April 11th, 2015, 05:24 PM | #41 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
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MOTM - Oct '12, Feb '14
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those who like the beads- how out of balance is the tire/wheel combo with no weights, and have you ever ridden one that was unbalanced by more than a couple ounces?
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April 11th, 2015, 05:31 PM | #42 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
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I have removed lead weights, then installed them, and yes I have just to feel the difference with beads installed.
I like the easy installation, and constantly balancing the tire, install and forget for the everyday rider. I'm not a track rider.
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April 11th, 2015, 08:17 PM | #43 |
Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
MOTM - Aug '15
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Yes. Dyna beads work.
But so will sand, lead shot, oil, water, mercury, dirt, really anything that is in small pieces and 2 ounces per rear tire, 1 ounce front. The reason the rest of us use lead weights is because it weighs a lot less that 2 or 1 ounce per wheel. Remember that discussion about unsprung weight? |
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April 11th, 2015, 08:20 PM | #44 |
Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
MOTM - Aug '15
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Not to mention rotational mass moment of inertia...
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April 11th, 2015, 09:22 PM | #45 |
Track Clown
Name: Chris
Location: Kingman, AZ
Join Date: May 2012 Motorcycle(s): '08 250R, 21 MV F3 800, Kawasaki 400 build Posts: A lot.
MOTM - Sep '15
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unsprung weight is a constantly changing variable, as tires wear they get lighter.
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April 11th, 2015, 10:02 PM | #46 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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1/2 ounce vs 2 ounce.... and you're talking about unsprung weight? when the wheel, tire, brakes, and lowers are upwards of 40lbs if not more?
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April 11th, 2015, 10:05 PM | #47 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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dyna beads, sand, water (water is extremely stupid btw, expands at a huge rate when the tire gets hot sending your pressure through the roof) are all fine ways of balancing something moving at a consistent rate. however tires on motorcycles do not move at a consistent rate. you brake. and accelerate. what happens to those mobile weights when this happens? they move. obviously. you are creating temporary imbalances. the only way to have a balanced rotating assembly is to --> BALANCE IT <--
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April 11th, 2015, 11:18 PM | #48 |
cadd cadd cadd
Name: Cadd
Location: 41°21'13.1"N, 74°41'37.4"W
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I am ashamed to say, I ghetto balanced my tires. I mounted the tires on. Balanced them statically using jack stands. I removed the old weight.
I didn't have a new weight. Was too lazy and was to eager to go for a ride that I didn't want to run out to the store to grab some. So what did I do? I reused the old weight. But it was too heavy. I took out my nifty Dremel and started grinding the weight little by little. Within 5 mins, I had a perfectly balanced wheel. The weight just looks like someone chewed on it =)
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April 12th, 2015, 07:19 AM | #49 |
Certified Troublemaker
Name: Teri
Location: Hamilton, NJ
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The beads work fine for me and my BF. We are not track riders and have no intention of becoming track riders. And if that makes a difference then maybe for those of you that do or will be doing track, this may not be for you.
Personally? I'll be using the beads from now on. I have a very good opinion of them.
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Raven's Rejuvenation A bruise is a lesson... and each lesson makes us better... |
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April 12th, 2015, 10:06 AM | #50 | |
Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
MOTM - Aug '15
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Quote:
It's not so much the unsprung mass. It's the rotational mass moment of inertia. And, like you say, the continual going in and out of balance. I'll stick with the static balance and stick-on weights. |
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April 23rd, 2015, 09:56 PM | #51 |
Track Clown
Name: Chris
Location: Kingman, AZ
Join Date: May 2012 Motorcycle(s): '08 250R, 21 MV F3 800, Kawasaki 400 build Posts: A lot.
MOTM - Sep '15
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Finished up using beads in the tires on the BMW. A few things to consider before buying beads:
1. If you have a sophisticated traction control system like the BMW, do not use beads. The traction control light will be flashing the entire time, because if there is any slight change in the rear wheel, the controls come into play. 2. Do not try to put the beads in through the Valve, put the tire on the rim, throw the beads in the the tire, then seat the tire. 3. Riding felt fine, just rode to and from work max speed at 60 mph. |
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April 24th, 2015, 02:35 AM | #52 |
Certified Troublemaker
Name: Teri
Location: Hamilton, NJ
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I know it's a pita to go through the valve but if you put the beads in 1st you could lose them when trying to seat the tire I would think. I could be wrong as I've never done that part my self but I've seen my other half do it and it seems like they may blow out. Especially if your having a hard time or the tire is being particularly stubborn.
