4x Brass Presta to Schrader Bike Valve Adaptor Adapter Converter with o-ring Seal

Work well for inflating with schrader valve pumps and electric/battery powered inflators,has to be removed to re-tighten screw valve nut on presta valve.has rubber seal/o ring to create a good airtight fit onto presta valve.overall a useful,well made,well priced item.

Tyre inflation using a hand pump can be time consuming. Having these adaptors available it was easy to fit a electric tyre compressor and pressurise the tyre quickly and easily. The first accessory worked straight away problem free but I pick another one that as screw the adapter off it deflated the Schrader valve probably a burr on the adapter but it still worked well. Liked the adapter idea as simple to use.

I recently bought a new road bike and realised that my bike pump was not capable of pumping my tyres up to 6 bar but with these valves I am able to connect them to my car compressor which blows the tyres up in no time at all. Only point to note is to ensure that when removing the car compressor from the valve is that the black seal stays in the brass valve as this valve won't work without it. Great product which I fully recommend.

Does a job but rust way too easily

Good quality quick delivery

Easy to use and great value. Cheaper than replacing my bike pump so would recommend.Deliverer on time too.

They come off the bike valve when under pressure,

They do the job adequately.