NEW bfg KM2 vibrate at 60mph bad
07-26-2012, 06:16 AM
#1
JK Newbie
Thread Starter
Join Date: Jun 2012
Location: Michigan
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
NEW bfg KM2 vibrate at 60mph bad
Ok so I just installed new 15x8 MB 72's and 35x12.50x15 KM2's at 35psi yesterday on my 2012 unlimited with 600 miles. Left DT drove around the city and wow what a nice soft ride, so I decided to get on the highway got up to 60mph and the jeep just vibrates, not really through the steering just the whole jeep vibrates. Take it down to 45-50 smooths right out. I called BFG this morning and they basically said that the size of the tire is not the size that came on the vehicle. NO joke I said you tell me what new vehicle takes a 35x12.50x15 he could not answer the question. So BFG does not stand behind their products obviously. Any thoughts??
07-26-2012, 06:20 AM
#2
JK Enthusiast
Join Date: Feb 2012
Location: Spanaway WA
Posts: 116
Likes: 0
Received 0 Likes
on
0 Posts
Your tire pressure is too high. Stock tires are supposed to be inflated to around 35psi. Larger tires require less pressure. Drop it to around 25-30 and see if that makes a difference. If not, take it back to the tire shop and have them check the balance again.
07-26-2012, 06:41 AM
#3
JK Enthusiast
Join Date: Jan 2012
Location: Thornton, CO
Posts: 115
Likes: 0
Received 0 Likes
on
0 Posts
Just take it to the tire shop where you got them from. Have them rebalanced. Do you have any weights on the face of the wheels? If there is no weights on the face of the wheels then it's called a static balance and it's not the best way to balance any tire. If all else fails just ask for a road force balance, it puts pressure on the tire to simulate vehicle weight.
07-26-2012, 06:46 AM
#5
JK Enthusiast
07-26-2012, 07:23 AM
#6
JK Freak
Join Date: Jul 2010
Location: Rockwall Texas
Posts: 878
Likes: 0
Received 0 Likes
on
0 Posts
I am running 36psi in my 35x12.50x17 km 2's and regularly run 70-80mph with no issue. I would goback and have them re-balanced, if you see alot of weights bunched up in one spot have them break the tire back down and move it around on the rim. I am getting about 55k out of mine and they lead a pretty hard life.
Trending Topics
07-26-2012, 08:31 AM
#8
clearly a balancing issue... take it back to discount and have them rebalance them. I run basically the same set up without problems but I looked inside of my wheels and there are bunch of weights so these tires must be pretty tricky to balance right.
