tire pressure you run on 919 - Wrist Twisters
View Poll Results: tire pressure you run in 919 ?
Honda recommended 36 front 42 rear all year round 69 64.49%
lower pressure all the time (please post the values) 25 23.36%
lower pressure in the cold/wet weather 4 3.74%
do not remember when I checked my tire pressure last time 11 10.28%
Multiple Choice Poll. Voters: 107. You may not vote on this poll

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  • 1 Post By cmurphy84
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post #1 of 39 Old 12-16-2007, 06:08 PM Thread Starter
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tire pressure you run on 919

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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post #2 of 39 Old 12-16-2007, 06:12 PM
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32 front & 34 rear.

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post #3 of 39 Old 12-16-2007, 06:22 PM
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36 front 42 rear all year round. I heard that low pressure is one of the causes of cupping.

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post #4 of 39 Old 12-16-2007, 06:40 PM
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I run 36 (F) 40 (R) for daily commuting.All weather.
I run 32 (F) 36 (R) for canyon play riding. All weather.

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post #5 of 39 Old 12-16-2007, 07:31 PM
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By the book, cause I don't know anything else yet. Once I get a few more miles racked up and the stock tires to the landfill, I'll experiment with the pressures. Does anyone here use nitrogen in their tires?

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post #6 of 39 Old 12-16-2007, 07:32 PM
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36 frt / 40 rear

It likes 40psi.I used to check it and put it to 42 and a few days later(no matter the season)it would be back to 40 and then stay there till I pumped it back to 42 ,few days later repete now I just leave it at 40.

Wierd but it only drops pressure if I put it at 42.It has been this way with at least the last two rear tires.

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post #7 of 39 Old 12-16-2007, 09:44 PM
 
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About 32-35 at 70F, and then just let it fluctuate with temperature.

i.e.
28-31 at 30F
34-37 at 90F

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post #8 of 39 Old 12-16-2007, 10:38 PM
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33 front, 37 rear

I like odd numbers better.

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post #9 of 39 Old 12-16-2007, 11:39 PM
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f36 r42 cold. If it rains then lower them by ~3lbs and go slower.

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post #10 of 39 Old 12-17-2007, 03:02 AM
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Quote:
Originally Posted by tvetree View Post
36 frt / 40 rear

It likes 40psi.I used to check it and put it to 42 and a few days later(no matter the season)it would be back to 40 and then stay there till I pumped it back to 42 ,few days later repete now I just leave it at 40.

Wierd but it only drops pressure if I put it at 42.It has been this way with at least the last two rear tires.
I've been sneaking over to your house and letting the air out.

I usually run the max pressures (36/42), especially when touring. I will sometimes drop both 2 to 4 psi if I'm just backroading it.

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post #11 of 39 Old 12-17-2007, 08:20 AM
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This time I'm sticking to 36-42. I weigh 240 and took advise on lowering before to get a better ride with more grip and cupped the front bad. Next time you take off a cupped tire, try pushing on the tread after you remove the tire! It'll scare the crap out of you as to how thin it is.

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post #12 of 39 Old 12-17-2007, 08:55 AM
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36 rear 32 front




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post #13 of 39 Old 12-17-2007, 10:43 AM
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38r / 34f most of the time. If I'm planning some aggressive twisties I'll drop it to 36r / 32f. Seems to work pretty well carrying my 220 lb ass.

Whenever I drop it lower than that it starts feeling too squirrely for my taste when pushing it.

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post #14 of 39 Old 12-17-2007, 12:09 PM
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In the vicinity of 32f/36r (on Pilot Roads). I'll bump it up a couple of pounds for freeway runs.

When I take her to the track, I'll likely go down to 30/30 (and probably try mounting some Pilot Powers or Metzler Z6s).

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post #15 of 39 Old 12-17-2007, 04:51 PM
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"Does anyone here use nitrogen in their tires?"
we all use nitrogen in our tires. it's the majority of air.

9 psi rear, 30-38 front. hey! make yours a hardtail and keep it at 32psi...i ain't !

4400 miles on the oem michelin front. sure it's cupped, and sure it's such a hard compound that i sometimes push/skid my front end while trying to do my burnout...but a new one won't make me any quicker so it STAYS.

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post #16 of 39 Old 12-17-2007, 09:23 PM Thread Starter
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Question

Quote:
Originally Posted by bucky View Post
"Does anyone here use nitrogen in their tires?"
we all use nitrogen in our tires. it's the majority of air.

9 psi rear, 30-38 front. hey! make yours a hardtail and keep it at 32psi...i ain't !

4400 miles on the oem michelin front. sure it's cupped, and sure it's such a hard compound that i sometimes push/skid my front end while trying to do my burnout...but a new one won't make me any quicker so it STAYS.
WOW .. NINE PSI ?? you are not kidding ? what kind of gas millage are you getting ? or is it for a dragstrip exclusively ??

