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How To Fix A Puncture On A Road Bike | Repair A Roadside Flat Tyre


– There's nothing more deflating than the sound of air escaping from an inner tube when you're riding along So today, let's have a look at how to repair a puncture at the side of the road so that you can continue your ride

So first things first, you want to make sure that you're not on the carriage way or the road whatsoever So get off of that, get yourself on the pavement or in the entrance to a field, anything like that, so you are not in danger of any passing vehicles First up then we want to remove the wheel from the bike, so that's the wheel with the offending puncture And then once that wheel is out of the frame or the forks, you want to try and put the bike somewhere soft or even if there's a fence close by, you could hook the handlebar over that to keep it upright Alternatively, if there's nothing at all soft, I would actually probably advise, this is the only time I would say doing so, is turn the bike upside down so you're not going to risk damaging any carbon dropouts because a little bit of moisture in there, sometimes can actually delaminate the carbon

Now to repair our punctured inner tube, we are going to need a few different tools And thanks to our friends at Topeak I do have a few here with me So I've got myself a CO2 canister, also a pair of tire levers and some well as some glueless patches here Of course, you can replace the whole inner tube, if you so wish, but that's not necessary They're environmentally friendly, because after all, rubber does grow on trees

And also in my back pocket I've got myself a mini pump too, because, well, you can run out of canisters, but you can never run out of air Take a closer look over the wheel, over the tire and try and find any foreign objects, which may have well have penetrated the tire and then gone into that inner tube and given that puncture One of the reasons why we line up logos with valves, is for the reason, if you do find something in the tire, when you remove the inner tube, you know roughly the distance away from the valve where to look in the inner tube for that hole So now we've done that and we've got nothing in the tire You do have to take a little bit of care and attention there, if it's little bit of glass or a thorn, you could well cut your finger

So it's best to do it visually first, and then if you do have a pair of gloves on or something like that, just see if anything gets trapped Then we want to remove half of the bead of the tire There's no need to take the whole tire off, necessarily So grab your tire levers and then it's simply a case of hooking it underneath one part of the bead and then the other one underneath and removing that side of the tire Once the tire's off, you can remove that inner tube from the rim

Now you've removed the tube from the tire and the wheel It's time to try and find out where that hole is Now you could spend a great deal of time looking at the actually tube itself, trying to find it, but generally holes, they tend to be about the size of a pin prick And they're not that easy to find So that's where either your mini pump comes in handy or alternatively even your mouth

Now as gross as it sounds, you can in fact inflate a Presta type valve by simply putting your lips around it and blowing it up You're not going to get up to any sort of pressure, but you may well be able to get it up just enough pressure to find that hole So this is why we are in fact going to use our mini pump and this is one of the reasons why I do always advise taking a pump with you on your ride Just to try and identify where that pesky puncture is Now this hole is absolutely tiny

I did in fact have to inflate the tube by quite a margin, as you can see and then the only way by actually finding it, I had to hold it out to my face and I could feel just tiny little stream of air coming out of that So, I got myself some sandpaper I'm just going to rough up that surface, so that the self-adhesive patch I'd use will work Now before you go ahead and stick that self-adhesive patch onto the inner tube, make sure that the area where you are going to stick it has no grease or moisture on it, otherwise it's not going to do its job effectively So once it is there, make sure, of course, you peel back it ever so carefully and you're not getting your fingerprints all over it, 'cause that could affect the adhesion too

Put it onto the actual tube itself, making sure that the offending hole is in the central most part of that patch Now apply pressure onto the patch for about a minute so that it does stick as well as possible At this point, don't be tempted to apply loads and loads of pressure into the inner tube, to try and check your handiwork because you wouldn't be the first person out there to do it And the patch just come off, 'cause they do take a little bit of time just to well, have a really good joint with the inner tube itself Now before we actually put the inner tube back inside of the carcass of the tire and the rim bed, we actually do want to put a small amount of air into the inner tube, just to give it a little bit of shape, so it doesn't get twisted or anything like that

