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76 Projects Hi Flow No Clog Tubeless Valves



Innovative and effective way to combat clogged valves, though you might need to buy a pump adaptor too
Valves don't get clogged with sealant
Makes inflating tyres easier
Three different size options
Good value
Screw-on pump adapter adds to the price
Only available in black or pink...
Contact: Recommends

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At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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The 76 Projects Hi Flow 'No Clog' tubeless valves are excellent, and a gamechanger in tubeless setups. Just be sure to buy the adaptor if you use a screw-on pump...

Although these are different to install than standard tubeless valves, they're not much more difficult. Rather than inserting the valve through the rim from inside, as you would a standard tubeless valve, with these Hi Flow valves it's the opposite: you unscrew the base of the valve, push the body up through the rim, and screw the base back onto the body of the valve in the bed of the rim, then tighten the valve nut. (There's a video on 76 Projects' website, if this is hard to picture.)

When it comes to adding sealant, there are two methods, as shown in our video below. You can either seat the tyre without sealant and then pump sealant through the valve, or seat the tyre with sealant in.

I prefer the first option, and always seat a tyre without sealant in it first to prevent having to deal with the mess that can cause if the tyre doesn't seat easily. I then pump sealant through the valve. I do have to unclog the valves quite frequently, though, so I was very keen to test the 76 Projects valves, and as I squeezed the bottle of sealant I noticed straight away how quickly and easily the sealant flowed through the valve.

An added bonus of the Hi Flow design is that airflow through the valve increases significantly, making pumping up your tyres more efficient; this was noticeably easier even when using a standard hand pump.

My test pack of valves didn't come with the screw-on pump adaptor, which was a bit annoying as my tubeless seating chamber uses a screw-on head, so be prepared to add the adapter for £4.50 when placing your order if you're going to need it. Fortunately, because of the increased airflow and tighter fit of my tyres, I managed to pump them up just using a floor pump with a lever style head.

Although the valve core is not removable, this is not an issue as the Hi Flow design means you can push tubeless sealant through the valve without it getting blocked at all; there's no need to carry a valve core remover or spare valve cores for when a typical Presta tubeless valve core gets bent or clogged up. (You can replace it, but it's not 'removable' in the usual sense, because of the way it has to be pushed through the valve and out of the outside of the rim – it can't be removed while the tyre is seated.)

2023 76 Projects Hi Flow Valve fitted 2

Since fitting the valves, I've not had any issues with pumping the tyres – a typical sign of valves being bunged up with sealant. Just be sure to keep the provided valve cap on during your rides to prevent the head of the valve core from falling off, as it does unthread all the way, whereas a typical Presta valve core head stops at the end of the thread and can't come off. This valve cap also prevents any dirt or water from corroding the threads of the valve core.

The valve cap, valve core and brass valve nut are available as spares for £1 each if you do end up losing or damaging them.

While not cheap, at £24.50 they are pretty good value. Muc-Off's new standard tubeless valves cost £27 and the Juice Lubes Tubeless Valves that Steve tested recently are £29.99, neither of which are 'high flow'; the Reserve Fillmore tubeless valves, another high-flow design, are £10.50 more.


If you're forever finding yourself stuck with clogged-up tubeless valves, or you're just looking into setting up your bike with tubeless tyres, these valves are ideal. They improve pumping efficiency and they don't clog up, exactly what's needed in a pair of tubeless valves.


Innovative and effective way to combat clogged valves, though you might need to buy a pump adaptor too test report

Make and model: 76 Projects Hi Flow 'No Clog' Tubeless Valves

Size tested: Pair of Size 1 - Rims 15-35mm

Tell us what the product is for and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

76 Projects says, '76 Projects' HI FLOW valves have 4x the air throughput and a redesigned core that helps prevent sealant build-up.'

This provides a forward-thinking solution to the annoyingly common problem of clogged-up tubeless valves.

76 Projects continues: "Tubeless bike tyres and rims were introduced 20 years ago yet tubeless systems still use the Presta valve standard. The clearances in a Presta valve are smaller than the holes that sealant is supposed to be able to block so it's no surprise that the valves get clogged."

And lists:

'No Clog' internals - Greatly increased clearances prevent sealant build up.

4x greater air flow (compared to Presta) - Fill the tyre faster to help seat and seal the bead.

Sealant can be directly injected through the valve centre (see pic). Because the valves allow such fast and reliable inflation we recommend adding sealant directly to a unseated section of the tyre.

