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TigerWax |
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TigerWax Derestricted Danger
Joined: 04 Sep 2018 Karma :
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Posted: 10:39 - 19 Sep 2018 Post subject: Seating Tubeless tyres |
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Hi all,
So I have taken one tiny step to getting my YBR 125 Custom back on the road! Last night I attempted my first tyre change!
It took me about an hour and a half but I managed to get the old Mitas off the rear rim, replace the valve and get the new Michellin City Pro on.
Unfortunately things went less well when I got to the Tesco petrol station to try and pump the rear up (Currently I do not own a pump of any description). The videos I watched on the subject were a bit less detail rich on getting the tyre pumped up so I kind of assumed that just whacking the air machine up at petrol station would be sufficient to get it going but it would appear I was wrong about that (it went up to 80PSI maybe this is not enough?). I had removed the core from the valve and attempted to turn and bounce the tyre as I went but to be honest the tyre seems massively loose on the rim at the moment and I guess the bouncing thing is more for when you have a small gap.
Having spent a bit of time searching on the internet I have learnt that there is a lot of information around tubless tyres for mountain bikes and what I can find about motorbikes seems to be hit and miss.
I have seen two techniques on YouTube for seating beads: one involves lighter fluid and an explosion (so that's out as I prefer my eyebrows on my face) and the other involves a ratchet strap.
So as it stands I think I have a couple of options:
- Buy a ratchet strap and hope that it pushes the sidewalls out enough (and combined with more tyre paste) that the Tesco garage air pump will be able to finish the job
- Buy an inner tube for the tyre and use it tubed (didn't realise that I could use a tubed tyre on a tubeless rim until I took the Mitas off and found I have been using an inner tube the entire time I've had the bike)
- Try and find somewhere to take it to see if they could blow it up (being in the Gatwick area all the tyre places seem to only deal with car tyres and there aren't many bike places locally). In all honesty I was hoping to get it done myself so that I only needed to take one tyre off the bike at a time as I have a center stand and no paddock stands (or even anything that I could use to try and prop the frame)
- Get an air compressor? I have no idea what I need and I'm guessing it's going to be pretty costly
So could I get the opinions of the old hands who have done this before?
what's my best option?
Is the ratchet strap a goer?
Have I missed some option that's going to make this process super easy for pennies?
Thanks! |
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G |
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G The Voice of Reason
Joined: 02 Feb 2002 Karma :
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TigerWax |
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TigerWax Derestricted Danger
Joined: 04 Sep 2018 Karma :
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Polarbear |
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Polarbear Super Spammer
Joined: 24 Feb 2007 Karma :
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Posted: 12:11 - 19 Sep 2018 Post subject: |
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The couple of times I tried to change a motorbike tyre were pretty much a disaster, what could have gone wrong, did.
I had the same problem as you and in the end took it to a garage for a bloke to use their compressed air system to get it on the rim. After the few quid I gave him for a pint for doing it and all the faff and hassle I decided in future I'd just take the wheel and tyre to the tyre place and pay them the £10 or whatever it was to do the whole job.
I do prefer an easy life. ____________________ Triumph Trophy Launch Edition |
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weasley |
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weasley World Chat Champion
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Freddyfruitba... |
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Freddyfruitba... World Chat Champion
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Riejufixing |
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Riejufixing World Chat Champion
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G |
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G The Voice of Reason
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TigerWax |
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TigerWax Derestricted Danger
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Hawkeye1250FA |
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Hawkeye1250FA World Chat Champion
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WD Forte |
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WD Forte World Chat Champion
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MCN |
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MCN Super Spammer
Joined: 22 Jul 2015 Karma :
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Posted: 16:08 - 19 Sep 2018 Post subject: |
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You can squeeze a bike tyre out using a bit of washing line in a noose around the tread.
That and a tourniquet made of a stick, screwdriver etc. will suffice.
Bump the tread as you squeeze.
Then blow the air in. When the bead seals loosen the tourniquet.
Tourniquet goes around the tire not your bicep.
____________________ Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN. |
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MCN |
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MCN Super Spammer
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yen_powell |
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yen_powell World Chat Champion
Joined: 22 Jun 2008 Karma :
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sickpup |
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sickpup Old Timer
Joined: 21 Apr 2004 Karma :
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Posted: 19:34 - 19 Sep 2018 Post subject: |
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G wrote: | You need a high rate of air dumped more than being a high spec compressor. |
Not really.
