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Old 08-05-2006, 03:09 PM   #1 (permalink)
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Default Difference between 60 and 70 tires...

I have done a search but have not really found what I was looking for.

Question... What is the difference in performance by using a 60 series vs. a 70 series tire? I am looking at Michelin Pilot Powers on my 2004 R6. I know that the 70 series is bigger than the 60 series but what are the performance differences between the two.

On motorcycle-superstore.com, they show having 120/60's and 120/70's for the front.

And should I go with the factory size 60's or the bigger 70's?

Thanks,
Thomas
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Old 08-05-2006, 03:52 PM   #2 (permalink)
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the 70 series is TALLER not biger. it has a pointier profile. it is less stable in flat straight up and down siturations. it is MORE stable in the corners because there is more sidwall and therefore more rubber is on the ground making a larger contact patch when at lean. the 70 series will raise the front of your bike by a few mm and this must be compensated for by either lowering the front end (sliding the fork tubes up in the tripples by about 6-10 mm depending on your liking) or if you have an 03-04, shimming the rear shock with washers to raise the rear up by approx the same ammount that the front is raised.

should you do it? where do you ride? if you are mainly a hiway cruiser or flat land stunter, there is no point. if you ride the twistys much it definitely helps with stability at lean.
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Old 08-05-2006, 05:01 PM   #3 (permalink)
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Okay thanks!!!

I mostly commute back and forth to work. Occasionally I will hit a few twists. And I am looking at doing the occasional track day. Should I go with the 65 series to balance out the two, one for the back and forth travel to work and two for the occasional track day?

What do you think?

Thomas
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Old 08-05-2006, 05:26 PM   #4 (permalink)
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i didn't know 65 series existed so i'd say i'm not informed enough to give my opinion about that. to me, i like the 70 series. its relatively easy to correct for the height difference with the dropping of the front end or the shimming of the rear. so tehre is little consequence. oh i forgot, speaking of consequence, first gen bikes sometimes ate the front fender depending on what brand of tire you put on. meaning, when the tire got hot and expanded, especially under hard braking, it would rub on the inside of the fender and litterally rub a hole through the fender. so that is something to consider too. if you want to do NO work and just throw a set of tires on, get the 65s. the difference is subtle and if you mostly commute you may not even feel the difference. if you are interested in having it handle that much better than it already does in the twisties, then get the 70 and deal with the SLIGHT fussing that is needed to get it to work
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Old 08-05-2006, 06:16 PM   #5 (permalink)
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Michelin is one of the few who make a 65 series tire. My Brutale comes with a 65 series front Pilot Sport, and the Pilot power is one of the few models who even have a 65 series.

As far as clearance goes, the difference between a 60 and a 65 in height difference is minimal, but the difference between a 65 and 70 is a HUGE difference height wise. I dunno why, but it just works out that way. You'de think it's be a middle ground, but it's closer to a 60 profile than a 70...I would definitly say not in the middle of the two.
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Old 08-07-2006, 02:45 AM   #6 (permalink)
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Definitely get the 70...you won't regret it.
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