Tire Air Question

[blueman]

My manual says 42 PSI in the rear tire and 36 in the front also on the swing arm. In the manual but not on the swing arm it also recommends 36 in the rear and 36 in the front for HIGH SPEED TRAVEL. I tested it and I think I know why. Why?

 

[Redfish Hunter]

Why? Why what exactly?

Why did you post this two times? Why are we discussing tire pressures AGAIN? Why is this not in NEPRT yet?

What exactly are you asking? Are you asking why the manual is recommending you wear out your front tire prematurely? Are you asking why Yamaha recommends a lower tire pressure for high speed?

For my part I am asking myself why I responded and if a Google Search was performed. But I am feeling a bit grouchy this evening...

 

[RadioHowie]

But I am feeling a bit grouchy this evening...

Errrrr....yes.....yes you are!

 

[ionbeam]

Forum wisdom seems to see the front tire, regardless of manufacturer doing the best in the 42 psi range and the rear someplace in the 42-44 psi range. This yields the best tire life, tire condition and handling. But please, be sure you are running the correct seasonal air, right now you should be running Spring air and in 6 weeks using Summer air

 

[Roy Epperson]

Forum wisdom seems to see the front tire, regardless of manufacturer doing the best in the 42 psi range and the rear someplace in the 42-44 psi range. This yields the best tire life, tire condition and handling. But please, be sure you are running the correct seasonal air, right now you should be running Spring air and in 6 weeks using Summer air

+1

 

[majicmaker]

But I am feeling a bit grouchy this evening... :angry01:

Errrrr....yes.....yes you are!

Sounds like Redfish needs a little nap..... Zzzzzzzzz

 

[garyahouse]

I've been running 40-42 in my front tire forever. Works pretty good for me.

Gary

darksider #44

 

[El Toro Joe]

But I am feeling a bit grouchy this evening... :angry01:

Errrrr....yes.....yes you are!

Sounds like Redfish needs a little nap..... Zzzzzzzzz

Or maybe a Snickers bar

 

[ahchiu]

Thanks ionbeam, that reminds me to change the air in my tires, I thought it was handling like Winter tires.

 

[blueman]

I noticed at high speeds the bike feels much more comfortable less road vibes with 36 front and back. This was also mentioned in other bike forums a busa forum comes to mind. You would think they put it in the manual for a reason . I have been told the additional heat at high speed is the reason. Would nitrogen be an option then???

 

[bluesdog]

FSM sez 39 psi front, 42 psi rear. Like many here I get superior results with slightly higher pressures. iirc my owner manual also has 39/42.

Of course, our Canadian air is typically colder, and therefore heavier...

 

[SoCalFJR1300]

I noticed at high speeds the bike feels much more comfortable less road vibes with 36 front and back. This was also mentioned in other bike forums a busa forum comes to mind. You would think they put it in the manual for a reason . I have been told the additional heat at high speed is the reason. Would nitrogen be an option then???

Higher tire pressure equals a harder ride.

You'll get more life out of the tire at 42-44 rear and 42 front but the ride is harder AND if you like to lean it over a lot in the twisties I'd run lower pressure.

I ride 40 rear and 39 front kind of the best of both worlds

 

[Not a Biker]

Thank's I was just going to ask a Question on tire pressure and you guys' took all the work out of it .

 

[HotRodZilla]

I run 41 front, 43 rear. Have for years, and love the feel of the bike.

Just remember these are radial tires, so you cannot put biased air in them. Radial summer air only now.

 

[Brodie]

Of course, I'm running the super special Dark Air in my rear tire. It runs best at 30 psi. So far it has got me past 36,000 miles and still going strong.

The fresh PR4 GT up front is set to 42.

YMMV

Brodie

 

[Mihalis fjr]

I run 36 & 36 as the manual says for nine years until now.Works very good for me.

 

[Surly]

I always check my air pressure as at Parliament House. It's amazing how much lighter the bike feels with that HOT air in the Tires.

 

[bluesdog]

Tire pressure specs are different for Gen I and Gen II/III. Gen I recommends 36psi front and rear, Gen II/III recommends 39/42 (although as noted above many run with higher, especially in the front, which prone to premature cupping wear if the pressure is too low.

 

[FJRMGM]

40 front and 42 rear on my Gen I and tire wear is normal.