How To Fix A Bike Puncture On Race Day | Inner Tube Replacement Or Tyre Sealant?

Рет қаралды 27,790

Күн бұрын

Getting a puncture, especially on race day, can be very frustrating. Here is GTN's ultimate guide on how to fix a puncture on the roadside during a triathlon!
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Getting a puncture during a triathlon should not end your race. They can be quick to fix as long as you have the correct tools. There are two main ways to be back on the road quickly and Mark guides you through both of them in this video.
The first is replacing the inner tube and this requires a new inner tube, set of tyre levers and a mini pump (or CO2 cartridge). The key steps to this process are:
- Remove the wheel from the bike
- Check the tyre and remove the cause of the puncture
- Deflate the tyre fully
- Use the tyre levers to remove the tyre from one side of the rim
- Remove the inner tube and check the inside of the tyre for sharp objects
- Add some air to the inner tube and place into the tyre
- Seat the tube and pull the tyre back over the rim being careful not to pinch the tube
- Pump back up to the required pressure
The second option is a temporary but fast fix and that is using a tyre sealant. This will release a liquid latex along with a propane propellant into the tube. This will seal the point of puncture and inflate the tube up to 110 PSI.
These are both great ways to ensure you finish your next triathlon and aren't prevented from finishing by a puncture!
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Пікірлер: 35

@gtn 6 жыл бұрын

What tools do you carry with you on race day? Let us know in the comments below 👇

@willashton5222 6 жыл бұрын

Global Triathlon Network all I need is a pump!

@atlosass 6 жыл бұрын

Two inner tubes, 3 CO2 canisters, the CO2 dispenser, tire levers, & a folding hex wrench (just in case).

@willashton5222 6 жыл бұрын

Anthony Lo Sasso fair enough.

@Aniara64 6 жыл бұрын

Spare inner tube (long valve), extra valve extender, tyre levers, multi-tool, chain-tool, missing link, rear mech hanger, co2, minipump.

@simonaldridge6907 6 жыл бұрын

Just a can of Pitstop.

@panzerveps 6 жыл бұрын

I had a puncture 20 minutes before the start of a race this summer.. Removed the tube, checked the tire, put in a new tube and pumped it up and i got another flat. Turns out I got a rift in the tire while riding to the race. I was lucky, and some stranger borrowed me a spare wheel (which was worth more than my bike...)

@davepratt9909 6 жыл бұрын

If you are using a minipump, be sure to brace the head/valve against something (I use my knee). If you don't there is a chance the you will get excited, pump hard, and damage the valve preventing it from holding air. I've done it and seen others do it too. Once guy actually ripped the valve stem from the tube.

@gtn 6 жыл бұрын

Good tip! We've seen people do this too.

@haxhxm841 6 жыл бұрын

Finally 1/2 video needs (more like a routine as I watch them before I sleep as they always upload at 12am)completed waiting for your sister channel to upload now 😂

@johnmclean7603 6 жыл бұрын

Love the content you are producing o the channel but you seem to be afraid to make longer video's that provide greater detail. I would like to see Mark do a more detailed version of this video. I've changed a lot of punctures and it can be much more difficult to do this on the roadside. I would like to see Mark change the tyre on the road side (like his GCN colleagues) and give advice on how to remove and re-install your rear wheel as it is much more difficult to remove a wheel from the horizontal dropouts on most TT bikes than to remove a wheel from most road bikes. On that point, you want to make sure you have your chain in the proper gear to make it easier to remove and re-install your rear wheel (it should be on the small ring on your crank and on the cassette) and you need to make sure you re-install the chain properly on the cassette when you re-install the wheel. In addition, it can be much more difficult to remove a tyre, depending on the tyres you use. I use the Continental 4000's that Mark uses in the video and they are very easy to remove from the rim - other tyres are not so easy to remove so some advice on how to remove and re-install the tyre onto the rim (especially if you are doing this roadside!) would be helpful for those who are new to changing tyres. Also....if you are using a C02 cartridge it is not obvious how to do it - this is worth its own video! Looking forward to "Fixing a Puncture 2.0."

@felixdominick44 6 жыл бұрын

Way easier when you do sprint distance racing coz you can just call it a day when you puncture

@alpherbetter7405 6 жыл бұрын

Would you need to take the wheel off if you're just pumping in sealant? Should be unnecessary, right? From puncture back to racing in under a minute sounds very enticing. My tools: 2x CO2, CO2 inflater, 2 levers. Mini hex tool. and 1 or tubes depending on race length. I also have a couple of zip ties at in my bento for miscellaneous needs.

@filipsemancak2705 6 жыл бұрын

Can you do more running videos pls? :D

@erockem 6 жыл бұрын

Crank Brothers Speedier Lever for Tire. Impossible to pinch the tube. Takes the tire off in seconds. Re-seats the tire around the wheel in seconds also. Amazon it for $9. Not sure how well it is with carbon, as unfortunately I don't have that problem.

@JS-tb9hu 6 жыл бұрын

Good idea

@liambarber9036 6 жыл бұрын

You make it look way to easy.

@markthrelfall3577 6 жыл бұрын

Liam Sangaku thanks. I have to say, I surprised myself with the pit stop!!

@hydra66 6 жыл бұрын

never used sealant before. after the race, does it come right out or do you need to replace the tyre as well?

@markthrelfall3577 6 жыл бұрын

hydra66 providing the tyre is in ok condition you can keep that. You’ll need to replace the inner tube with a fresh one though. A small cost to get you back up and running quickly

@panzerveps 6 жыл бұрын

If you want to, you can clean the inside of the tire, but it's not vital.

@JS-tb9hu 6 жыл бұрын

If you put sealant in a tubular do you need to replace the tubular after the race?

@CyclingSatan 6 жыл бұрын

J S, No, if you use a product like (Stans no tubes sealant) you can ride with it for as long as the tire holds air. When I ride tubular tires I always put sealant in. Sealants is just a method of adding extra flat protection with very little added weight or lose to performance. You only need to replace the tire if it get worn out or damaged bad enough that sealant cant seal the hole.

@julienc.5949 6 жыл бұрын

I never use the lever to pull back the tyre !!!! It will pinch the tube almost everytime !!!! Gcn and Triathlon Taren explained how to do it by hand !!

@markthrelfall3577 6 жыл бұрын

Julien C. Absolutely. It’s more if you’re having a hard time and in a rush. We’ve all been there haha

@martinsimpson4286 6 жыл бұрын

Are you saying not use your levers to put the tire on? If that is what your saying then I have serious issues because I use 3 tire levers to get 25mm Grand Prix onto my Giant SLR0 wheels!! It is seriously, seriously hard work. I have pulled Vittorias onto Shimano rims before by hand but have found levers necessary on most other wheel/tire combinations.

@julienc.5949 6 жыл бұрын

Exactement !!!! Try this "how to" kzfaq.info/get/bejne/bct5lMRptr_GlJc.html at 7:55 .... works with conti 4000 and dtswiss alloy

@martinsimpson4286 6 жыл бұрын

Well, that was actually very interesting. Thanks for sharing that link! I’ll give that technique at a try next time, which will probably when I have a flat out on the road.. since I just put new tires on!!!

@Timtimzi 6 жыл бұрын

I've used pittstop in tubulars before. It doesn't work on bigger cuts or pinch punctures from my experience. Moral of story? Don't get a puncture on race day xD .