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Giant tubeless sealant refill & check syringe kit


Getting the right amount of sealant into your tubeless tyres to start with is easy. The problem is knowing how much it has dried up or leaked out after a few months, without stripping the tyre off.

This simple but effective syringe kit lets you ‘dipstick’ the sealant level in your tyre by unscrewing the valve core, slipping the pipe into the valve and sucking out the juice. If you need to add more, then simply suck extra out of your sealant bottle, lock the flow off with the mid-pipe valve, and inject it into the tyre.

The press-fit connections are less secure than screw-in fixtures, and you don’t get valves with a sealing ‘mouth’ like you do with MilKit’s similar-looking (but considerably more expensive) kit, so there’s a risk the tyre will unseat when you deflate it. That means there’s no danger of blowback, though, and we like the fact you get a spare pipe to use if/when the first one gums up.

Price $15


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