Maybe I'm just overly paranoid. Lol
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Raven's Rejuvenation A bruise is a lesson... and each lesson makes us better... |
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April 24th, 2015, 10:08 AM | #53 | |
Track Clown
Name: Chris
Location: Kingman, AZ
Join Date: May 2012 Motorcycle(s): '08 250R, 21 MV F3 800, Kawasaki 400 build Posts: A lot.
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Quote:
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April 24th, 2015, 10:14 AM | #54 |
Certified Troublemaker
Name: Teri
Location: Hamilton, NJ
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Thats good, i still wouldn't personally. But thats me. Like i said, paranoid.
Did the beads not want to got through the valve? Plastic or metal valves? Just curious.
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Raven's Rejuvenation A bruise is a lesson... and each lesson makes us better... |
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April 24th, 2015, 10:22 AM | #55 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
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TPS (Tire Pressure Sensor) systems are normally attached to the valve stem. You don't wanna be messing those up by forcing beads through there. It seems, they mess up often enough on their own without any help from anything else.
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Goal: Shake A Million Hands | Look through the corners | Track Day Prep | Closest track? | The Mid-Ohio School |
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April 24th, 2015, 10:45 AM | #56 |
Track Clown
Name: Chris
Location: Kingman, AZ
Join Date: May 2012 Motorcycle(s): '08 250R, 21 MV F3 800, Kawasaki 400 build Posts: A lot.
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they would not flow in smoothly, they got backed up and it was taking too long to put the beads in. i would have to squeeze the tire with out spraying beads everywhere then rotate the tire to try to suck the beads in through the valve.
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April 24th, 2015, 10:50 AM | #57 |
Certified Troublemaker
Name: Teri
Location: Hamilton, NJ
Join Date: Oct 2012 Motorcycle(s): 2006 Ninja 250r "Pikachu", 2017 Ninja 650 "Epona" Posts: A lot.
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That sounds like the issue we had. Took FOREVER to get them in. My other half thinks if we had put in metal valves instead of the plastic ones it would have helped. thats what he has on his bike and they didn't give him a problem.
Thats our best guess anyway. At least they're in!
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Raven's Rejuvenation A bruise is a lesson... and each lesson makes us better... |
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April 24th, 2015, 07:26 PM | #58 |
Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
MOTM - Aug '15
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Old school lead or iron stick-on weights don't perturbate such problems.
(Yeah, yeah, all hail dyna-beads. Whatever.) |
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April 25th, 2015, 10:29 AM | #59 |
Certified Troublemaker
Name: Teri
Location: Hamilton, NJ
Join Date: Oct 2012 Motorcycle(s): 2006 Ninja 250r "Pikachu", 2017 Ninja 650 "Epona" Posts: A lot.
MOTM - Aug '13, Aug '14, Feb '17
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To each their own, relax.
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Raven's Rejuvenation A bruise is a lesson... and each lesson makes us better... |
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April 25th, 2015, 11:21 AM | #60 | |
in your machine
Name: Scott
Location: Summer Shade, Ky.
Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot.
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Quote:
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violente et ignorantia ZX-2R BLOG Twitter and Instagram = Ghostt_Scott I'm not here to change your mind, just to inform. |
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April 26th, 2015, 10:07 AM | #61 | |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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Quote:
Tip: Take a trip to the mall. In many malls, in the back corner is a store called Spensers. They sell many items that are "adult" only. Maybe you can acquire something there that vibrates as well.
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Goal: Shake A Million Hands | Look through the corners | Track Day Prep | Closest track? | The Mid-Ohio School |
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May 1st, 2015, 05:54 AM | #62 |
Track Clown
Name: Chris
Location: Kingman, AZ
Join Date: May 2012 Motorcycle(s): '08 250R, 21 MV F3 800, Kawasaki 400 build Posts: A lot.
MOTM - Sep '15
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i found time to do some adjustments on the rear wheel and now it is all good. must have been out of alignment, because now my TC is not flashing constantly.
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May 3rd, 2015, 10:01 AM | #63 |
ninjette.org member
Name: Greg
Location: San Antonio
Join Date: Dec 2014 Motorcycle(s): Ninja 300, GSXR-750, Ducati M1100 Posts: 185
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Dyna Beads
I've used the beads in quite a few bikes and they work very well. Never could get the damn things to go through the valve stem though, so I would just add them as I was mounting the tires.
They are not recommended for track use, as the tires will get hot enough that the beads will tend to stick to the inside rather than being free to roll around inside. I still use them on my street bike though. |
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May 3rd, 2015, 05:56 PM | #64 | |
ninjette.org guru
Name: Lee
Location: Monroe, LA
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Quote:
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