Just 9 grams a pair.

High precision CNC machined aluminium.

Spare parts available here.

Size 1 Compatible with rim protection inserts

Tell us some more about the technical aspects of the product?

Four times greater airflow

Made from CNC Machined aluminium

15g a pair for the 45-65mm version

Rate the product for quality of construction:
Rate the product for performance:
Rate the product for durability:

Early days, but all good so far.

Rate the product for weight (if applicable)
Rate the product for value:

Tell us how the product performed overall when used for its designed purpose

They have worked flawlessly at keeping air flowing smoothly through the valves, as well as holding air pressure well.

Tell us what you particularly liked about the product

The innovative way of allowing greater volumes of air and sealant through the valve, providing enough gap for the micro sealing particles in tubeless sealant to pass through without getting stuck in the valves.

Tell us what you particularly disliked about the product

The need to buy an adaptor if you use a screw-on pump.

How does the price compare to that of similar products in the market, including ones recently tested on

At £24.50, they are good value – a few quid less than Muc-Off's new tubeless valves and Juice Lubes' Tubeless Valves, neither of which are 'high flow', and £10 less than the Reserve Fillmore tubeless valves, which do offer a high flow solution.

Did you enjoy using the product? Yes

Would you consider buying the product? Yes

Would you recommend the product to a friend? Yes

Use this box to explain your overall score

They're excellent – they've done a great job of staying sealant-free and staying sealed.

Overall rating: 9/10

About the tester

Age: 25  Height: 175cm  Weight: 75kg

I usually ride: BMC URS Custom build  My best bike is: BMC TeamMachine SLR01

I've been riding for: 5-10 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: road racing, cyclo cross, touring, No

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matthewn5 | 1 year ago

Great, I can't wait for the next club ride when a hapless rider asks "has anyone got a 76 Projects Hi Flow No Clog Tubeless Valve adapter"

wycombewheeler replied to matthewn5 | 1 year ago

Can't remember the last time someone on a club ride used a screw on pump. evryone just whips out the co2 cartridge.

wtjs | 1 year ago

If I take leave of my senses and decide on tubeless, these are what I would try!

Off the back replied to wtjs | 1 year ago

Ridden Tubless on my bikes for 2 years. Not one puncture after 15000km 

Used Mavic Ksyrium, Hunt and Roval wheels, all with Conti 5000 TLs, hassle free and never let me down. 

wycombewheeler replied to Off the back | 1 year ago
Off the back wrote:

Ridden Tubless on my bikes for 2 years. Not one puncture after 15000km 

Used Mavic Ksyrium, Hunt and Roval wheels, all with Conti 5000 TLs, hassle free and never let me down. 

I've had one puncture on tubless in 10s of thousands of km, and while I could seal it with a worm, as it was in the side wall the worm kept hitting the mudguard struts and so worked loose, needing to needing to put a tube in (which promptly puncture due to the massive sharp stone elsewhere in the tyre (which sealant had dealt with)

However I also had a issue when after hitting a pothold the tyre shifted and wouldn't re seal, maybe the tyre pressure was too low, but I don't think this should happen in any case. I blame TSS (tubelsess straight sided). I doubt this would have happened with a proper tyre bead and hooked rim.

Hirsute | 1 year ago

Ironically, size 1 is unavailable.

ktache replied to Hirsute | 1 year ago
1 like

I like their Cable Bobbins.

kil0ran replied to ktache | 1 year ago
1 like

Their on bike storage stuff is good too - had a Piggy when I was riding MTB.

ktache | 1 year ago
1 like

Cheers for this.

I'd been seriously considering the Reserve Fillmore valves, which did come top of the "Best Tubeless Valve" lists I'd seen, these seem to offer better value and more importantly, easy to source spares.

ktache replied to ktache | 1 year ago

Okay, now I've searched for them, caps are available but pricey, but in many colours, especially Purple (so 90s) and Oilslick, so pointless, but...

HollisJ replied to ktache | 1 year ago
1 like

You only live once! 

Global Nomad replied to ktache | 1 year ago
1 like

i just bought the filmores for my road rims so once they arrive and set up I'll see how much difference they make. Now wondering if these would have done the same job...I think my biggest issue is getting tyres to seat when initially setting up so hope the added airflow helps. Have been  using Milkit valves for a couple of years - mostly good but the plastic valve tube gets twisted/stuck often. 

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