Supporting Member 1moreroad Posted May 24, 2015 Supporting Member Share Posted May 24, 2015 What pressures are people running on twisty roads? Track days? 10 years ago when I owned a sport bike, most guys talked about pressure about as much as we do windshields. Yamaha says 36/42 which is probably best for fuel economy. I'm guessing 34/38 or so is probably a little better for grip, but I don't remember all the rules of thumb for figuring out ideal tire pressure. Thanks. Link to comment Share on other sites More sharing options...
Guest bmidd Posted May 24, 2015 Share Posted May 24, 2015 What pressures are people running on twisty roads? Track days? 10 years ago when I owned a sport bike, most guys talked about pressure about as much as we do windshields. Yamaha says 36/42 which is probably best for fuel economy. I'm guessing 34/38 or so is probably a little better for grip, but I don't remember all the rules of thumb for figuring out ideal tire pressure. Thanks. I run 30/32 on my Q3's. Will probably do a track day this fall, that is my everyday pressure. Gives me just a little bit of rubber beading on the edge when being aggressive. Link to comment Share on other sites More sharing options...
Premium Member ULEWZ Posted May 25, 2015 Premium Member Share Posted May 25, 2015 What pressures are people running on twisty roads? Track days? 10 years ago when I owned a sport bike, most guys talked about pressure about as much as we do windshields. Yamaha says 36/42 which is probably best for fuel economy. I'm guessing 34/38 or so is probably a little better for grip, but I don't remember all the rules of thumb for figuring out ideal tire pressure. Thanks. I have been running 34/39 with good results. Basically 2 psi less than manual recommendations with the D222s. A government which robs Peter to pay Paul can always depend on the support of Paul. George Bernard Shaw (1856-1950) Bikes: 2015 FJ-09, Seat Concepts seat cover and foam, Cal Sci medium screen, rim stripes, factory heated grips, Cortech Dryver tank bag ring, Modified stock exhaust, FlashTune with Graves fuel map, Cree driving lights, Aux power socket. 2012 Street Triple type R (Wifes) 2007 FJR1300 (Sold!) Link to comment Share on other sites More sharing options...
odisspunkmuer Posted May 30, 2015 Share Posted May 30, 2015 What pressures are people running on twisty roads? Track days? 10 years ago when I owned a sport bike, most guys talked about pressure about as much as we do windshields. Yamaha says 36/42 which is probably best for fuel economy. I'm guessing 34/38 or so is probably a little better for grip, but I don't remember all the rules of thumb for figuring out ideal tire pressure. Thanks. I always inflate my tires to the recommendations and haven't had an issue. I think you'll find more grip gains from proper throttle control and properly setup suspension for proper weight transfer in the corners, than you ever will from a few less PSI. I'm not saying don't do everything you can to get the best grip, there's just a lot of things higher on the list than tire pressure you should be checking off before fine tuning 4 psi between 2 tires. Link to comment Share on other sites More sharing options...
trench Posted May 30, 2015 Share Posted May 30, 2015 I agree, that cornering at normal road speed is much more about suspension balancing weight evenly. Get on that throttle in the corner essentially. Link to comment Share on other sites More sharing options...
Guest branthopolis Posted May 31, 2015 Share Posted May 31, 2015 Yamaha's recommended pressure coincidentally corresponds to the max capacity of the tire.. If you weigh significantly less than the max capacity of the bike, there is no reason to run pressure that high, other than in an effort to achieve the best possible fuel mileage.. You will absolutely gain better grip and a smoother ride by dropping some pressure. I run 34/36 (cold) Link to comment Share on other sites More sharing options...
