Darkside balancing issues, need advice please

[archerdude]

I put on a toyo 205/55/16 and added 3 Oz of dyna beads and 42psi of air to start. At 55 mph, I get vibration about every 5 seconds, vibrates for 5 to 6 seconds, then starts all over again. Went down to 38 psi and it is a tad less noticeable but still there. I have about 250 miles on this new tire. Any suggestions? I have more dyna beads on hand if needed. Thanks everyone!

[old2soon]

Did you follow the SEQUENCE for reinstall of the wheel? Maybe go up an ounce-ounce and a half on the beads? Is the tire Fully sated in the bead are on both sides? Anything on the tread or sidewall that just Don't look right? Did you maybe pickup a bolt or nail or some such in the tire? RIDE SAFE.

[Pappy!]

More beads certainly will not hurt. Are there any balancing weights still on the wheel? If so remove them.
Try 34-36psi when you get the balance sorted out. Seems to be a sweet spot that most agree on.

[mrgeoff]

I for one use "Ride-On"...It stays as a fluid inside the tire and also balances the tire...also, if you happen to run over a nail and pierce your tire, it will instantly seal the tire...!!! The only thing I find a hassle is when you replace the tire ...Please inform the person doing so that you are using  Ride-On....It stays in a liquid state and can be a little messy...but can be rinsed out with water...!!!I have been using "Ride-On for a few years and have had NO balance problem or flats...!!! Hope you check into it...!!!

[Jess from VA]

More beads certainly will not hurt. Are there any balancing weights still on the wheel? If so remove them.
Try 34-36psi when you get the balance sorted out. Seems to be a sweet spot that most agree on.

[/i][/color]

I don't agree, I like 40psi, and so do a lot of guys.  But I agree with experimenting with pressure to see if it affects vibration (less or stops).

Intermittent vibration is sure not right (doh), and may not be the tire at all.  How'd your wheel bearings feel when you checked them?  You feeling any clunks or thumps in the pegs (bearing)?  What about the dampeners?  Rear caliper? 

I'd have the bike on the jack and spinning the rear wheel looking at it.  And you can start the bike and run it some in gear (carefully) and look. 

[Brian]

I agree with Jess in that it may not be a tire issue.  I did not know dyna beads could be used in a car tire? Ride On is used in my cycle tires, with nothing in the car tire at this time. My dealer mounted and balanced the CT for me. I for one am not a fan of relying on a pour in product to balance a wheel. I know others have had good luck. You did not say if this vibration changes with speed? I would expect a tire balance issue to be noticed more at higher speeds. If it were me I would go back and start all over again with the wheel install checking everything that has been mentioned here and add in checking the u-joint. I have started mounting my own tires and made a wheel balancing stand. You tube has videos on doing the balancing. It's not hard and gives me peace of mind that I started with a balanced wheel rather than relying on a pour in product. I guess I don't trust taking short cuts. As for the rubber dampers in the rear wheel, this may be your issue if this is your first CT. I started feeling a vibration when using the highway pegs, I pull the rear wheel off yearly for the maintenance. I did notice slop in the rubber dampers. I replaced them, vibration is gone. Also, what is the condition of your front tire? Cupping and if the left side is worn could give a weird vibration. Just my two cents. Let us know what the issue was when you get it corrected.

[Steel cowboy]

Vibrations can be caused by many things. Did the dealer install the rear tire on the bike in the proper sequence? ( tighten the 4 bolts that hold the diff. To the swing arm after you tork the axel down). Where the old weights left on the rim when the dyna beads were added to the tire? The rear shocks had to be removed, were the bushings in good condition to be reused? Raise the rear tire off the ground and have someone spin it, is it true. Check for a bubble on the tread or side wall too.

[RDKLL]

I too have a Toyo and I am using Dyna beads. I love it. Just curious what Toyo? I have R1R Proxes in a 205/55-16 version

[da prez]

  Some tires have an alignment mark and directional arrows even if a car tire.  The alignment mark is lined with the valve stem. Look over carefully as some of the marks are small. I have no personal experience with this tire , but before I install , I always check.   F Y I

                                da prez

[archerdude]

thank you all for the input. It may be the sequence when I re-installed the rear wheel. I quess I should go ahead and buy rubber dampners while im at it. I did replace the o rings in the diff and lubed everything up BUT i tightened the axle bolt up last.. maybe thats the issue?

[Tfrank59]

I'm following this thread because I'm just about to go dark side for the first time. I am a little bit nervous about that not only because I've never ridden a motorcycle with a car tire but also is it harder for them to balance a car tire? I'm really way overdue to get my tire changed, I bought the car tire and my current tire is so bald im just about showing cords so I'm going to do it in the next couple of weeks for sure. I just hope the guy won't have issues trying to get it balanced with normal weights on  a tire balancer.

[Jess from VA]

Frank, I have only run Goodyear TripleTreds, and guess what?  Each tire has taken less weights to balance than any rear bike tire I ever used.  My bike shop mounts and balances them for me and do a good job.

Metal valve stems (don't forget).

[Tfrank59]

Yep, got the metal valve stem. Got the CT. Also got a new rotor and OEM brake pads. I also have a new guy who's supposed to be fast, good, and while-you-wait. We'll see!  Just got to get the fat girl on the lift and the wheel off--I'm lazy, and want any chance I can get to ride before the downtime

[The emperor has no clothes]

thank you all for the input. It may be the sequence when I re-installed the rear wheel. I quess I should go ahead and buy rubber dampners while im at it. I did replace the o rings in the diff and lubed everything up BUT i tightened the axle bolt up last.. maybe thats the issue?

I don't think it will cause a vibration, but you need to redo the tightening sequence. Tighten the axle first, then tighten the 4 bolts on the driveshaft / pumpkin connection. If not you will wear your splines out.

[archerdude]

I'm going to do that tonight before I really mess things up!

[The emperor has no clothes]

I'm going to do that tonight before I really mess things up!

As to the vibration. Like some have said earlier, make sure any old weights are removed. I wouldn't go more than 4 oz. of the beads. But I'm curious about it being less vibration with less air pressure. If it was me , I would check it with a different gauge just to make sure. But I would try some different pressures to see how it does. I would go down to 32 lbs. and see how it was. And lastly, there is the possibility that you've just got a bad tire. I had a Shinko that I couldn't shake the vibration.