How is a tyre fitted to the wheel?

leaskovski

leaskovski

leaskovski

Soldato
Joined
22 Oct 2004
Posts
9,086
Location
Berkland
Ok,

Stupid question time, but can someone explain the process of how a tyre gets fitted to the wheel?

The reason for asking is that I would like to try and understand what the garage has been telling me about my slow puncture that they keep having to correct (for free of course) after a new tyre was fitted.

Cheers
 
its pulled onto the rim using a big hydraulic thing, similar to a tyre leaver for a bicycle just on a much bigger scale :)

if you have a slow puncture your rims might be corroded which causes poor contact between the tyre and the rim, normally a garage will grind down the rim and cover it in a red sticky rim sealant substance.
 
they will push the tyre over the rim with the lever as Will Gill suggests, then put a lever on the next tyre wall whilst rotating the wheel to get that over the lip. Ensuring both tyres are pushed on the bead so they can at least get some seal, they'll then inflate the tyre until it pops right over the bead.
 
well not really, thats if your being gangsta and stretching your tyres.

They use the machine pop one side on then pop the other on and inflate, none of that fannying around.
 
BluZiff said:
well not really, thats if your being gangsta and stretching your tyres.

They use the machine pop one side on then pop the other on and inflate, none of that fannying around.
Click to expand...

I watched 0-44 seconds and it looked about right. I didn't watch the rest, the camera man was too shakey :p
 
Last edited:
DiamondMark said:
Dear god, what is all that nonsense about.
Click to expand...
Scrotes in VW Lupo's on 19" halfords rims and tyres stretched to stupid limits that look pants and must have all the shock absorbancy of ceramic. But I see enough of them to know they like it.
 
Often the wheel rim gets corroded over the years, especially on alloys, so when the seal between the old tyre and rim is broken it can be difficult to get a new tyre to seal properly, usually I wire-brush (only on old corroded rims!) the bead seat of the rim, then apply "bead sealer" (black goo) then this forms a good seal when the tyre is inflated out onto the rim. The only other thing can be the valve can leak around it's base if the hole is corroded too.
 
OK, so I might be gay, but I've always wondered how the tyre remains in contact with the rim. For super mega powerful RWD cars (and FWD for that matter). How the rim doesn't just spin within the tyre, like when you hold the tyre on a radio controlled car and the wheel spins around inside.
 
Lucero said:
OK, so I might be gay, but I've always wondered how the tyre remains in contact with the rim. For super mega powerful RWD cars (and FWD for that matter). How the rim doesn't just spin within the tyre, like when you hold the tyre on a radio controlled car and the wheel spins around inside.
Click to expand...

There is a bead which helps it stay in place.

Edit: Actually, go read more about it here :p
 
Lucero said:
OK, so I might be gay, but I've always wondered how the tyre remains in contact with the rim. For super mega powerful RWD cars (and FWD for that matter). How the rim doesn't just spin within the tyre, like when you hold the tyre on a radio controlled car and the wheel spins around inside.
Click to expand...

Look at a cross section of a tyre fitted to a rim. The tyre bead + pressure is you need (sufficient friction) unless you are running massively low pressures (bead locks) or huge, huge power. The GT-R has knurled seats for the bead, bit of a gimmick.
 
You must log in or register to reply here.
Back
Top Bottom