one piece wheels

[oakpark619]

I have an older model dm one piece wheel that i was having a hard time with. I was removing the old tire and it seemed like it was glued in there and so when i replaced the tire and it wouldnt hold air, I thought maybe i missed something. My question is the process or steps for changing the tires any different from the new one piece and old one piece wheels? It could just be that the tires been sitting and is maybe a lil old but im not sure so i was wondering you guys thoughts on it. Also what steps should i take to try and eliminate the source of the problem, tires, rims etc. thanks a lot guys.

[Videogamerdaryll]

Look for any marks or bends a tool may have made,if you have a mark on the inner side of the rim you may have to sand it down or file it with a light graded file..

I use Bead Sealer..on the inner side of the tired then fill it with high pressure air...

Once I get it beaded I stick the wheel in water to look for a leak...Lotsof time it's the stem,twisting it sommetimes helps.I replace them with a screw in type metal stem..


You need a lot of air preasure to bead a tire

If the tire was hard to get on the wire in the tires bead may have benmt or the bead of the tire may have a mark-cut preventing it from sealing..

I use tire spoos with plasric on them,lots of soap,I've used moist bar soap to slide the tire on..I also use a mini tire charger too


http://www.cycleforums.com/forums/sh...d.php?t=157197

[oakpark619]

thanks i appreciate the help

[oakpark619]

but the guide shows you how to change them out, the problem im having is it wont hold air. I was jw how could i tell well the problem lies, tire, rim, valve. i just ordered new tires and the valves. hopefully that fixes it but how do i know if my rim is too beat up? i guess ill find out soon though, thanks for the help.

[Videogamerdaryll]

What kind of bike are you changing the tire from..

The process is the same but I have never felt it to be easy unless the wheel splits...The tire just has to be in the right spot on the rim to come off and lots of lube..It has to slide on and off or the tire can get gouged at the bead..
If the tires old on a rim might be better to cut it off..If you had a hard time with it there may be parts in the rim that are bent or the inner bead of the tire ripped..

If tire changing isn't done correctly-rushed-really hard to get tire on and off then someone could go through rims and tires trying to do do the job..I've bent rims split tires before it became easier to me,..I still fret doing a tire change..

Chinese bike rims are real easy to bend,ruin in a tire change..


...................................................................
When you fill the rim with at least 100psi push does the tire pop-into the rim,then leak out...?
How fast is the air going out.

You have to figure out where the air is coming out...If it fills and leaks out stick it in water and see where the air is coming out..
That part of the rim may be bent a small cut,slice in the bead of the tire or marks in the rim...

Where the tire edge meets the rim edge it needs to be super clean and super smooth..

I use this stuff it works wonders..
http://www.patchrubber.com/tire_repair/16118.html

Take the tire off again...and look at the insides of the rim where the bead of the tire meets the edge of the rim...
When you take the tire off make sure to jam one side of the tires bead-edge up into the center of the rim,then pull the other side off..If the tire is being stretched the wire may break or bend..I've done it..It takes a good amount of force but I've done it sitting on my kitchen floor..

I use this now....I got it new/cheap off eBay...
http://www2.northerntool.com/auto-re...em-13473-1.htm

No screw drivers..only tire spoons with lots of lube..


Once you get the tire off look at the inner edge of the rim and outer..if you see and marks or bends you'll never seal unless it's smooth..


If your not racing the bike and want to save-use the tires they sell tubes..
Midsouthminimoto sold me a tube for a one piece GRC rim that would hold air with a tire..
I have PMT T41 on it..I use it as an emergency spare..

I only say if your not racing because I don't know how the tire will react with a tube in it at a track..

[Videogamerdaryll]

[oakpark619]

thanks i really appreciate all the input, i know you guys probably get rookie questions like this all the time, sorry.

[Videogamerdaryll]

Your welcome anytime..

We all had to start as a rookie once and ...I'm always here to help as I'd rather have people not get turned away from the sport,get the help they need and have fun..


....
I forgot to add...a friend racer needed to get tires changed quick ,he took the stuff to a lawnmover repair shop and they did it quick..

[C2ABUSER]

I would recommend the tire changer that VGD has. I use the same setup that I got from harbor freight and they work flawless once you pad the iron.