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tire pressure you run in 919 ?

tire pressure you run on 919

25820 Views 40 Replies 31 Participants Last post by  mynameisthomas
i have seen many discussion on this, so lets see what collective wisdom (if there is such thing) will tell us ;))
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Are there any tire suggestions for my new 9'er? The last bike I had loved a 'lil wider back tire but this one seems perfect. What kinds of tires are perfect for the 9'er?
Are there any tire suggestions for my new 9'er? The last bike I had loved a 'lil wider back tire but this one seems perfect. What kinds of tires are perfect for the 9'er?
Stock tires at max pressure - not so good

Stock tires with reduced pressure depending on rider weight - better

Stock size Pilot Powers with 32f/36r - priceless



Data based on a 210-220 lb. rider!
Stock size Pilot Powers with 32f/36r - priceless
Data based on a 210-220 lb. rider!

When I change tires for the sportbike crowd that is what they run on the Pilot Powers.
39 rear / 36 front.
Avon Storm Sts
I'm at ~160lbs in gear.
Michelin Pilot Power Tires - 34 Front / 39 Rear. I'm about 185lbs and always ride solo. My wife said something about "one of us needs to be alive to raise our children"
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Honda 919 vs. Kawasaki zrx 1200

Purchased a 919 and so far love it. Had an 03 zrx 1200 and loved it but front end seemed to push in corners with stock suspension. 919 seems to be all around great bike. I installed Yoshi slip on mufflers and it runs really good and sounds good. Bike feels like a 600 with 1000 power. Gear box is a little stiff but the 07 bike was never ridden by first owner as it has 450 miles on it. I did not get owners manual is how I came to site to look for proper pressure on tires. I have had several bikes over the last 40 years and am partial to Kawasaki but the 919 is pretty sweet. I like the upright bars it offers as the lay down positions are not my style. Hard to believe a bike like this can get into 100 plus speed going into 3rd gear with a top end of 155 plus who needs the big bikes when this one offers light weight and plenty of power and speed. Sure it can not hang with a 1200 or bigger in a race but the cops will lock you up if caught doing it so I tend to just do little short burst of speed and avoid the racing and top end death wish that some love.
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36F 40R If I'm riding some hard twisties ill drop the rear to 38ish
tire pressure 919

I am going to try 32 front and 40 rear as the roads where I am are a mix of gravel, blacktop and, highway so maybe that will be good point to start. I know some bikes do cup bad even if pressure is at the best.
Jumping on this discussion late! On my Michelin Pilot Road 5's, I ran 36/42 typically. Looking back, it was probably a little high.
Now, I just put Dunlop Sportmax Q3+'s, and am running 34/32 and love it! I have less chicken strip in 100 miles than I got the entire 6,500 miles, and feel much more confident on corners.
Jumping on this discussion late! On my Michelin Pilot Road 5's, I ran 36/42 typically. Looking back, it was probably a little high.
Now, I just put Dunlop Sportmax Q3+'s, and am running 34/32 and love it! I have less chicken strip in 100 miles than I got the entire 6,500 miles, and feel much more confident on corners.
36/42 is purely a liability dodge based on the required pressure to meet the maximum load rating of the tire.
36/42 is counter productive to feel, wet and dry grip, and ride/handling quality.
But if one could somehow create a load on a 919 that is same or near the load rating for the tire, then the high pressure must be used for safety reasons.
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Don't forget the speed rating of those tires...."Z" I think so the higher pressure recommendations are also in support of that. Z is good for at least 149 MPH. You might not want to run that fast with 30 PSI in the tires.
Don't forget the speed rating of those tires...."Z" I think so the higher pressure recommendations are also in support of that. Z is good for at least 149 MPH. You might not want to run that fast with 30 PSI in the tires.
The higher numbers are for maximum load rating only.

High speeds are a different kettle of fish and rather nuanced.
Which test standard?
What applied load level?

Doing top end on public roads or at a track day solo for some distance at many MPH over the speed rating is most likely going to be fine ( such as trapping 165 mph every lap on Z speed rated tires at 28 psi cold).
The bigger issue is riding heavy for hours on really hot pavement, such as two up touring on a heavy bike.
Running the tires a bit harder helps control tire temperature and increase tire life.
I generally run 32/35 on the street.
If I'm going to do a hours long day ride with a passenger in warm weather, I generally go to 33/38.

Some fact based common sense does need to prevail overall.
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Don't forget the speed rating of those tires...."Z" I think so the higher pressure recommendations are also in support of that. Z is good for at least 149 MPH. You might not want to run that fast with 30 PSI in the tires.
I run close to 160 pretty regularly on my race bike with 25 PSI in the rear tire... and guys on 1000's are closer to 180 with similar pressure... and that's 25 PSI off warmers, so probably closer to 20 cold.
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I run 34f/40r on Pilot Road 4 tires only because I read on here long ago to go ~2psi lower than OEM spec. Can't say I'd notice the difference though.
I run 34f/40r on Pilot Road 4 tires only because I read on here long ago to go ~2psi lower than OEM spec. Can't say I'd notice the difference though.
I don't remember that one but it would be interesting to see if any context was part of it.
For solo local riding those values will make little difference from the characteristics if 36/42, as in sacrifice of everything except liability related in terms of a milkable corporate entity.
I don't remember that one but it would be interesting to see if any context was part of it.
For solo local riding those values will make little difference from the characteristics if 36/42, as in sacrifice of everything except liability related in terms of a milkable corporate entity.

It probably wasn't an actual recommendation to specifically run 2psi lower, I may have deduced that based on what people were saying and the amount of 2-up I was riding. I made a note to myself but didn't note why. I should probably be running lower pressures now since I ride solo more often and I'm a lightweight (140lbs).
I use Pirelli tyres on my 919.
28 front and 32 rear. Solo.
I ran 31 from 30 rear for track day pressures, but about 33 36 for street for good turn in

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