Fitting my new rear tyre, what a ...

...... fucking ballache!

Did the front one a few weeks back on the CB, not too much hassle but
it wouldnt seat on the beads and i brought it to my friendly localish
place and he sorted it and then balanced it too.

Did the rear one yesterday, same bleeding problem, I dont have access
to a proper compressor which doesnt help so thought id try the local
garage, theres one with a proper trigger air line rather than one of
those ones you set the pressure to. of course its broke!

so next one, i set it to 50 psi, (label says dont exceed 57) and it
seemed ok, then i let it down and it was obvious that it wasnt sitting
quite right on the rim, ie the out of the tyre wall wasnt coming right
out the the inner of the rim :-(
All this was done with the valve removed then with it back in, no
change.

So, plan is bring the wheel to my friendly local, though i may try the
new place in kempston in the morning as they open at 8am, or the other
place i had the front done at.

But is there a knack or some other trick im missing?

As an aside, i noticed that the rear wheel had no balancing weights on
it and looks like it never did, is this common and the fronts just more
important? It rode fine.

 

You are using tyre soap, aren't you?

 

Anger therapy

 

Krusty said:

yep

 

Why??
Water soluble lubricant, and inflate.
The magic does the rest.

--
Greybeard

FLHR -03 UK (95 cu-in Stg 2. Big Boy 2!)

Garmin Zumo 550, To get me home!

ukrm@foxtails[dot]co[dot]uk

 

Sometimes the bead won't seat well enough to actually hold air. A good
bounce on the floor a few times often helps, but sometimes a hefty
twatting is needed.

 

Adrian said:

hmmmmmmmmmm
when i described inflating the tyre to 50psi it is actually holding air.

but when i then deflate it, part of the tyre moves back into the well,
does that make sense?

 

Sounds like you need to take the pressure up a bit higher to get it to
seat properly. Mebbe a slather more lubricant if you can?

 

Adrian said:

Definite. but the wall of the tyre seemed twisted as it didnt all seem
to be coming out of the well completely. Its difficult to describe.

if you imagine the wheel flat on the ground. then see where it says
"Bridgestone" on the wall of the tyre.
ok, if you imagine a line underlining the work bridgestone, this line
should be an equal distance from the edge of the rim say 1cm.

if i inflate to 50psi, the bottom of the b is right on the rim, the e
on the other end is 1 to 1.5 cm off the rim. not sure if that makes
sense.

i think you may have hit the nail on the head with that.

 

I generally find it needs 60+ psi to seat properly.

 

Old trick used by roadside truck tyre fitters.
Two teaspoons of petrol [1], a blast of air to vaporise, throw match.
BLAM.
Tyre neatly beaded.

[1] About an eggcup for a truck tyre so 2 teaspoons should be OK for a
bike tyre.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique,
typed

Please video this if you try it.

--
Wicked Uncle Nigel - "He's hopeless, but he's honest"

I have already made the greatest contribution to the fight against climate
change that I can make: I have decided not to breed. Now quit bugging me and
go and talk to the Catholics.

 

said:

LOL, yes ive seen the youtube clips LOL

 

The Older Gentleman said:

hmmm think ill try a load more tyre soap tomorrow and 60psi then

 

I don't know why you bother doing them yourself when Chris at Bedford
Bike and Car Centre on Kingfisher Wharf charges a minimal amount to fit
tyres you take in to loose wheels.

 

I see,

Never had that problem. The bouncing sorts it, but you doo need a high
volume compressor to seat the bead sometimes.

--
Greybeard

FLHR -03 UK (95 cu-in Stg 2. Big Boy 2!)

Garmin Zumo 550, To get me home!

ukrm@foxtails[dot]co[dot]uk

 

Here is how to get the tyres to the tyre shop.

http://thereifixedit.com/2009/07/31/epic-kludge-photo-tire-transport/

 

Lozzo said:

Wanted to see if i could do it i guess, think ill go to Bike and Car
centre next time then.

 

I'd highly recommend Bedford Wheels

http://www.bedford-wheels.co.uk/
--
Adie
(replace spam with nickname to reply)

UKRM FAQ: http://www.ukrm.info/faq/

YZF-R1 : FZ1N : RD350LC
(anyone would think I was partial to Yamahas)
keeper of the FAQ for my sins
MRO#11 BOTAFOF#7 BOTAFOT#130 DIAABTCOD#17 MIB#24 YTC#16
BOB#15 ex-UKRMMA#22 BOMB#11

 

Adie said:

ooooh, christ thats only half a mile from my front door!