mentioned to him that most reviews of IRC tires were not so favorable, but he said that this model was much better, night and day, better than the Road Winners that came originally on my bike.  The IRC izs sport s-99 set costs Baht 3,500 and the pilot streets costs Baht 3,600.  Searching the internet, it appears that Pirelli doesn't offer the Angel GT's in the size I need.  The closest he had was 110/70/17 and 140/70/17.

 

In the US, the pilot street radials are only slightly more expensive than the radial model.  I saw this video comparing sportbike tires using a KTM RC390.  I found it odd that the Michelin pilot street radials finished in last place whereby the IRC Road Winner RX01, my original CBR tires finished just ahead of them.

 

Anyway, I would appreciate your recommendations.  I'm not in a rush as my original IRC tires are still in great shape, but due to their age, I would like to eventually change them out.

 

Thanks,

 

 

 

 

 

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I would expect that you will not be able to notice a difference between a radial or bias ply tire when riding a 150cc bike on the road. If there should be a bigger difference in these two tires they probably used a different rubber compound as well, and this is where the different performance really comes from, not from how the tire is made.

 

I don't have a specific recommendation for you, but one for buying for tires in Thailand in general. Here in Thailand the choices are generally quite limited compared to western countries. Many manufacturers don't sell here at all and the ones that do often have fewer models in fewer sizes available, combined with usually higher prices.

You should contact one of the bigger tire shops which have many options available, for example http://29tire.com through Line and ask them for a list of possible tire options for your tire sizes. Then do some research to figure out which tire makes sense for you. Like this you don't have to waste time watching Youtube reviews about tires which you can't even buy in Thailand.

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11 hours ago, PattayaDavid said:

I mentioned to him that most reviews of IRC tires were not so favorable,

They have improved except to inexperience tyre snobs. 😄

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13 hours ago, jackdd said:

I would expect that you will not be able to notice a difference between a radial or bias ply tire when riding a 150cc bike on the road.

Exactly! OP bike makes about 18 BHP, if it was making another 100 BHP I could understand his concern, for the most part most any decent tyre is going to work well in Thailand as the roads and tires get so hot, most of the time slicks would work better than any treaded tyre - when its damp and rainy the story changes! :shock1:

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54 minutes ago, papa al said:

The guy that runs that shop knows what he is talking about.

Yeah, I didn't catch his name, but he did seem very knowledgeable about the products that he sold from what I could understand; we did have a slight communication problem when discussing the performance factors of the tire models.  He seemed to express that the IRC iz's were the best tire for the money.  They are a softer compound than the Pilot Streets.  He rated the Pilot Streets as a medium compound and the IRC's as a soft to medium compound.  It would be great if they were a dual compound like the Pirelli Angel GT's which I think are the best bang for the buck, but unfortunately not available in the size I need for my CBR; they would be a great choice for a CBR 300 or larger.

Searching on the internet, I couldn't find much information either on the IRC iz's and all of the YouTube videos were in Thai so not much help there either.  I did check out 29tire.com, but still, there aren't many tires, especially the front tire, that are available for the CBR unless I go up a size which I don't really want to do.  

 

I think that the iz's might be a good tire, but being an IRC tire, I just want to make sure that they would be a significant improvement over my original IRC road winners RX-01 tires especially in the rain or rain slicked roads.  I'm also curious, being that these have a softer compound as to how long will they last.  For Baht 3,500 plus mounting, it's not all that much out of pocket to give them a try, but I'm going to search a little more before committing, maybe take a look at Bridgestone.

 

What are you running on your CBR?

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Do you plan a drastic change in your riding? Because you have 5 year old tires with little milage and thinking about milage you will get out of these choices you presented is a non-factor unless you ride way way more from now on. I'd bet both the Michelin as well as those IRCs that the guy recommended will work just fine for you. At these prices you wont get a high-tech tire. They will all be "good enough" for a 150cc. In any case I'd bet they are way better than the OEM tires you got before even if both are from IRC.

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2 hours ago, PattayaDavid said:

For Baht 3,500 plus mounting, it's not all that much out of pocket to give them a try, but I'm going to search a little more before committing, maybe take a look at Bridgestone.

 

What are you running on your CBR?

... guessing the 3500/3600 includes mounting & balancing.

Top quality work, which they stand behind.

papa has bought many tires (15-20) there.

Don't forget to tip.

