DRIFT MANIAC 1 Pair Bicycle Tubeless Presta Valve Aluminum Notubes Valve For MTB Road Bike

Once fitted and made fully functional these valves worked, however it was only after fitting them and fitting some very tight tyres and then attempting to seat the tyres, by inflating them, that I discovered one of the valves was faulty with the rubber part that seals onto the wheel rim not having a hole all the way through and was just a depression about 5mm deep.Seeing as I had no other valves to fall back on and needed the tyres fitted for a weekend trip, the only choice I had was to drill out the rubber that blocked the valve. Once that was done the valves worked faultlessly, but a bit of a disappointment that they arrived with a fault which required engineering skill to correct.

Not the greatest for tyres needing higher pressures. The rubber washer that is supposed to seat under the securing nut is a poor fit and as the nut is tightened part of the washer is pushed out from the nut to leave a gap. I couldn't get the valve to seat tightly enough on my wheels and lost pressure after a few minutes. May be okay for an MTB where lower pressures are used.

Fitted, sealed eventually, but ultimately the valves have failed. Purchased 2 sets and both have failed in both wheel-sets.Ran them for just a couple of rides but left the bike for a few weeks and will no longer hold air when re-inflated.Have experience with tubeless set up, purchased due to speed of delivery.

Very cheap quality. I never could get a seal and had to return them. The collar that came with them either stripped its threads or had so much play that it would slide down the valve.

All good. Converted two wheels, no problems thus far.

Valve stem snapped while pumping up the tyre. Thank God I wasn't riding

Good quality for the money

Exactly as described, good quality for the price so decent value. These were the second set for converting to tubeless. Installation was straightforward and holding up well