Re: Death shimmy update


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Posted by Vaughn [99.58.164.72] on Saturday, May 31, 2014 at 10:39:36 :

In Reply to: Death shimmy update posted by Nick [99.100.212.49] on Friday, May 30, 2014 at 20:56:42 :

Ok, 25 pounds is way too low, 45 minimum. Before you balance the tires, take out for a drive for several miles to warm the tires up and work out the flat spot of bias tires. Bring it back home and immediately jack the front tires up off the ground. Working one side at a time, slowly lower the tire and rotate it until it slightly touches the ground as it rotates. Your allowed 1/16 of an inch for an out-of-round condition. If more than that you have to reposition tire and rim. You can true the tire and rim by machine, but it's expensive and if you forget to mark tire and rim when taking the tire off, you're SOL.

Procedure to true:
Tires and rims are not true when produced. Using painter tape, mark the tire when the tire just touches the cement on both sides of the low spot. Mark rim at center point of low spots opposite side (180 degrees). Demount tire and rotate until rim mark is in center of tire marks. You'll have to slide tube around to match. Make sure flap is seated properly, then reassemble.

Forget about balancing, use balancing beads in tube. I have 8 oz. in my tubes running 1100R16's and they rotate as smooth as a car ride using combat rims. A little shake until 25 mph and then they smooth right out. Nice thing about them is they constantly reposition to correct out-of-balance conditions, so you'll never need to rebalance your tires. You'll need 8oz. in the 900/16's according to their chart. You have to fabricate a tool to install in tube. I used a fish tank vacuum and plastic hose that came with it, fit nice right over stem.

http://www.wheelbalancingbeads.com/stainless-steel/



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