ADVrider

Go Back   ADVrider > Bikes > Orange Crush > Crazy-Awesome almost Dakar racers (950/990cc)
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 08-20-2012, 10:39 AM   #1
Deepc OP
Gnarly Adventurer
 
Joined: Apr 2011
Location: St. Petersburg, Florida
Oddometer: 299
Dynabeads

Whos got them? Where did you buy them? How much do you use? I have a 950A and I'm trying to extend the life of my tires.

Thanks,

JB
Deepc is offline   Reply With Quote
Old 08-20-2012, 10:58 AM   #2
ginslung
It'll take.
 
ginslung's Avatar
 
Joined: Mar 2009
Location: Denver
Oddometer: 224
http://www.bestrestproducts.com/c-100-dyna-beads.aspx
ginslung is offline   Reply With Quote
Old 08-20-2012, 11:07 AM   #3
AdvGa
Beastly Adventurer
 
AdvGa's Avatar
 
Joined: Nov 2009
Location: Atlanta Metro
Oddometer: 1,320
If you do use them keep in mind:

Don't use liquid type things in the Tire like Ride On

These products Cake the Beads in the Tire/Tube rendering them useless.


Generally you use about 1 oz in the Front and 2 oz in the Rear.
AdvGa is offline   Reply With Quote
Old 08-20-2012, 12:21 PM   #4
EZ300
Studly Adventurer
 
EZ300's Avatar
 
Joined: Jul 2007
Location: ARIDZONA
Oddometer: 981
I got mine here: http://www.rockymountainatvmc.com/p/...Kit/DYNA+BEADS
I run 2oz front and 2 oz rear in my knobbies.
Works great!
__________________
EZ
AMRA
2007 KTM 990 Adventure
2010 KTM 530 XC-W Six Days
www.rockstarsmc.com
EZ300 is offline   Reply With Quote
Old 08-20-2012, 02:57 PM   #5
Deepc OP
Gnarly Adventurer
 
Joined: Apr 2011
Location: St. Petersburg, Florida
Oddometer: 299
Thanks. I ordered some from rocky mountain atv.
Deepc is offline   Reply With Quote
Old 08-20-2012, 03:03 PM   #6
Balsta
Gnarly Adventurer
 
Joined: Feb 2008
Location: Chilly Northern Europe
Oddometer: 400
Quote:
Originally Posted by ginslung View Post
This sounds like the standard and silly "too good to be true"!
Any scientific studies of serious nature? Cant find any when googling, just sales talk but plenty satisfied users though.
__________________
950 SE -06 with 2009 SDR 130 hp motor (but carbed...120 hp?)

Balsta screwed with this post 08-20-2012 at 03:08 PM
Balsta is offline   Reply With Quote
Old 08-20-2012, 03:07 PM   #7
AdvGa
Beastly Adventurer
 
AdvGa's Avatar
 
Joined: Nov 2009
Location: Atlanta Metro
Oddometer: 1,320
Quote:
Originally Posted by Balsta View Post
This sounds like the standard and silly "too good to be true"!
Any scientific studies of serious nature?
This taken from here:

http://www.bestrestproducts.com/c-100-dyna-beads.aspx


Here's some images to help you understand the process. (Courtesy of Innovative Balancing)


Tire at rest, all beads roll to bottom As tire rolls, beads distribute evenly


Tire moves upward, beads resist Oscillation gets smaller, beads compensate


Tire is vibration free and beads stay in fixed position due to centripetal force. Any extra beads are distributed evenly on either side of the tire. When the tire stops spinning the beads roll to the bottom of the tire. When the tire starts spinning the balancing process starts all over again.

Whew, that's enough techno-speak! Here's the bottom line - Dyna Beads work. We wouldn't sell them if they didn't.
AdvGa is offline   Reply With Quote
Old 08-20-2012, 03:12 PM   #8
Balsta
Gnarly Adventurer
 
Joined: Feb 2008
Location: Chilly Northern Europe
Oddometer: 400
Quote:
Originally Posted by AdvGa View Post
This taken from here:

http://www.bestrestproducts.com/c-100-dyna-beads.aspx

Tire is vibration free and beads stay in fixed position due to centripetal force. Any extra beads are distributed evenly on either side of the tire. When the tire stops spinning the beads roll to the bottom of the tire. When the tire starts spinning the balancing process starts all over again.

Whew, that's enough techno-speak! Here's the bottom line - Dyna Beads work. We wouldn't sell them if they didn't.
...sales talk...yawn...
Whereabout some serious independent stuff?

If this is serious engineering, there is a multimilliondollar automobile market available.

By the way and on the contrary, we are talking about dangerous things occuring here if the filling may cause instabilities at high speed. Just saying
__________________
950 SE -06 with 2009 SDR 130 hp motor (but carbed...120 hp?)

