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23 comments
When seating tyres the first time I'd recommend using an old valve core from which the one way mechanism has been removed (snap it off with needle nose pliers). The absence of the core's internals allows air to be dumped into the tyre at a much higher rate which makes seating far more likely.
Agree with the others, not deforming the tyre carcase by resting the wheel on the floor also helps.
Top tip. The weight of wheel & tyre deforms an un-inflated tyre where it rests on the ground, and that can prevent the tyre "popping" into the bead, even with an Airshot, or reservoir-type pump. Just hang the tyre up from something before you try inflating it.
I had a sod of a job reseating a WTB Riddler on a WTB rim, using the original innertube (i.e. not going tubeless). In the end it was lubrication and excess pressure.
And for lube the talk is always of fairy liquid (salty) or soap (alkaline). Then I came across Schwalbe Easy Fit Montage Fluid online. Rave reviews. Has anybody tried it? Never heard of it chez road.cc
A very good find.
Now if only there was a simple tool that could help me pop the bead off the rim.
I will be adding that to my next SJS order, always keep a list, small parts to justify the P+P.
Have you tried dousing everything with talc, I used it with tubes to prevent sticking, I'm a user of latex tubes, and perhaps to reduce rolling resistance, but it does help getting tight beads onto the rim, don't know about seating.
My advice would be, don't try this on a nice carpeted surface or indeed any surface you need to keep clean. Sealant is great stuff but it's messy and there is no way to install a tubeless tyre without some milky splashes.
My current technique is to not use sealant and try to inflate and seat the tyre without sealant. If that works, you can pop in sealant through the valve and not make any mess at all.
Very much this.
My 8oz bottle of Endurance Orange Seal came with a tube that goes over the valveless valve for easy filling. I got a big syringe from ebay, cut a small amount of the tube off and stuck it onto the syringe nozzle, now I can suck up the old stuff or new and squirt it in. Only after getting it seated.
once you havee wrestled wih the tubeless install I use the Swiss Milkit kit to top up as alot easier to top up but not cheap at£40
https://www.amazon.co.uk/milKit-Compact-Tubeless-Injector-Valves/dp/B00Y...
https://road.cc/content/review/176166-milkit-tubeless-valve-and-refill-kit
Giant sell a sealant syringe for a tenner - https://www.giant-bicycles.com/gb/tubeless-sealant-refill---check-syringe
I should be picking mine up later this week
Seconded!
I particularly like the way it makes it easy to syringe out the sealant so you can see how much is left without having to unseat the tyre bead.
A piece of advice I only found after getting a puncture that wouldn't seal last week and finding hardly any liquid sealant left in the tyre 7 months after I fitted it with a generous amount (and not noticing any leaks/puncture fixes in the mean time) is to add about 10ml of sealant every month (through the valve) - it's on page 29 of this Schwalbe 2019 brouchure - https://www.schwalbe.com/en/catalogesflyer.html?file=files/schwalbe/user...
If you have a syringe of the type with a tube that goes thru the valve core into the tyre (and of you are serious about tubeless, you should), just pop the valve core out once in a while and see if you can draw off any sealant. Add more as necessary.
Look for Kapton tape on the tinterwebs; it's basically identical to Stan's tape, but sold for use in IT and other applications and so is magnitudes cheaper for larger rolls. They also make loads of different widths to suit your rim internal width.
The brands make it difficult to understand. I use Hutchinson road tubeless (http://www.hutchinsontires.com/us/technology/road) and their's are proper tubeless with a sealed butyl liner and on my Campag 2-way fit wheels they go up to pressure and stay up without sealant. However, Schwalbe refer to their Pro One tyres as 'TL Easy' which presumably means 'tubeless ready' so needs the sealant to line the tyre.
Hutchinson have one tyre, the Sector, which requires sealant ("Protect’Air MAX latex sealant required for use." - http://www.hutchinsontires.com/us/road/tire/sector-28-32-bike-standard) but the Fusion 5 don't. And yes, they are a little heavier (325g compared to 210g - for the 700x25c all season) but I certainly don't find them 'sluggish'.
