5 Pcs (+ 10 Caps) Brass Presta Valve Adapter - Convert Presta to Schrader/Auto for All Types of Bikes, e-Bikes and e-Scooters - Inflate Tire Using Standard Pump or Air Compressor - by Mobi Lock

Nearly got me out of a hole. Borrowed a friends bike but tyres needed blowing up. They were not fitted with the correct valve stem as my compressor so ordered these. Delivered next day. Great had time to wash the bike and check everything was working in the garage.Valves arrived out on types pumped up great only to find my friend has a 36 inch inside leg and I couldn’t get the seat to adjust. Bike returned like new and he was chuffed.Oh and the valves worked a treat.

They fit my presta valves .I used my cyclo mini pump to fit onto the valve and inflated no problem.had to use a bit of force to screw it on though initially.i didn't keep it in though as didn't really think they fulfilled anything extra as some people have stated but put back into my tool bag to hopefully not be used for a long time now.. definitely handy and definitely better than having to change out the pump valve on my cyclo or hand pump..good buy..no regrets.seem to be quality material used

I had given up on finding a good presta pump. None of them seemed to work well so I thought I would give this adapter a try and it works well. The bag contains several (4?) presta-schrader (car) adapters plus dust caps for both types. Just open the central screw on a presta then screw the adapter on and you can use any standard car type pump. Personally I then take if off again because it might jiggle free or cause balance issues but you can just keep it with the pump. I can now pump the bike tires to high pressure with a reliable car pump. A good purchase.The worst thing is the legal disclamer "Our products are not intended to diagnose, treat, cure or prevent...Discontinue immediately if any adverse effects occur...This is not a medical device and is not intended to treated for medical use in any way. Strictly for home and personal use only." Don't know what they think people will do with them!

I bought these quite a long time ago for my new bike that had inner tire tubes with Presta valves. For some reason I just continually struggled using a pump to get air into them. I sometimes wonder why Presta valves are so popular because I'm sure I can't be the only person who has an issue with them! Or am I? Anyway, so I came across these and decided to give them a go....best thing I did! They have proved to be a very inexpensive solution, are quick and easy to use converting from a Presta to a Schrader valve, and thereby saving me a lot of frustration and unnecessary stress! Highly recommended!

Why on earth have I been battling with the Presta valves on my mountain bike inner tubes for so long? These adapters screw straight over the top and turn them into Schrader valves which are so much easier to work with. Such an easy conversion. They work perfectly.

Fit onto the presta valve fine, after pumping up your tire you can close the presta valve and then screw these adaptors back on with the schrader cap, ready for next time and also means you won't misplace them.Quantity of 5 is perfect for 2 bikes so you can carry the spare with your puncture kit.All parts good quality, well recommended.

Decent quality items for the price, generally well machined but one was not and it sat at an angle on valve and didn’t hold air very well. All the others seem to be ok.

i hate schaeder valves (or however you spell it). i absolutely love these things. would recommend