Muc-Off No Puncture Hassle Tubeless Sealant Kit

Muc-Off's No Puncture Hassle Tubeless Sealant Kit is ideal for use in the garage or out on the road thanks to its small, easy-to-use package. It certainly does the job, sealing small cuts and holes, and the UV light is a neat way to check for small punctures and leaks you might not have noticed. It is very pricey in this guise, though.

• Pros: Package fits in a pocket or rucksack, measurement marks let you know how much you are putting in, impressive perfromance
• Cons: Expensive in this small package

This sealant kit is for the rider who already has everything else for the conversion from tubed to tubeless, as there are no valves or tape included.

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What you do get in the box, alongside the 140ml pouch, is a 15ml scoop should you need it, a valve core removal tool and a neat little ultraviolet light which picks up any leakages of sealant from the tyre or valve.

Installation is a simple affair provided you are running Presta valves, which on the road virtually all of us are. Ideally your valve will have a removable valve core too, which to be honest is most of the tubeless valves on the market. If you haven't got removable cores then use the scoop to add the liquid to an unseated tyre before installation to the wheel.

To use, first of all give the pouch a good shake. I found it best to first undo the lid to remove any air from the pouch and then tighten it back on.

Next, use the included tool to remove the core and then with the valve at the 12 o'clock position, attach the pouch of Muc-Off. Rotate the wheel so that the valve sits at the 6 o'clock position and squeeze the sealant in by rolling the bag over from the bottom up, until you reach the desired amount of liquid. You'll know this by the helpful marks on the side of the pouch.

Muc-Off recommends 30-45ml for a road tyre so you can easily do two tyres from the pouch, leaving plenty for the occasional top-up if needed.

Whack the valve core back in and give the wheel a spin to spread the sealant around and then pump up to your desired pressure. Job's a good 'un!

The tyres I was using for the test already had a few nicks and cuts in them from previous rides running them tubed, and the Muc-Off did a quick job of sealing them up. Some were quite a decent size – 3-4mm slices – so I don't see any worries with Muc-Off's claims of sealing gaps up to 6mm.

A quick spin over with the UV light and I could see that nothing was leaking out of the valve or around the sidewalls of the tyre.

At first glance a price of £9.99 for the 140ml pouch doesn't look too extreme; true, you can get slightly cheaper with the likes of Hutchinson's Protect Air Max costing £5.95 for 120ml, but the Muc-Off is a much simpler setup to use.

You can buy the Muc-Off in a 5 litre bottle for £120 (£24/litre) or a litre bottle for £29.99, so the pouch at just over £71/litre is very pricey indeed. It does have the added bonus of being able to be carried with you out on the road or trail, but as Muc-Off reckons it'll last a rather vague 6+ months before you need to replace it (we'll keep an eye on that and update the review) or at least top it up, even one bike will get through two pouches a year. It would be much better to buy in bulk.

Verdict

Very good sealing properties and ease of installation but small pouches are a very expensive way of buying