« previous next »
Pages: [1]   Go Down

Author Topic: Tire bead troubles  (Read 3086 times)

0 Members and 1 Guest are viewing this topic.

Offline mb3000gt

  • Full Member
  • *
  • Posts: 86
Tire bead troubles
« on: May 12, 2006, 07:02:08 PM »
I just put a new tire on my front rim, but i cant seem to get the bead seated evenly all the way around. any tips?
Logged

Offline ofreen

  • Old Timer
  • ******
  • Posts: 4,010
Re: Tire bead troubles
« Reply #1 on: May 12, 2006, 07:35:48 PM »
What did you use as a mounting lube?
Logged
Greg
'75 CB750F

"I would rather have questions I cannot answer than answers I cannot question." - Dr. Wei-Hock Soon

ElCheapo

  • Guest
Re: Tire bead troubles
« Reply #2 on: May 12, 2006, 07:49:16 PM »
Lube should not be needed really. I was always told never use any liquid lube on tires as it wil almost always rust a rim.

Normally I use WD-40 sparingly to seat a stubborn bead and clean off excess with carb spray.
Logged

Offline mb3000gt

  • Full Member
  • *
  • Posts: 86
Re: Tire bead troubles
« Reply #3 on: May 12, 2006, 08:16:14 PM »
I didnt need any lube to get the tire on. Tried a little wd-40 to get it into place but didnt help.
Logged

Offline ofreen

  • Old Timer
  • ******
  • Posts: 4,010
Re: Tire bead troubles
« Reply #4 on: May 12, 2006, 08:32:44 PM »
Quote from: mb3000gt on May 12, 2006, 08:16:14 PM
I didnt need any lube to get the tire on. Tried a little wd-40 to get it into place but didnt help.

The reason I asked is because a lot of guys will use dish soap or something like that as a mounting lube.  If it dries out in the process of mounting the tire, it can get sticky and keep the bead from seating.  I use a tire mounting lube called Ru-Glide.  It is slick stuff and doesn't do anything weird to the rims, whether steel or aluminum.  It really helps getting the tires on the rim.  You can do most of the mounting with just your hands, usually.  The Ru-Glide then helps the beads to seat.  You can get Ru-Glide at NAPA.  It doesn't take much.  Maybe a tire shop would give you some.
Logged
Greg
'75 CB750F

"I would rather have questions I cannot answer than answers I cannot question." - Dr. Wei-Hock Soon

Offline scondon

  • No way my run was THAT slow, must be an
  • Old Timer
  • ******
  • Posts: 3,137
  • Mmmm......tasty bugs
Re: Tire bead troubles
« Reply #5 on: May 12, 2006, 08:35:32 PM »
Have you tried overinflating? The tube tires on my 750 can take well over 60psi and that usually pops the bead right into place. I do use a bit of soapy water as lube, but I'm not worried about rust with the comstar rims.
Logged
Give me..a frame to build a bike on, and my imagination will build upon that frame

Offline cb350f_rider_73

  • Full Member
  • *
  • Posts: 67
Re: Tire bead troubles
« Reply #6 on: May 12, 2006, 11:39:03 PM »
Inflating the tire then bouncing it on the ground will sometimes help reseat a tire as well. 

Logged
1966 Honda CL77 Scrambler
1973 Honda CB350F (see avatar)
1979 Yamaha XS11 Special "The Beast"

Offline Paul

  • Hot Shot
  • ***
  • Posts: 292
Re: Tire bead troubles
« Reply #7 on: May 13, 2006, 05:06:00 AM »
Just on the off chance, what condition is the inner strip to protect the tube from the spokes, I had a tyre that wouldn't seat - turns out shop had used duck tape instead of the rubber strip and this was catching the tyre edge.
Logged
Paul.
It hurts to admit when you've made mistakes, But when the're big enough, the pain only lasts a second

Offline Bodi

  • Really Old Timer ...
  • *******
  • Posts: 5,695
Re: Tire bead troubles
« Reply #8 on: May 13, 2006, 06:07:09 PM »
I think the insides of steel rims are goig to rust regardless of what you use as lube. Unless you never park to ride in rain - or wash the bike with water - some moisture will get past the spokes.
Anyway, I've used soapy water and store-bought tire lube on every tire change. Rust is there but not severe. I would not use WD40 or any similar chemical, it could deteriorate the rubber.
Tubeless tires on tube rims are hard to seat properly. The tubeless rim profile is different and the tire bead is different from tube-type tires. The difference between seating a tube type tire and a tubeless (on a tube rim) is night and day.
I use lube, inflate to about 25psi and then whack the heck out of the tire all around with a rubber mallet. Then I inflate to whatever the sidewall listed max pressure is plus 10psi (sidewall pressure is "cold" and a tire will always increase pressure as it heats during use so 10psi more is safe) and whack it some more. This usually seats the bead evenly but if not I deflate it, break the bead off the rim, and try again.
Logged

