Garfield2010 Posted February 26, 2014 Share Hi there I need to take a spare tubbie with for Ironman. What tubbie can you recommend that is easy to stretch and put on should I puncture. Also can I stretch it (and how) beforehand to make it easier to put on? Should I glue it and vacuum pack it as well or how should I go to work? Obviously if I puncture and use the replacement I will be careful riding on it as the glue will be wet etc. Thx Link to comment Share on other sites More sharing options...
Cellar Posted February 26, 2014 Share Hi there Also can I stretch it (and how) beforehand to make it easier to put on? Put it on a wheel. Like you normally would. Ride it a bit. Take it off, fold it up and you're good to go. It is now pre-stretched, and the glue will adhere to the rim when you stick it on after 97 kms. Garfield2010 1 Link to comment Share on other sites More sharing options...
Wannabe Posted February 26, 2014 Share Not a lot of experience with Tubbies, but what I found out is that you can basicaly use any Tubby, just pre stretch it by placing it on the rim and inflate and let it stand overnight. You obviously need a rim that does not have a tyre on yet.No need to use glue, you can get the tape that works a lot faster, is easier to apply and also not messy like glue. As far as I understand, you can also use it immediately. But why do you not Google / Youtube it, I'm quite sure you'll get real expert advice there. Garfield2010 1 Link to comment Share on other sites More sharing options...
Jakkals. Posted February 26, 2014 Share Glue it, put it on, ride it for a week and take it off. It will be fine to just put it on during the IM. Cellar and Garfield2010 2 Link to comment Share on other sites More sharing options...
Grantc Posted February 27, 2014 Share happened to me last year on seaview roadtook the punctured one of - bit of glue on the rim and loaded the new one took 15min to replace and then rode ultra cautious because of the wet glue ride time (including down time) 45min slower than planned, run time an hour faster so I now have my ride run strategy for this year Garfield2010 and DJR 2 Link to comment Share on other sites More sharing options...
Garfield2010 Posted February 27, 2014 Share Well to start off I will put new Tubbies on the week before to minimise the chance of a puncture. Apparently they also clean the roads so chances should be minimum for a puncture (if you stay in the road) I wonder percentage wise how many guys flat per year..... And from those percentages I wonder how many of those flats are tubbies. Link to comment Share on other sites More sharing options...
kennyg Posted February 27, 2014 Share As the others said. Pre-stretch the tubby, put it on a rim over-night, pumped to full cap. During your pre-stretch exercise, try rip unglued/untapped but pumped tubby off rim. Its tough, borderline impossible Then for IM. I would vacuum pack, and add some tubby tape. If you puncture, clean a few spots 6 or so 5cm long, rubbing your thumb down the rim is good enough. Add tyre and go. I have ridden tubbies 26000 kms in 5 years( MTB + Road), walked 3 times, with punctures that sealant wouldn't close, all MTB, all with thorns/nails that have entered in the tread and exited the top portion of the side wall, then normally ripped a fair portion of the sidewall when passing through the frame. Road, the heavy duty sealant works well, once or twice I have had to stop and bomb/pump a second time, but never had to walk or phone a friend. Maybe 3-5 mins loss in time, vs 8-12 to pull a glued or taped tubby and replace. SwissVan 1 Link to comment Share on other sites More sharing options...
atilla Posted February 27, 2014 Share Hi Garfield, You then just take your old tubbies and fold them up neatly and take one with you. They are pre-stretched offcourse because they were on your rims. When you do get a flat (hope you dont) you take the flat tubby off. This can be difficult sometimes because of the glue. So what i do (and suggest) i leave a small 5cm space/gap exactly opposite the valve with no glue when i put the tyres on initially before the race. This allows you to get the tyre started and the you just put your weight into into it. You put the new tyre on and bomb. The glue that is left on the rim and the new tubby that you put on will be more than sufficient to hold the tubby in place. You will not be able to corner at 50km/h on a very sharp bend. If you get used to changing a tubby it is ALOT faster than a clincher and this whole process can be done in 1minute!! Martin PJ and SwissVan 2 Link to comment Share on other sites More sharing options...
SwissVan Posted February 27, 2014 Share Road, the heavy duty sealant works well, once or twice I have had to stop and bomb/pump a second time, but never had to walk or phone a friend. Maybe 3-5 mins loss in time, vs 8-12 to pull a glued or taped tubby and replace. GR8 advice, what's the name of this road tubby sealant you use? Link to comment Share on other sites More sharing options...
kennyg Posted February 27, 2014 Share GR8 advice, what's the name of this road tubby sealant you use? Tufo Extreme SwissVan 1 Link to comment Share on other sites More sharing options...
Garfield2010 Posted March 11, 2014 Share Ok so I have put around 1,500 - 2,000km's on my GP4000 tubbies. I will now fit my new Tufos and then take one used tubbie as a spare. It should be stretched out to make refitment easy... Link to comment Share on other sites More sharing options...
NotSoBigBen Posted August 13, 2015 Share I know this is an old thread but just some advice needed :- 1) Is it OK to use the same sealant that one uses for MTB tires2) How much per tire is suggested Link to comment Share on other sites More sharing options...
Bassman Posted August 13, 2015 Share I know this is an old thread but just some advice needed :- 1) Is it OK to use the same sealant that one uses for MTB tires2) How much per tire is suggestedStans has worked well for me. I put about 50ml in a 25mm tire. Link to comment Share on other sites More sharing options...
NotSoBigBen Posted August 13, 2015 Share Stans has worked well for me. I put about 50ml in a 25mm tire. Thanks mate, off to do it now! Link to comment Share on other sites More sharing options...
jcza Posted August 13, 2015 Share I know this is an old thread but just some advice needed :- 1) Is it OK to use the same sealant that one uses for MTB tires2) How much per tire is suggested No, because of the higher pressure MTB sealant does not work. I carry a can of tyreweld and find that it gets me home. Link to comment Share on other sites More sharing options...
eddy Posted August 13, 2015 Share Also, please make sure that when you put the new tubbie on, you inflate it properly. The pressure will help to keep it on. I have rolled a tyre off the rim going around a corner. Lots of guys laughed, but I found it less than funny at the time Link to comment Share on other sites More sharing options...
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