Brass Presta Valve Adapters(Pack of 10 + 10 Caps), Presta Valve Adapter for Air Compressor I nflate Tire Using Standard Pump by Mobi Lock - Bike Presta Valve for Bikes,Motocycle and Cars

works well.

I lose these everywhere. These are easy to use. The threads are clean and the o ring makes a good seal.

Works well, I wasn't sure how to install but finally figured it out. Made it must easier to use my existing air pump.

You can never have enough adaptors. Well made and arrived quickly

I went on a bike ride a while ago where I had experienced getting a flat without having a valve adapter. I had everything that I needed to change my tube except for a valve adapter. Luckily, I was near a gas station that had a pump and I realized that I had no way of pumping my tube because I was missing this one measly little adapter. I ended up riding on a flat back home for about 7 miles. From that day forward, I purchased these adapters and I now don’t have to worry about missing anything when I’m out on a ride.

Easily filled a presta valve from a conventional pump. Lots of backups in the package for not a huge amount of money. Its going to take me months to lose all of these. Construction is durable enough that I will have to lose them, unlikely to break the adapters.

Gets the job done.

I hated having to use a presta pump. I leave these on permanently and can use a regular pump. No extra loss of pressure over time.

Work well

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