Balsta screwed with this post 08-20-2012 at 03:22 PM
Balsta is offline   Reply With Quote
Old 08-20-2012, 03:38 PM   #9
Katoom119
Mmmm....Orange Kool-aid
 
Katoom119's Avatar
 
Joined: Jun 2007
Location: Knoxville, TN
Oddometer: 1,811
I just put them in my tubeless set and they work. Pulled off about 2 oz. of weight front and rear and with the Dynabeads it's smooth as glass.
__________________
Those who dance are considered crazy by those who do not hear the music.
I am not the same having seen the moon shine on the other side of the world. - Radmacher

5 Cylinders vs. Moab..........My East Tennessee.........Internships may go to Hell and I will go to Alaska
Katoom119 is offline   Reply With Quote
Old 08-20-2012, 04:32 PM   #10
GazzaFish
Studly Adventurer
 
GazzaFish's Avatar
 
Joined: Apr 2007
Location: Melbourne, AUS
Oddometer: 585
Im skeptical... Why wouldnt car dealers use them then?

I would think that centripical(?) force would push the beads to the furthest place from the center and not necessarily anything based on weight. I.e. if you tire was 'out of round' then they would gather in the tall bit and make things worse?

I am obviously basing my comments on absolutely no scientific base at all
GazzaFish is offline   Reply With Quote
Old 08-20-2012, 04:50 PM   #11
smokeeater495
Studly Adventurer
 
smokeeater495's Avatar
 
Joined: Oct 2008
Location: N.E. Indiana
Oddometer: 596
The tires on our Dept.'s fire trucks are powder balanced, same theory. They pour a powdered polymer into the valve stem and it distributes the same as the beads.
__________________
Harley, been there done that. Don't want to be a pirate.
smokeeater495 is offline   Reply With Quote
Old 08-20-2012, 05:19 PM   #12
EZ300
Studly Adventurer
 
EZ300's Avatar
 
Joined: Jul 2007
Location: ARIDZONA
Oddometer: 981
Quote:
Originally Posted by GazzaFish View Post
Im skeptical... How do they work? .................................................( Yes, I messed with your post.)
Hey, how exactly is a rainbow made?
How exactly does the sun set?
How exactly does the posi-trac rear end on a Plymouth work?


- It just does,....It just does.
__________________
EZ
AMRA
2007 KTM 990 Adventure
2010 KTM 530 XC-W Six Days
www.rockstarsmc.com
EZ300 is offline   Reply With Quote
Old 08-20-2012, 05:35 PM   #13
dpforth
no inline fours
 
dpforth's Avatar
 
Joined: Oct 2010
Location: Fantasy, I mean Vancouver Island
Oddometer: 295
I'll admit, I'm skeptical

But the bottle demo impressed me:

__________________
This species has amused itself to death
dpforth is offline   Reply With Quote
Old 08-20-2012, 06:48 PM   #14
bloc
Gnarly Adventurer
 
Joined: Apr 2012
Location: Austin, TX
Oddometer: 158
I used to have a very out-of-balance 33" Mud terrain on a built toyota pickup. 3 shops couldn't balance it. I had shop #4 pop a bead and throw a handful of BBs in there.. and it totally fixed the problem. Now, when I removed the tire 15k miles later, the BBs had chewed up themselves and a portion of the inside of the tire casing, resulting in a nasty dark gray powder & smaller BBs coming out.. but the concept works. Thing is, at slow speeds (offroading) the ceramic or steel balls are free to roll around inside the tire (you could sometimes hear them getting slung up then landing on top of the rim). This should be less of a problem with the smaller diameter (and therefore greater centripetal force per given road speed) wheels on a bike.

It isn't without flaws, but it works.

And, as to why OEMs don't do this on new vehicles? Some (even slight) imbalance is needed to distribute the media in the first place. Can interfere with TPMS systems. Messy when dismounting a tubeless tire. Etc.

bloc screwed with this post 08-20-2012 at 06:56 PM
bloc is offline   Reply With Quote
Old 08-20-2012, 06:55 PM   #15
Katoom119
Mmmm....Orange Kool-aid
 
Katoom119's Avatar
 
Joined: Jun 2007
Location: Knoxville, TN
Oddometer: 1,811
Quote:
Originally Posted by GazzaFish View Post
Im skeptical... Why wouldnt car dealers use them then?

I would think that centripical(?) force would push the beads to the furthest place from the center and not necessarily anything based on weight. I.e. if you tire was 'out of round' then they would gather in the tall bit and make things worse?

I am obviously basing my comments on absolutely no scientific base at all
Furthest point from a circle is the same as all the other points; the tire is not out of round, it's out of balance.

I thought the same things but dang if it doesn't work. I got a C in Physics 1 and 2.
__________________
Those who dance are considered crazy by those who do not hear the music.
I am not the same having seen the moon shine on the other side of the world. - Radmacher

5 Cylinders vs. Moab..........My East Tennessee.........Internships may go to Hell and I will go to Alaska
Katoom119 is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 10:01 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014