Optimal Tire Pressure

[stingray]

These bikes have some of the best shocks money can buy. You have a lot better options than lowering the tire pressure if your goal is to make the bike handle and ride better through suspension adjustments. Lowering the pressure from 42psi will only have a negative effect on the lifespan and symmetrical wear pattern of the tires and give you next to nothing in your quest of trying to obtain a better ride.

Rides better than when the dealer released it to me with 28 psi rear and 31 psi front. I guess they know best. My roads are like cobblestone and I'm under 200 lbs very little freeway riding. Suits me better.

 

[Wdugan9080]

Rides better than when the dealer released it to me with 28 psi rear and 31 psi front. I guess they know best. My roads are like cobblestone and I'm under 200 lbs very little freeway riding. Suits me better.

"TRIUMPH ROCKET III - R / GT / TFC (2020 - ) Motorcycle tyres - myNETmoto" TRIUMPH ROCKET III - R / GT / TFC (2020 - ) Motorcycle tyres
Yeah I picked mine up last year, new to the rocket and when I took a test ride, the bars wobbled slightly going around a curve at 45 mph, even asked the seller about it, the bike had a bias up front and a radial in back? And the front pressure was 26 and back 32. So for the first real ride I took put the recommended for 36, r 42, and the wobble was gone, but mixing a bias with a radial, I know that's a Big no, no on a car??
I don't know what year you have but the 2020 recommends 42 both, they have it 11 lower in front and 14 lower in the rear, 14 lbs is about 1 bar, that's like 1/3 or 33% lower than recommended, I would think that tire is sagging even without your 200 lbs on it, I would question the dealership and see if that's normal, sounds way off to me, I've had a flat on a Sunday, 2 days after the dealership replaced my tire's on a kz 1000 with 2 up, noticed it right before a turn, it was very sponge, tg it just so happened to be a service station on the turn, it was closed but the owners friend was working on a van, let me look for a patch, and found when they put the tube in it was folded, and when it heated up and expanded the fold unfolded and popped, yeah tube, shows my age.
Yeah that service manager got an earful, started replacing the tires myself, I didn't have a balencer though, never seemed to have a problem either???
I've lowered the pressure on a 4x4 for the Sand that much, but never did anywhere near 100mph in the sand, would hate to find out the hard way at high speed that I was wrong, I would definitely investigate that a little more, hey Mechanic's are people and people make mistakes, hey I trusted a buddy one time I had to take him somewhere and I had my wheel cylinders out of my mustang and asked him to put on one line on one side while I did the other, I got done, asked if he got it right, and went down the road, after I dropped him off my brakes went out at a light, I ran over the curb and made a right, they made a new lane just for me, he should be happy he wasn't in the car I was beyond mad, he never tightened the line all the way. be safe, GL

 

[Kojack1970]

"TRIUMPH ROCKET III - R / GT / TFC (2020 - ) Motorcycle tyres - myNETmoto" TRIUMPH ROCKET III - R / GT / TFC (2020 - ) Motorcycle tyres
Yeah I picked mine up last year, new to the rocket and when I took a test ride, the bars wobbled slightly going around a curve at 45 mph, even asked the seller about it, the bike had a bias up front and a radial in back? And the front pressure was 26 and back 32. So for the first real ride I took put the recommended for 36, r 42, and the wobble was gone, but mixing a bias with a radial, I know that's a Big no, no on a car??
I don't know what year you have but the 2020 recommends 42 both, they have it 11 lower in front and 14 lower in the rear, 14 lbs is about 1 bar, that's like 1/3 or 33% lower than recommended, I would think that tire is sagging even without your 200 lbs on it, I would question the dealership and see if that's normal, sounds way off to me, I've had a flat on a Sunday, 2 days after the dealership replaced my tire's on a kz 1000 with 2 up, noticed it right before a turn, it was very sponge, tg it just so happened to be a service station on the turn, it was closed but the owners friend was working on a van, let me look for a patch, and found when they put the tube in it was folded, and when it heated up and expanded the fold unfolded and popped, yeah tube, shows my age.
Yeah that service manager got an earful, started replacing the tires myself, I didn't have a balencer though, never seemed to have a problem either???
I've lowered the pressure on a 4x4 for the Sand that much, but never did anywhere near 100mph in the sand, would hate to find out the hard way at high speed that I was wrong, I would definitely investigate that a little more, hey Mechanic's are people and people make mistakes, hey I trusted a buddy one time I had to take him somewhere and I had my wheel cylinders out of my mustang and asked him to put on one line on one side while I did the other, I got done, asked if he got it right, and went down the road, after I dropped him off my brakes went out at a light, I ran over the curb and made a right, they made a new lane just for me, he should be happy he wasn't in the car I was beyond mad, he never tightened the line all the way. be safe, GL

Yeah, we have to double check everything these days. It's unfortunate, but it seems the way things are. Last rear tire I put on the Rocket, pulled the wheel myself, wanting to grease the driveshaft and drive splines, as well as change the bevel box oil. Took it to the shop, they mounted and balanced the tire and I picked it back up. Not thinking much about it, I put everything back together and lowering the bike to the ground I noticed the new rear tire was nearly flat. Checked with a gauge on only 16 psi was in the tire!! I was going to check my pressure anyway, but I was just shocked by such a low pressure from the shop. I would have expected they over pressure the rather than under. .