And also it makes it just a little bit easier to put back inside Put a few pumps of air in, nothing too much Just enough to give it a little bit of shape And then lock that valve down again One final check to do before reinserting that inner tube is just to gently and carefully run your fingers around inside of that tire, trying to find the foreign object that may well have caused that puncture

It's not always going to be in there, but sometimes they do go through Also, check the rim tapes too Make sure that any spoke heads are fully covered up so the spoke nipples also And also pay particular close attention around the valve because quite often if you got yourself an aluminum rim, they can become a little bit sharpened in there and just wear away If you do have a puncture there around a valve, quite often they're very difficult to repair properly

This one though is all okay and we're ready to go ahead and fit that tube again So in goes the valve I always do valve first Some people out there like to finish with the valve But I've always done it with the valve first and while I've done it for donkey's years now and it's simply a case of putting that inner tube inside of the tire

What's important here is it doesn't become twisted or out of shape or anything like that That's why putting those initial few bits of air in, really do help Once it's on, just check around the inside, in between the actual bead of the tire and the inside wall of the rim there And make sure that none of the inner tube is poking out, because if it is, when it comes to putting in more and more pressure, that can quite often give you a pinch puncture and those look like a couple of snake bites, if you like So two holes, pretty close apart, normally about a centimeter apart and that's just the impact of the bead and it's not allowing the tube to fully inflate, of course, is it? And this one, we're all okay

Inner tube fitted and not pinched Now it's time to inflate that inner tube So unscrew your locking nut there on the valve and either use a CO2 canister or a mini pump Now I'm not lazy enough, to be honest, today, it's a beautiful day, to use the CO2 canister So I'm going to use a mini pump

Now I've got a handy little gauge on here too, so I know exactly how much pressure I'm putting in The great thing about using a mini pump actually, in my opinion, something like this, although on a lot of CO2 canisters you can do the same, you can actually control how much air is going in and at the same time, make sure that nothing is getting trapped in between the tire and the side of the rim Now once you have put a decent amount of pressure into the tire, normally around about 40 or 50 psi, you can have a look to make sure the tire is seated onto the rim okay Now an easy way to do that is to use the side wall as an indicator It should look the same all the way around, just above the braking surface or edge of the rim

Like it does on this one If it's not, you can simply wrestle it into position, like so, with your thumbs Its kind of like wiggling it, just allow it to pop into the right place There's no harm in doing it Normally though, just as you inflate it, particularly at home with a Trent pump it would just find its natural position

But when we're out in the road, we don't have that luxury, necessarily, but it's just worth doing it as a precaution Once you're happy that the tire is perfectly seated onto the rim, it's just a case of reinflating that inner tube to your desired pressure before reinserting it into your bike (upbeat music) The final piece of the jigsaw now is just to refit the wheel into position Now I always like to do this without the bike being turned upside down I see loads of people putting in wheels upside down and while my reason for not doing it is that you don't allow the bike to actually find it's natural place onto the axle of a wheel and also it's just not a natural thing to do, is it? Because the loop of the chain on the rear inter alia can often be quite confusing, because it's not in its logical place

So with all that aside then, let's put the wheel into position And on this one here I've got myself a through axle So I'm just going to use the built-in or sort of removable tool if you like to actually torque that up correctly There we are How to fix a puncture on your bike at the side of the road

And you don't even have to use a brand new inner tube How good is that? Right, let me know what you think of this video down there in the comments section below Well also remember to like and share this video with your friends too Give me a big old thumbs up Don't forget to subscribe to the channel and also click that little notification icon so you get alerted each and every time we put a video live on the channel

Also, remember to check out the GCN shop at shopglobalcyclingnetworkcom We've got a whole heap of goodies for you to check out, especially during the month of July And now for two more great videos, how about clicking just down here and just down here and well me, I'm going to carry on with my bike ride

All the best

Source: Youtube

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