Premium Member fanowater Posted June 5, 2015 Premium Member Share Posted June 5, 2015 I used to vary the tire pressure a lot. 32F/34R for pure sport riding, 34/38 for sport touring and 30/30 for track days. But I recently did a 1200 mile sport tour on Dunlop Q3's set to 38/40 and grip was just as good and the tire looks less worn from the trip than others have in the past. The added pressure did affect bump absorption a little. I plan to stick with the higher tire pressures. A good tire pressure gage is a must, btw. Cheers 2015 FJ-09 2006 Triumph Daytona 675 Link to comment Share on other sites More sharing options...
Supporting Member 1moreroad Posted June 8, 2015 Author Supporting Member Share Posted June 8, 2015 Thanks for the responses. I asked the question initially because on my ZX6R - which had some quirky issues like the exhaust can touching down before the pegs on one side - tire pressure made a huge difference, even in the canyons at legal speeds (in tight corners). Dropping tire pressures 2 - 4 psi meant the difference between sliding and tracking. Same rider, same corner, same conditions, just adjusting tire pressure. On the track IIRC, you dropped the tire pressure another 2 psi or so (at the track the rule of thumb was to adjust pressure until you were ~ 10% higher with hot tires than cold). It's good to hear that the FJ is not as sensitive to tire pressure. I have not yet had to worry about it - the FJ is taller than the ZX and feels like it is leaning far but with much wider tires than my WR which I could ride to the edge at legal speeds on tight corners - on the FJ myself, but I wanted to read others' opinions. Link to comment Share on other sites More sharing options...
thruster8999 Posted June 8, 2015 Share Posted June 8, 2015 Thanks for the responses. I asked the question initially because on my ZX6R - which had some quirky issues like the exhaust can touching down before the pegs on one side - tire pressure made a huge difference, even in the canyons at legal speeds (in tight corners). Dropping tire pressures 2 - 4 psi meant the difference between sliding and tracking. Same rider, same corner, same conditions, just adjusting tire pressure. On the track IIRC, you dropped the tire pressure another 2 psi or so (at the track the rule of thumb was to adjust pressure until you were ~ 10% higher with hot tires than cold). It's good to hear that the FJ is not as sensitive to tire pressure. I have not yet had to worry about it - the FJ is taller than the ZX and feels like it is leaning far but with much wider tires than my WR which I could ride to the edge at legal speeds on tight corners - on the FJ myself, but I wanted to read others' opinions. For what its worth. On the zx6r I am running 32 in the rear and 34 up front. The fj I run 34 rear and up front 36. With passenger the rear is bump up to 38 to 40 depend how much weight I have on the rear. Front stays the same. Link to comment Share on other sites More sharing options...
Supporting Member 1moreroad Posted June 8, 2015 Author Supporting Member Share Posted June 8, 2015 For what its worth. On the zx6r I am running 32 in the rear and 34 up front. The fj I run 34 rear and up front 36. With passenger the rear is bump up to 38 to 40 depend how much weight I have on the rear. Front stays the same. Yep. Thanks. Recommended tire pressure per drivegreen.com was 34/36 for the bike which is +2 psi what you run. That matches my memory. On the track I probably ran 30/32. Again, that makes sense. Link to comment Share on other sites More sharing options...
Premium Member fanowater Posted June 9, 2015 Premium Member Share Posted June 9, 2015 I just got the bike Saturday, so am not pushing it terribly hard yet. But I did 180 miles yesterday on the Yamaha recommended settings and was satisfied with handling and grip (36F/42R). 2015 FJ-09 2006 Triumph Daytona 675 Link to comment Share on other sites More sharing options...
brmidd Posted June 21, 2015 Share Posted June 21, 2015 I've altered mine to 34f/36r, good compromise for a bit more tire wear. I was chewing them up @ 30/32. Link to comment Share on other sites More sharing options...
Premium Member fanowater Posted June 25, 2015 Premium Member Share Posted June 25, 2015 Pushed it harder this weekend (and got the break in done - Woo Hoo!). Still happy with 36F/42R. Cheers 2015 FJ-09 2006 Triumph Daytona 675 Link to comment Share on other sites More sharing options...
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