Similarly, in Dec of last year I had new tires put on the car from a reputable tire shop. Driving home it felt weird and my gut told me the tires were over inflated. At home I pulled out the gauge and every f'ing tire was a different pressure from 46 down to 30. How is this possible? The pressures are on the door jam, like every other car in the last 40 years, 33 up front and 35 in the back. I adjusted the PSI in all tires and the car was back to normal. The desk clerk from the tire shop goes to my gym and I gave him hell when I saw him and also let them know on their "how was our service" review email.

 

[WOTYSGTB]

Rides better than when the dealer released it to me with 28 psi rear and 31 psi front. I guess they know best. My roads are like cobblestone and I'm under 200 lbs very little freeway riding. Suits me better.

Again, fluctuating tire pressure in an attempt to adjust the way the motorcycle rides or handles when you have some of the best suspension components at your disposal seems insane to me but as long as your happy . Between preload, rebound and dampening you can get a much better ride but also a better handling, more fun, and much safer motorcycle to enjoy. Keep the rubber side down

 

[stingray]

Again, fluctuating tire pressure in an attempt to adjust the way the motorcycle rides or handles when you have some of the best suspension components at your disposal seems insane to me but as long as your happy . Between preload, rebound and dampening you can get a much better ride but also a better handling, more fun, and much safer motorcycle to enjoy. Keep the rubber side down

ok

 

[Mighty Mouse]

I just got back from a 150 mile ride. I put the tire pressure to 42/42 just to see the difference. I felt every bump in the road and my back is on fire. I understand the safety in the pressure but I'm going back to 40/38. I have been trying to find the sweet spot with my suspension for a year. I finally got it dialed in so if I kept the pressure at 42/42 I would have to start all over again. If you have a young back 42/42 would be doable but I don't so it is what it is. Too each his own, cheers.

 

[Wdugan9080]

I just got back from a 150 mile ride. I put the tire pressure to 42/42 just to see the difference. I felt every bump in the road and my back is on fire. I understand the safety in the pressure but I'm going back to 40/38. I have been trying to find the sweet spot with my suspension for a year. I finally got it dialed in so if I kept the pressure at 42/42 I would have to start all over again. If you have a young back 42/42 would be doable but I don't so it is what it is. Too each his own, cheers.

That sounds okay, my 08 r3t recommendations in the manual is 42/36. So less weight on the front, and only going 2 down on the back sounds okay, as long as the profile isn't flexing a lot more, are the newer rockets coming with radials? I've always run radials since they came out, higher speed rating and feel they hold the road better, sure everything has a factor of safety built into the engineering, but I'd much rather be safe than sorry. Wish I could justify getting a 2020, but I really like the touring, and who needs an extra 200cc's. When I was looking at what to get, I was looking at the Harley ultra's, didn't really find what I wanted and could afford, well what I felt like letting sit out under a cover, no garage, my buddy was pushing me towards a chief, so I had never heard of the rocket, I was just checking, I googled what's the biggest production motor made a it answered the rocket, and that was it, I was hooked. Keep it up and between the lines, Enjoy

 

[stingray]

I checked before and after today on a hot 95'f day after 75 miles.
started cold front 38 psi & rear 37 psi
after 75 miles front 42 psi & rear 42 psi

Time for ice cream.

CURRENT WEATHER​

1:26 PM
95°F
Partly sunny
RealFeel® 108°
Dangerous Heat
RealFeel Shade™ 104°
Quite Hot

 

[Martin_z_BA]

Yesterday I increased the pressure from 2.6 bar to recommended 2.9 bar on both on GT. It is very hard, not comfortable. I will test it few days, maybe I will go down to 2.7. I am not professional and like comfortable ride, so I am not able to consider the consequences. I think, engineers knows, what is the best for bike and its parts, but even all bikes are (should be) the same, every man is different.
PS: This time I used digital pressure tool, but usually I go with cold tires to tire service, they have calibrated pressure gauges.

 

[WOTYSGTB]

Again, these bikes have some of the best suspensions of any production bike on the market. Using tire pressure in an attempt to get a better ride is like cutting your lawn with a pair of scissors, there is a much better option available if you learn how to adjust the suspension. Adjusting tire pressures outside the manufacturer's specs will only result in less than optimal performance and longevity that the engineers designed the tire for. In almost 40 years of riding the only time I have ever used tire pressure as a tool is on the track and it was not to get a smoother ride but rather traction.