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post #17 of 39 Old 12-17-2007, 10:12 PM
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Hello!! I don't need just the pressures! WHAT TIRES ARE YOU USING WITH THESE PRESSURES????
---- Something like this ----------------
I've stated this quite often -- the Pilot Roads love low pressures. Solo pressures rear 31 to 33, front 26 to 29.
Yeah I'm crazy, but this isn't evidence of it. They work brilliantly under all conditions, especially in the wet, and last a good long time. At placard pressures they are a disaster.
This applies to the Roads only!!!!!!!
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post #18 of 39 Old 12-18-2007, 08:27 AM
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Quote:
Originally Posted by serge View Post
WOW .. NINE PSI ?? you are not kidding ? what kind of gas millage are you getting ? or is it for a dragstrip exclusively ??
Bucky's one of them "straight-liners" so gas mileage is

But out of curiosity - How many passes would you say you get out of a tank, Bucky? Of course, you probably don't fill it up do ya?

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post #19 of 39 Old 12-18-2007, 10:25 AM
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Quote:
Originally Posted by robtharalson View Post
Hello!! I don't need just the pressures! WHAT TIRES ARE YOU USING WITH THESE PRESSURES????
---- Something like this ----------------
I've stated this quite often -- the Pilot Roads love low pressures. Solo pressures rear 31 to 33, front 26 to 29.
Yeah I'm crazy, but this isn't evidence of it. They work brilliantly under all conditions, especially in the wet, and last a good long time. At placard pressures they are a disaster.
This applies to the Roads only!!!!!!!
------ There now, that wasn't so hard was it? -------

Rob

Thanks for the input on the Pilot Roads, Rob. I'll try running mine a bit lower than the pressures I've been running (32f/36r), especially since I'm relatively light (160 lbs.) I've been very pleased with their wet-conditions reliability.

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post #20 of 39 Old 12-18-2007, 10:45 AM
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shinko 003, the harder of the two compounds. what was i thinking NOT going with the ultrasoft?

exclusively drag. i think i did less than 1 mile of street riding last year.

i've never tried to calculate my racing mileage. my used PCIII that i bought off ebay a couple of years ago appears to be a big reason why my bike can be VERY fussy starting. i believe that my hard starting almost perfectly coincides with that PCIII installation. so i've been letting my bike idle WAY too much between rounds, to avoid having to rush to the line, use ether, etc. naturally, all the idling will make it tough to calculate mileage. and i'm thinking this wouldn't be an option at race tracks with an air temperature over 70 or so. but i am curious what my actual w.o.t. racing fuel mileage is. no, i avoid filling the tank pretty religiously. okay, agnostically.

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post #21 of 39 Old 09-09-2008, 05:13 PM
 
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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?

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post #22 of 39 Old 09-09-2008, 06:07 PM
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38f 36r

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post #23 of 39 Old 09-09-2008, 07:55 PM
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Quote:
Originally Posted by NewBama9'er View Post
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!

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post #24 of 39 Old 09-09-2008, 08:22 PM
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Quote:
Originally Posted by razorbike View Post
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.

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post #25 of 39 Old 09-09-2008, 08:37 PM
 
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39 rear / 36 front.
Avon Storm Sts
I'm at ~160lbs in gear.

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post #26 of 39 Old 09-10-2008, 04:50 AM
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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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post #27 of 39 Old 04-21-2016, 03:02 PM
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Thumbs up 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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post #28 of 39 Old 04-21-2016, 09:15 PM
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36F 40R If I'm riding some hard twisties ill drop the rear to 38ish

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post #29 of 39 Old 04-22-2016, 04:47 AM
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Smile 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.

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post #30 of 39 Old 05-25-2020, 05:59 PM
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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.


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post #31 of 39 Old 05-25-2020, 07:26 PM
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Quote:
Originally Posted by Isaiah Wright View Post
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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post #32 of 39 Old 05-26-2020, 02:01 PM
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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.

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post #33 of 39 Old 05-26-2020, 02:26 PM
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Quote:
Originally Posted by Trailing_Throttle View Post
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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post #34 of 39 Old 05-28-2020, 06:50 AM
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Quote:
Originally Posted by Trailing_Throttle View Post
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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post #35 of 39 Old 05-29-2020, 12:50 AM
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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.

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post #36 of 39 Old 05-29-2020, 04:28 PM
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Quote:
Originally Posted by bacis View Post
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.

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post #37 of 39 Old 05-29-2020, 05:21 PM
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Quote:
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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).

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post #38 of 39 Old 05-30-2020, 03:53 PM
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I use Pirelli tyres on my 919.
28 front and 32 rear. Solo.

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post #39 of 39 Old 05-30-2020, 09:32 PM
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I ran 31 from 30 rear for track day pressures, but about 33 36 for street for good turn in

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