[oilstates2003]

Could a slight increase in front tire pressure cause a slight vibration through out bike....... Or is something wrong here :? :? :? :? :? :? :? :? :? :? :? :? ...
(was running app. 31 psi and now 38psi)

 

[Chicago-Spike]

You likely have some cupping/scalloping of the front tire from running them at 31 psi. You can see this scalloping if you look at the tire and compare it to these pictures. 8)
http://www.rattlebars.com/valkfaq/tirewear/

 

[resiurcdnal]

If the tires have a lot of miles and are cupped, changing pressure could cause the vibration. That's what happened to mine this spring when I took it out for the first time. A new set of Metz 880's took care of that little problem.

 

[oilstates2003]

Tires have app. 6,700 miles before i rose the air pressure!!!!

 

[resiurcdnal]

The miles are getting up there on thise ires, especially since you rode them underinflated for so long. Are they cupped?

 

[Bareass172]

Tires have app. 6,700 miles before i rose the air pressure!!!!

That's WHY they're cupped, lol... :wink:

 

[Chicago-Spike]

Tires have app. 6,700 miles before i rose the air pressure!!!!

That's WHY they're cupped, lol... :wink:

Yep, only fix for that now is new rubber. Keep the pressure at 38-40 psi. The owners manual psi is far too low. 8)

 

[Ronster]

tires

Chicago,
That's a shocker! The manual is wrong at 33? Should front AND back be 38 to 40?
Ron

 

[dd3genrider]

Not the only fix... I rode all day long on a stretch of road we call Red Bluff Road, a old logging road, that follows a river.
My friend was on a Moto-Guzzi trying prove he could lose me. At the end of the day, no more cupping. I run 40psi front and back. 1800C
No problems since.