But the article isn't about fast racing tyres it's about making tubeless easy. And I still think a fully sealed rim (no spoke holes) is the best way to 'easy' when it comes to tubeless. The problem is trying to find out who's rims are sealed and who's are just jumping on the 'tubeless ready' bandwagon.
And yes, now that I look it seems that the Nobby Nics have changed since I bought mine. I can't see any UST ones about anymore. Even the Mavic rims that I have now have spoke holes if purchased today. Looks like I'll have to change my brand allegiance going forward!
For hassle free fitting use fully sealed rims with no spoke holes and proper tubeless tyres. No need for rim tape at all and works without sealant.
I still add a small quantity of sealant to help prevent punctures (through the valve) but it's much more simple when your setup works without relying on the sealant to make it seal.
I use Campag Zonda 2-way fit wit Hutchinson Fusion 5 on my road bike and Mavic 819 UST with Schwalbe Nobby Nic on my mtb. Never have a problem with either.
This isn't quite right. Genuine tubeless UST tyres are heavy and have thick sidewalls that make them sluggish. This is why most road tubeless are called 'tubeless ready' and actually need sealant to work. They have the correct bead but their sidewalls are not sealed. They remain supple and roll better. My Nobby Nics on the MTB also need sealant to work. Yes, they will inflate but will go down overnight without the addition of sealant.
I've used tubeless for a couple of years, never had a puncture since. Use decent rim tape( stans), clean the surface with alcohol and lay two smooth layers. Fit the tyre and leave a few inches to pour in sealant. Slowly rotate tyre so sealant moves to other side of wheel, pop remaining bead onto rim. Inflate with compressor or some device with gives a burst of air, tyre will pop into place. Bounce tyre all around rim to fully seat bead. I then spend 5 mins rolling and rocking wheel to coat all the internal surfaces. Leave a while then inflate to desired pressure. I experience hardly any loss of pressure even after months of not using a wheelset.
I run tubeless on both road and MTB and they work a treat. I learnt my technique from Stan so thats using soapy water round the rim to help seat the tyre which really helps. I also seat new tyres first without sealant to make sure they fit first, then deflate and add in sealant with a syringe through the valve core. Ive had a tyre blow off the rim once full of sealant because it wasnt seated properly - what a mess!
Using an Airshot is also a good investment as you can seat tyres first time every time.
You also dont need the rubber strips that the manufacturers want to sell you; two rounds of rim tape is all that is needed. I use Stans tape.
I change my sealant every 6 months or so, never needed any more frequent than that in the UK climate. And if the bike is stood for any length of time, just spin the wheels every time you are passing to lubricate up the inside of the tyre.
Tubeless seems to face a lot of resistance through the road community but I wouldnt go back to tubes as once youve mastered your technique, it works very well.
Well it kinda depends on the sealant some last only 3-6 months, even less in hotter cilmates
Personally i like to use Specialized airlock sealant
Its designed to go in tubes aswell as be used for tubeless, only £5 for a bottle which does 2 wheels
More info on it here
https://www.specialized.com/us/en/components/tires-tubes/airlock-tire-se...
One Mtb hasnt had any replaced in 18 months and it still sealing punctures as of last Sunday
kev - how often do you need to renew the sealant. I was reading an MTB board the other day and they were suggesting as often as monthly, which seems a bit excessive/expensive.
Ive been fitted tubless tyres to roadbikes and mtb's for the last few years, even doing Ghetto conversions on non tubeless fat bike wheels using Gorilla tape (works a treat)
If using new tyres then mount them first with tubes and leave overnight to allow the tyres to hold their shape once you remove the tubes
Tapeing is the one half of getting a good seal, take your time and double wrap making sure everything is nice and smooth
I personally prefer to fill the tyre whilst part of it is off the rim rather than fill through the valve, i find this less messy
Once the tyre is on most can be inflated with a standard track pump or a car compressor (cigarette lighter plug in one)
Give it a good spin whilst tilting it side to side so the sealant gets around the tyre bead
Then go for a quick blast round the block this helps make sure the sealant finds any small leaks around the bead
Tried tubeless... what a mess. Never again on road bike.
personally I would inflate once to seat the tyre before putting any sealant in. Then deflate pu in sealant and valve core and reinflate.
less messay if the tyre doesn't seal quickly or blows off the rim.