G wrote: | You can get bead blaster tanks with a 1.5 inch outlet to let out a 40l tank in well under a second. |
Designed for car tyres not small bike tyres, would likely cause the tyre to jump the rim and cause injury
G wrote: | You need tyre soap on the inner face of the inside of the rim where the tyre will slide along, not just on the bead area.
This both allows it to so slide easiler and creates a better seal to keep air in. |
Or you could just do the tyre.
G wrote: | Get some fire on a stick, or a cooker lighter etc for the 'bangy' solution.
Normal problems I had was it not doing enough, rather than blowing up too much! |
Don't be stupid.
G wrote: | Not that experienced/well equiped, I'd say . |
Look who's talking. The OP is lucky the wheel didn't shatter at 80psi sustained but you didn't notice that bit. IIRC the maximum psi when fitting motorcycle tyres is 48 psi.
A badly stored tyre, one thats been in a stack on its side can be a nightmare to fit for anyone, I have returned tyres like this because they can be dangerous to inflate. |
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The Shaggy D.A. |
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The Shaggy D.A. Super Spammer
Joined: 12 Sep 2008 Karma :
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Posted: 20:26 - 19 Sep 2018 Post subject: |
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I think the rear tyre that was fitted to my YBR had been stored in a stack, as the guy couldn't get it to seat fully and keep air in. Went with a tube in the end. ____________________ Chances are quite high you are not in my Monkeysphere, and I don't care about you. Don't take it personally.
Currently : Royal Enfield 350 Meteor
Previously : CB100N > CB250RS > XJ900F > GT550 > GPZ750R/1000RX > AJS M16 > R100RT > Bullet 500 > CB500 > LS650P > Bullet Electra X & YBR125 > Bullet 350 "Superstar" & YBR125 Custom > Royal Enfield Classic 500 Despatch Limited Edition (28 of 200) & CB Two-Fifty Nighthawk > ER5 |
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MCN |
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MCN Super Spammer
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jaffa90 |
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jaffa90 World Chat Champion
Joined: 06 Apr 2016 Karma :
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Posted: 23:46 - 19 Sep 2018 Post subject: |
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Back in the 70`s with car tyres, resting the tyre on 4 blocks of wood and dancing on the dry rim ( tyre as well) and then turning over still resting the tyre on the wood and then slightly pressing down the rim with full com air. |
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G |
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G The Voice of Reason
Joined: 02 Feb 2002 Karma :
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Posted: 07:04 - 20 Sep 2018 Post subject: |
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Yes, really. Using tankless compressors and tanked ones with higher and lower flow rates; higher flow rate definitely gives you a much better chance.
Quote: |
Designed for car tyres not small bike tyres, would likely cause the tyre to jump the rim and cause injury |
I never got to use the one I ordered, because it had a leak and had to send it back.
Bigger bike tyres at least seem to with hno problems.
https://www.youtube.com/watch?v=owJyyui0PHs
Seems very unlikely the air would flow in the manner you suggest, freely flowing in to the tyre to create enough pressure inside the tyre to blow it off the rim, rather than when flowing freely in the open air, to just not enter the tyre when the pressure is that high.
Quote: |
Or you could just do the tyre.
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You could, but when using a low flow rate compressor, it can make a significant difference to paste the surface the tyre needs to slide over.
This has helped me using smaller and big 12v compressors to seat beads plenty of times.
I wasn't. I was suggesting, with a caveat, to use a technique that has worked for me when I haven't had access to a workshop compressor - as was working for loads of other people - and something I've never seen any reports of injury from when doing it on a motorcylce wheel - though I'm sure it's possible if you're particularly careless with it.
Quote: | The OP is lucky the wheel didn't shatter at 80psi sustained but you didn't notice that bit. IIRC the maximum psi when fitting motorcycle tyres is 48 psi. |
I did notice that but read it the spec of the machine. |
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sickpup |
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sickpup Old Timer
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G The Voice of Reason
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TigerWax |
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TigerWax Derestricted Danger
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colink98 |
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colink98 Could Be A Chat Bot
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sickpup |
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sickpup Old Timer
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sickpup |
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sickpup Old Timer
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Old Thread Alert!
The last post was made 5 years, 212 days ago. Instead of replying here, would creating a new thread be more useful? |
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