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#283452 - 01/18/08 01:35 PM "OEM FITMENT" when buying tires, what does this mean?  
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brianbmw Offline
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Central Massachusetts
I've been looking for new tires for my R1200ST and i have found that many manufactures list all the tire sizes with prices and then they list "oem fitment" on some models that are the same size as those listed above, but they are more money, what does this really mean?

#283453 - 01/18/08 01:55 PM Re: "OEM FITMENT" when buying tires, what does this mean? [Re: brianbmw]  
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ShovelStrokeEd Offline
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Many times, the OEM (original equipment manufacturer) will specify a tire with a bit different construction than the tire manufacturer uses for general replacement tires. Generally, a thicker tread or stronger side walls to handle unusual weight. This allows the bike manufacturer to obtain a tire which will match the load rating of their motorcycle and still offer a "name" brand or style tire.

Examples that come to mind are the Gold Wing and BMW LT series bikes. These things are HEAVY to begin with and their riders tend to load them to the gunwales with clothing/tools/over sized pillions. To keep within the normal size ranges supplied, they need special construction tires.


Just as every skill is improved by practice, so also is every bad habit made worse by repetition.

Swim upstream in life, only dead fish go with the flow.
#283454 - 01/18/08 02:43 PM Re: "OEM FITMENT" when buying tires, what does this mean? [Re: ShovelStrokeEd]  
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brianbmw Offline
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I was thinking about getting the Conti Road Attacks for my 1200ST. I have heard that they wear out quickly on certain models. Maybe the oem or c fitment is made for the heavier weight of my bike and therefore would last a bit longer. If i can get 9 thousand miles out of them i'd be happy. Sporttour.com has a great price on them right now.
Brian

#283455 - 01/18/08 02:59 PM Re: "OEM FITMENT" when buying tires, what does this mean? [Re: brianbmw]  
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chrisolson Offline
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+1 on what Ed said. My '06 K1200GT specifies an OEM model of Z6 for it. My first set went over 9K on the rear and 12K on the front which I attribute to a more robust construction.

My dealer replaced the front with the non-OEM spec Z6 (claimed there was no such thing until I pointed it out in the metzler literature) so we'll see. Its pretty much impossible to tell if there is any "handling" difference since I can only now compare a worn out tire to a new one so obviusly the new one is going to feel great.


Chris
IBA 18417
85 VF500F
95 DR 350
99 R1100S
03 FZ1
#283456 - 01/18/08 03:20 PM Re: "OEM FITMENT" when buying tires, what does this mean? [Re: brianbmw]  
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Pictou Offline
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I had two sets of Conti's on my bike and both were the factory spec tires (in fact my bike came from the factory with a set of Conti's). The best I was able to do on my RT was about 11,000kms (which I think is about 6600 miles). The front still had some life but the rear was down to tread wear bars. They are great tires however, handle good, stick rain or shine and ride well.

Quote:

I was thinking about getting the Conti Road Attacks for my 1200ST. I have heard that they wear out quickly on certain models. Maybe the oem or c fitment is made for the heavier weight of my bike and therefore would last a bit longer. If i can get 9 thousand miles out of them i'd be happy. Sporttour.com has a great price on them right now.
Brian





Andrew
2010 1200RT
#283457 - 01/19/08 11:29 AM Re: "OEM FITMENT" when buying tires, what does this mean? [Re: ShovelStrokeEd]  
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eddd Offline
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Quote:

...and their riders tend to load them to the gunwales with...over sized pillions.




Do you have anyone in mind?




12 Kawasaki EX650
13 Yamaha XT250
16 KTM RC 390
96 R1100RT - forced retirement at 175,000

#283458 - 01/19/08 12:38 PM Re: "OEM FITMENT" when buying tires, what does this mean? [Re: eddd]  
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Silver Surfer/AKAButters Offline
Timberrrrrr!!!!!
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Quote:

over sized pillions.




There is just no end to political correctness.


Rich
2008 K1200 GT - Silver Surfer
2002 R1150RT, 2006 Honda 919, 2001 Suzuki DR350, 1996 BMW K75RT, 1988 Suzuki GS750, 1984 Suzuki GS500, 1974 Honda 450CL, 1972 Honda 350SL, 1966 Shwinn Stingray.
#283459 - 01/19/08 06:54 PM Re: "OEM FITMENT" when buying tires, what does this mean? [Re: brianbmw]  
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notacop Offline
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When I was using 020's there is apparently several letter differences in tires with one being called for by BMW. Some pairs got a bit more milage than others but I was never aware of the specific difference. Seems all the tires lasted 5 to 8K miles. 021's rears are lasting a long time verses the front. 2 to 1 so far, maybe more.
The bike is heavy and pushes the front in the twisties and wears the sides more than the center.


Why is it that 'Stupid' stands out so well?
#283460 - 01/19/08 11:48 PM Re: "OEM FITMENT" when buying tires, what does this mean? [Re: notacop]  
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John Bentall Offline
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The OEM spec tyres are different - usually stronger. This extra strength might be to allow a fully loaded R1200RT to cruise at 125+ mph on a German Autobahn for 90 minutes at a time before refuelling. If you are going to ride like this, then do consider OEM spec tires.
Some riders swear they can tell the difference in handling or tire life between OEM spec and normal - others cannot.
At the time that I put Pilot Road 2's on my 1200RT they were not recommended by BMW - but they were endorsed by Michelin.
I am happy enough with this situation. YMMV.


R1200RT LE - Ebony

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