changing a tyre on a rim

jonohall · 29-12-2006, 07:57 PM

OK guys. got a couple of tyres in the garage and i wanted to make use of them. So i got the old tyre off my stock 15 inch steel rims (EL falcon). And with some trouble i got the newish tyre half way on. Its been a **** of an undertaking. I've been using a couple of tyre levers which are starting to bend and the tyre is suffering also. Are there any tricks to this?? I watched a guy on you tube do it with ease pretty much.

Also there is this machine...http://cgi.ebay.com.au/Portable-tyre...QQcmdZViewItem

does anyone have one. will they make the task easy?

thanks! - dont have a spare atm

DEVL-XR · 30-12-2006, 09:52 AM

man just take it to a tyre place and get them to fit it. they have a machine and i'm pretty sure they use a special glue.
and i thought i was tight on paying people to do stuff!!!!

Magna · 30-12-2006, 09:57 AM

yeah I was looking at a tyre thing too, but just to get old tyres off rims. with a new tyre it needs to be balanced so its better to get the pros in.

MacGyver · 30-12-2006, 12:19 PM

Costs like $10 to remove, fit and balance a tyre. It is not worth the hassle.

Aaron_EF8 · 30-12-2006, 01:47 PM

The sidewalls are meant to bend when you use tyre levers. You can get 15" tyres on/off with a decent pair of tyre levers. It depends on the type of tyre levers you use, but generally all you do is put the tyre levers close together under the rim to pop the tyre onto the rim. The inside of the bead will probably tear off a bit, especially if they're not brand new tyres, but this is pretty unavoidable. You should see how much bead comes off when you use a machine to remove a tyre from a steel rim.

Anything bigger than 15" and I would just take it to get done properly, low profile tyres have much stiffer sidewalls, and 18" or bigger you should have 2 people on the machine changing each tyre.

Tyres aren't held on by glue, the air pressure pushes the sidewalls over the safety beads built into the rim. The stuff they paint around the tyre bead is lubricant to help the bead pop off better.

DEVL-XR · 30-12-2006, 03:03 PM

Quote:

Originally Posted by Aaron_EF8

Tyres aren't held on by glue, the air pressure pushes the sidewalls over the safety beads built into the rim. The stuff they paint around the tyre bead is lubricant to help the bead pop off better.

Ahh is that what it is!! last tyres i got i seen the guy painting something onto it, i just assumed it must have been some type of glue to help it sit in place. well corrected!

:

peyote · 30-12-2006, 04:16 PM

Quote:

Originally Posted by BradensEBxr6

Ahh is that what it is!! last tyres i got i seen the guy painting something onto it, i just assumed it must have been some type of glue to help it sit in place. well corrected!

:

it's not glue its soapy water,it helps the bead pop onto the rim when you pump it up

BENT_8 · 31-12-2006, 01:10 AM

Its fairly easy mate, i used to do mine all the time.

Start with the rim on the ground with the outside facing up.
Hold the tyre with two hands and bang it down hard on the rim at the top and push it right down so the bead is in the hollow in the centre of the rim.
You should have half the bead over the rim and the tyre at 45*
Now use a rubber mallet and some washing up liquid and belt the bead until it slips over the rim.
Now you will have one side on the idea is th push as hard as you can on one edge of the tyre and get it inside the rim and down into the hollow.
Pull the tyre tight into the hollow and get as much bead in as possible
Now belt the remaining bead with the mallet using the W/U liquid.

The key to getting them on easy is getting the first part of each bead into the centre of the rim where the circumfrence is smaller allowing more flex at the remaining bead.
Its hard to explain it in writing, i hope this helps.