Holeshot Biofibre Tyre Sealant - MTB, Road & Gravel, 500 ml

Been running tubeless for quite a few years now and Stan’s has always been my Go To brand for tyre sealant, but my gripe with Stans is that you can’t (or at least I can’t) inject the fluid through the valve stem after the tyre is in place. This means it can get a little messy pouring the fluid into the tyre then refitting it before blasting the tyre onto the rim which is a pain as you have to seat the tyre in order to make sure it seals properly, then break the tyre bead again, pull on side of the tyre off, pour in the sealant and repeat the seating process again. Not with Peaty’s though. Blow the tyre onto the rim, remove the valve core, pour in the sealant using the handy rubber tube they supply and reinflate. Job done. Haven’t noticed any punctures so it must be doing its job. Easy to clean up as well if you happen to spill….

Peaty’s Holeshot tyre sealant… okay, this is one of those products that’s doing something kind of amazing, and most people don’t even realise it’s happening. So inside your tyre, you’ve got this liquid just… moving around. Quietly. Waiting. And the moment something goes wrong—a puncture, a tear—it reacts. Instantly. It rushes to the problem and seals it. Like a defensive response. Like the system protecting itself. And I think that’s kind of incredible. You’re riding, everything feels normal, and something could have stopped you—but it doesn’t. Because this is in there, doing its job without you even noticing. That’s trust. You’re relying on something you can’t see, and it comes through for you. The consistency is really well judged. Not too thick, not too thin—it flows properly, coats the inside of the tyre, reaches where it needs to go. It’s… adaptive. It responds to the environment inside the tyre in real time. And it handles a lot. Small punctures, thorns, debris—you’d expect issues, but it just… resolves them. Quietly. Efficiently. You keep riding. The system stays intact. There’s also something reassuring about knowing it’s there. Like you’re not alone out on the trail. There’s this layer of protection working with you, keeping things balanced, keeping things moving. And I think people overlook that. They focus on tyres, wheels, pressure—but this? This is part of the ecosystem too. It’s what keeps everything functioning when things don’t go perfectly. Overall: responsive, reliable, and quietly protective. It works in the background, maintaining balance and flow when it matters most. And honestly… I think that’s something worth appreciating.

What can I say about this product. I was tubeless virgin, I borrowed a bike a few years ago that was tubeless, it was a royal pain to true and blow up and seal the tyre that had burped on me. Move on 5 years and after purchasing my own bike that is tubeless ready I purchased Peatys on the reccomendation of my brother. Well I could not be any happier, simple tuse, much cleaner than a lot of the competition and in my opinion, it seems to last longer between topups. Which for me as a light user of my bike is brilliant. Nothing more annoying than having to top up everytime I want to go out on the bike. Peaty's solves all of that for me. 10/10

Lets be honest - you put this in your tyres and hope that you never see it again as you won't get a puncture. I have put it in some MTB tyres and so far it hasn't let me down - but I have had no punctures so far Needed to shake thoroughly to evenly distribute the blue bead bits before injecting but easy to inject - a little bit of mess (more me than the product I suspect) and easy to wipe up Big bottle and quite good value

I have used this before on a previous puncture a couple of months ago,and my tyre is still inflated,I have a new puncture on my front tyre, and again I have used Holeshot as I trust it.I now its a bit pricey,but it does the job!

Second time of purchasing, never had any issues

Spot on ,used on gazelle bike with road tyres and the small valve so needed to use a syringe to insert the liquid 😉 Spun the wheel up to circulate then inflated and spun for 30minutes Next day the tyre was still fully inflated Brilliant product 120ml was perfect for 2 wheels

I used to run an insurance company that insured commercial vehicles. We tried to keep up with all the international accident research as we invested heavily in accident prevention [probably why we ended up losing money!] A load of it pointed to punctures being responsible for a high proportion of vehicle accidents. We started discussions with a number of tyre sealant manufacturers. They all claimed their sealant would last the life of the tyre [If you don't believe me, just look at the FAQ's on the Ultraseal tyre sealant website] A couple of years ago, I bought a bike fitted with tubeless tyres. It had sealant installed because it used to spray out of the valve when I came to top the air up. Given my past experience with tyre sealant companies, I expected the sealant to last the life of the tyre so I've never topped it up. Recently my front tyre started to go down and I couldn't find a puncture. Some research on the internet revealed that this was probably due to general air leakage because the sealant had gone off inside the tyre. I did quite a bit of research and ended up choosing Peaty's. a) it's supposed to play nice with other sealants [apparently some don't mix well together] b) it's supposed to not harm the environment and sadly, c) I was also looking for one made in the UK [buying stuff made in the UK is important to me because, if I don't look after someone else's job, why should I expect them to look after mine?] I installed it today. It was not mess-free. I got it over the patio, the bike and myself. I'm not sure how well it will work as I think I should have shaken the bag before decanting into the syringe (I had expected the bag to screw onto the valve sleeve so that I didn't need the syringe but it didn't). Because I didn't shake the bag I've been left with loads of bits at the bottom of the bag where they'll not do a lot of good because they should be in the tyre! My point, however, is that this is a job I shouldn't have needed to do in the first instance. The sealant should last the life of the tyre - like it does with car tyres. If they can make a sealant that will survive use in a Humvee or a piece of construction plant for the life of the tyre, why can't they make one that will survive the life of a cycle tyre? It reminds me of the story of the shampoo manufacturer who asked his marketing guys how he could sell more shampoo. The answer: "...add rinse and repeat..." to the instructions on the label.

The best sealant I have ever used. It doesn’t go hard inside and it works even after 5months

Peaty's Holeshot Biofibre Tubeless Tyre Sealant VS Stan's NoTubes Tire Sealant, Slime Tubeless Bike Tire Sealant , WTB Tubeless Bike Tire Sealant OKO Magic Milk Hi-Fibre with so many options, conflicting reviews, and marketing claims makes it hard to tell who makes the best of the best Tire Sealant without testing each one separately in a lab environment or spending hours on Google & YouTube trying to figure out who make's the best Tyer sealant on the market. It comes down to information overload grrrrr! Spin me around like a top and point me in the right direction! All I want to know is who makes the best tubeless tyre sealant? Sound familiar? If you can say yes, then you're not alone! I like Peaty's Holeshot Biofibre Tubeless Tyre Sealant. It cleans up well. I can't say how well it seals minor or major wholes. Going tubeless setup gives me a little bit of security will on the open road and the occasional off road. Pros Seals super fast and securely on holes up to 8mm Coats porous tires really well Black glitter shows it’s shaken enough Biodegradable Wide working temp and pressure range Doesn’t smell of urinals Cons Glitter haters will still hate Slow through some valves Footnote If you’re happy with Peaty’s and don’t have sealing issues, there’s no strong reason to switch. But if you want the most proven all-rounder, Stan’s is the default choice for a reason.

Like many, I started with Orange Seal and then Stan's sealants. Orange Seal changed their formulation, and I found it not as effective. Stan's was okay, but the lack of viscosity means it tends to bleed through supple tire casings more frequently (and continuously). Overall, I think Silca's sealant provides some of the best overall sealing power. That said, not being able to inject it in the valve stem is a big limitation (and it tends to clog valve stems over time, and dries into a big glob in your tire faster). Muc-Off is another sealant I've had good luck with as well... longer lasting than most. Peaty's has been a great overall balance for me. Injecting it directly from the bottle has been easy for initial installation (and follow up top offs), and I've found it to be effective at stopping leaks. Generally it stops leaking through on supple casing tires... I've been happy with it.

Excellent fix for a puncture though no tube to valve connexion provided. as .is doesn't fit from the bag

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