Jump to content

Tubed Or Not


dale
 Share

Recommended Posts

 

I know I am going to get shot down in flames but:-

I have two TLR based Hondas, both are currently running X11 Tubelsee tyres with tubes. I have had problems with one tyre not seating properly on the rim in the past, by that I mean the bead partially slipping into the well of the tyre at low pressures. It never caused me any problems ie no punctures, I did remove and re-seat the tyre a couple of times because of this. The previous tubeless tyres I used did not have any problems this way.

My other rim has not had any problems, the only thing I did differently was to put a tube in a new tyre and blow up the tube Hard and leave it in the tyre for a week or so before fitting the tyre.

Why am I using tubeless tyres - basically because I am mean & can buy them cheaper!

Link to comment
Share on other sites

 
 

You don't say whether your TY is a mono or twinshock - I believe they use different rims.

I've fitted my Majesty with an IRC tubeless but it won't stay on the rim all the way around. There is always a section of about 6 inches on one side that slips back into the well (not always in the same place on the rim) I re-inflate to blow it back out but after I start riding it slips in again. It's never dropped right off but I can notice it when riding. I've used the same tyre on Ossa rims with no problems whatsoever so obviously the shape of Akront rims as used by Ossa differ from Yam DID rims where the bead sits.

I've been told that tubeless tyres have a longer and sharper bead edge than tubed type so that they sit deeper into the different shaped bead of a tubless rim. Remove this 'edge' from the bead of a tubeless tyre and it should sit with no problems on a tubed rim. I haven't compared the two myself or tried what is suggested though, so can't comment.

Link to comment
Share on other sites

 
 

Twinshock TY will have the same rim as my Majesty so you may have the same problem with it slipping partially into the well. With Michelins, not sure if you will notice any real advantage fitting a tubless type though. I have a tubed michelin on the Majesty and it works ok.

Only reason I was using tubeless IRC is I prefer IRC to michelin but the tubed IRC has too soft a sidewall for me and rolls around a lot where as the tubeless doesn't (or at least hadn't used to, the last couple I've had feel softer and have started to roll a bit so don't know if they've changed them) With the michelins, the construction feels the same between tubed/tubeless

Link to comment
Share on other sites

 
 
whats the diff between mono and twin shock?  :(

Twin shocks have two rear shock absorbers on the outsite of the rear tire.. and a mono shock is found on new bikes that have one shock in front of the tire that works for the entire rear arm. Here's a pic to show you what I mean:

Twin Shock:

Yamaha%20TY175%20Trials_jpg.jpg

Mono Shock:

Y1984_ty250.jpg

(my Dad had a 250 like that ;) )

Just look at the rear shocks and notice the difference:)

Link to comment
Share on other sites

 
 
Cheers for clearing that up  ;)

My dad also has a 250 exactly like that and i ride a 175 :unsure:

No Problem Eddy :unsure:

That's pretty neat odds we're both had the same bikes it our families!(especially because I live in Canada, and as far as I can tell, you live in the UK?) lol, 175 for life!!

By the way, I just got a new michelin competition trials rear tire for my 175 and it is tubed.. I think if I were to try to put on a tubless, it would leak all the air out through the spokes in about... 1 second? I haven't put the new rear tire on yet, but the bike still has it original on it! And for a 30 year old bike, its rubber is still in great shape.. aside from the fact it has zero give to it and the tired is ROCK HARD! (okay, so it's not THAT great lol) I'll be putting it on in the next week I hope.. So there will be a couple pics of going through that posted.. I have never switched a tire (dad has) so it shouldn't be too hard (the rear tire had been off within the last year to put a new tube in it, I must have ran over a nail or something sharp :( ).

And for your question Dale, I think you could fit a tubeless tire to the rim, but when it comes to filling it with air, it will just leak out if it's not a tubeless rim. I think you could put a tube inside it, but it wouldn't be able to run at low psi without riding on the sides of the tire (hurts just thinking about it!). Good luck and let us know how it works out for you :blink:

Link to comment
Share on other sites

 
And for your question Dale, I think you could fit a tubeless tire to the rim, but when it comes to filling it with air, it will just leak out if it's not a tubeless rim. I think you could put a tube inside it, but it wouldn't be able to run at low psi without riding on the sides of the tire (hurts just thinking about it!). Good luck and let us know how it works out for you biggrin.gif

If it is not a tubeless rim then a tubeless tyre WILL leak - the tube type rim will have no means of sealing the wheel well where the spokes go, in addition the security bolts will leak. You will be wasting time and effort trying this arrangement. Dont even think about trying a tubeless tyre on a tube rim WITHOUT a tube.

Fit a tube to your tubeless tyre along, making sure you have a decent rim tape to protect the tube from punctures due to spokes and remember to fit the security bolts to hold the tyre in place.

Link to comment
Share on other sites

 

Thanks for replies,I was NEVER going to fit a tubeless tyre to a tubed rim without using a tube :( My query was reguarding -would a tubeless tyre stay ON, running 3-4 psi? Still none the wiser :closedeyes: Cheers Dale.

Link to comment
Share on other sites

 

It might stay on at that pressure... But even if you had to run it at like 8 or 10 it wouldn't be that bad.. How many mountains do you intend on climbing!?!?!!! haha just kidding :closedeyes: I don't know if it would stay on at such a low pressure like 3or4psi. If it does, you might also get the walls of the tire wrinkling, which will crack the tire and make it useless in a couple years. It should work though, just try and see what pressure works best for your needs

Link to comment
Share on other sites

 

Dale, thought I'd answered for you (as best I can)

IRC tubeless will stay on an Akront rim at 3 - 4 psi with no problem, but on the Yam rim it slips into the well on one side for a length of about 6 inches. It does this consistently and not always in the same place. This suggests there may be a problem running a tubeless tyre on the Yam rim, although I haven't tried a Michelin. We have run a Michelin tubeless with no problem on an Akront rim.

A friend of mine ran a Michelin tubeless on a Beamish with no problem but no idea of the type of rim on a Beamish.

Only way to be really sure is to try it but it is a gamble of course - it may be ok on your rim, but as I mentioned before, I can't see that a tubeless Michelin with a tube in it is going to offer any advantage over a normal tube type - unless they are coming to you considerably cheaper of course.

Only reason I used the tubeless IRC was because of the different construction (or, more accurately, the apparent difference in sidewall construction to me) which meant the tubeless performed better as I could run it a lower pressure without it rolling on the sidewall.

Link to comment
Share on other sites

 

I fitted a tubeless IRC with tube to the back wheel of my 325 Sherpa it has 2 security bolts in the Akront TC rim positioned opposite each other.

There is a little bit of tyre creep (rotates around the rim slightly) but overall it works very well.

Woody do you by any chance have the security bolts at 90 degrees to each other so leaving a lot of rim unsupported.

The main reason for me buying a tubeless tyre was non availibility of tube type when I needed one.

Link to comment
Share on other sites

 

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
  • Create New...