 

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1 hour ago, eisfeld said:

Do you plan a drastic change in your riding? Because you have 5 year old tires with little milage and thinking about milage you will get out of these choices you presented is a non-factor unless you ride way way more from now on. I'd bet both the Michelin as well as those IRCs that the guy recommended will work just fine for you. At these prices you wont get a high-tech tire. They will all be "good enough" for a 150cc. In any case I'd bet they are way better than the OEM tires you got before even if both are from IRC.

I bought the bike in October 2017 from my neighbor's wife after her husband's passing.  The bike was bought brand new in 2013 and only had 4 kilometers, yes 4 kilometers on the odometer when I purchased it hence the low mileage.  The tires were 4 years old at the time I purchased it, but they still had the new tire paint and rubber tits on them.  They have less than 2000 kilometers on them now, but my reason for replacing them was due to their age, now 5 1/2 years old, although they still look to be in perfect condition as the bike has always been parked in an enclosed garage, first his and then my garage.  I could probably still use them, but I think I would prefer to replace them as a safety measure.  Plus, I have heard nothing, but negative comments about the original equipment IRC Road Winner tires.

 

The IRC iz-s Super Sport 99 tires he is selling were manufactured in 2018, but the Michelin Pilot Streets were manufactured in 2017.  I'm kind of leaning towards the IRC's, but haven't ruled out an alternative; still searching and looking for recommendations.

 

Thanks,

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2 minutes ago, papa al said:

... guessing the 3500/3600 includes mounting & balancing.

Top quality work, which they stand behind.

papa has bought many tires (15-20) there.

Don't forget to tip.

 

Can you tell me the name of the seller; he told me, but i didn't quite catch it.  The prices he initially gave me 3500/3600 was for the tires only.  We didn't discuss total price because I wasn't ready to purchase.  By the way, do you know what he charges for balancing and mounting a new set of tires?

I always tip for good service.

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38 minutes ago, PattayaDavid said:

The IRC iz-s Super Sport 99 tires he is selling were manufactured in 2018, but the Michelin Pilot Streets were manufactured in 2017.  I'm kind of leaning towards the IRC's, but haven't ruled out an alternative; still searching and looking for recommendations.

I wouldn't buy anything manufactured in 2017. Even 2018 would make me look for alternatives depending on the month. Just a personal choice for me not to buy anything over 12 months old. Maybe I was lucky so far but I was always able to source tires that were quite recently manufactured.

 

I good sign that the seller is not trying to push those Michelin on you even though they are sitting in the inventory already a longer time.

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1 hour ago, PattayaDavid said:

Can you tell me the name of the seller; he told me, but i didn't quite catch it.  The prices he initially gave me 3500/3600 was for the tires only.  We didn't discuss total price because I wasn't ready to purchase.  By the way, do you know what he charges for balancing and mounting a new set of tires?

I always tip for good service.

 
... guessing the 3500/3600 includes mounting & balancing.

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23 hours ago, PattayaDavid said:

I bought the bike in October 2017 from my neighbor's wife after her husband's passing.  The bike was bought brand new in 2013 and only had 4 kilometers, yes 4 kilometers on the odometer when I purchased it hence the low mileage.  The tires were 4 years old at the time I purchased it, but they still had the new tire paint and rubber tits on them.  They have less than 2000 kilometers on them now, but my reason for replacing them was due to their age, now 5 1/2 years old, although they still look to be in perfect condition as the bike has always been parked in an enclosed garage, first his and then my garage.  I could probably still use them, but I think I would prefer to replace them as a safety measure.  Plus, I have heard nothing, but negative comments about the original equipment IRC Road Winner tires.

 

The IRC iz-s Super Sport 99 tires he is selling were manufactured in 2018, but the Michelin Pilot Streets were manufactured in 2017.  I'm kind of leaning towards the IRC's, but haven't ruled out an alternative; still searching and looking for recommendations.

 

Thanks,

Please lets us know which way you went on the tires as I am getting ready to swap out mine on the 150 cbr as well and following this thread with interest.

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5 hours ago, Randell said:

Please lets us know which way you went on the tires as I am getting ready to swap out mine on the 150 cbr as well and following this thread with interest.

I haven't decided yet, still researching, but I'll post once I've replaced my old tires.  I went out riding this afternoon and actually the OEM IRC Road Winners worked fine; I'm mostly concerned due to their age and of course, it nevers hurts to upgrade.  Tire availability is kind of limited on the CBR 150's due to the odd sizes especially the front tire.  I think that the new 2019 CBR 150 that it due out soon comes standard with either 140 or 150 rear tire which would allow for better quality replacements.

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