Offline mb3000gt

  • Full Member
  • *
  • Posts: 86
Re: Tire bead troubles
« Reply #9 on: May 13, 2006, 07:57:06 PM »
Thanks for all the tips. i ended up using some tie downs to help get everything lined up.
Logged

Offline Bob Wessner

  • "Carbs Suck!"
  • Really Old Timer ...
  • *******
  • Posts: 10,079
Re: Tire bead troubles
« Reply #10 on: May 13, 2006, 07:59:35 PM »
Quote
Thanks for all the tips. i ended up using some tie downs to help get everything lined up.

Could you explain this in a bit more detail? It might help me/others in the future. Thanks.
Logged
We'll all be someone else's PO some day.

Offline nk140

  • Enthusiast
  • **
  • Posts: 116
Re: Tire bead troubles
« Reply #11 on: March 21, 2011, 04:52:40 AM »
I am bringing this thread back from the dead.

I am am having trouble getting the bead to set on one section of my front tire.  I have over inflated it to 52 PSI, lubed it with soapy water then tried WD-40, bounced it, used a ratchet strap, and hit it with a rubber mallet.  I am wondering if I should try and take the tire off the rim and start again.  Any help will be much appreciated.
Logged

Offline ofreen

  • Old Timer
  • ******
  • Posts: 4,010
Re: Tire bead troubles
« Reply #12 on: March 21, 2011, 10:01:10 AM »
RuGlide still works as well today as it did 5 years ago.
Logged
Greg
'75 CB750F

"I would rather have questions I cannot answer than answers I cannot question." - Dr. Wei-Hock Soon

Offline Gaither

  • Hot Shot
  • ***
  • Posts: 635
  • '77 CB550F
Re: Tire bead troubles
« Reply #13 on: March 21, 2011, 03:42:51 PM »
FWIW

I've used WD-40 in the past as "rust protection" only to later find RUST!!

WD-40 attracts and blends very well with moisture. 
Logged
Gaither ('77 CB550F)

Offline nk140

  • Enthusiast
  • **
  • Posts: 116
Re: Tire bead troubles
« Reply #14 on: March 23, 2011, 05:58:53 AM »
Could the tube size I am running be too small?  I have a 90/90/18 avon roadrider front tire and a 2.75/3.0 tube.  The spot that won't seat is directly opposite the valve stem.
Logged

Offline Bodi

  • Really Old Timer ...
  • *******
  • Posts: 5,695
Re: Tire bead troubles
« Reply #15 on: March 23, 2011, 06:23:24 AM »
The usual problem is from mounting a tubeless type tire on a tube type rim. This is fine as far as the wheel and tire go as long as you use a tube and derate the speed rating one step. Good luck finding any tube type tires except really cheap and hard eastern stuff.
The tube type rim profile is a different shape from a tubeless rim and the tubeless tire bead is really tight on the tube rim. They are real buggers to get seated properly. Using lube, overinflating, and whacking the tire with a rubber mallet or baseball bat should get the bead seated. Look for the bead lines around the tire to be the same dstance from the rim edge all around the wheel.
Logged

Offline nk140

  • Enthusiast
  • **
  • Posts: 116
Re: Tire bead troubles
« Reply #16 on: March 23, 2011, 06:32:37 AM »
Quote from: Bodi on March 23, 2011, 06:23:24 AM
The usual problem is from mounting a tubeless type tire on a tube type rim. This is fine as far as the wheel and tire go as long as you use a tube and derate the speed rating one step. Good luck finding any tube type tires except really cheap and hard eastern stuff.
The tube type rim profile is a different shape from a tubeless rim and the tubeless tire bead is really tight on the tube rim. They are real buggers to get seated properly. Using lube, overinflating, and whacking the tire with a rubber mallet or baseball bat should get the bead seated. Look for the bead lines around the tire to be the same dstance from the rim edge all around the wheel.

The bead line is slightly off on the side opposite the valve stem, but barely.  I just can't get it to pop into place.
Logged
Pages: [1]   Go Up
« previous next »