Qkurt Presta to Schrader Bike Valve Adapter, Aluminum Alloy Adapter Converter Bicycle Valve

Good

The last valves i bought slipped off the presta valve. These do not, these work well and are strong.

I had a small compressor that came with a Schrader>Presta valve adaptor. I didn't know any different but it was obviously too short, air leaked every time I attached the compressor tube. Such a pain. Had to over-inflate then judge the air loss in removing the compressor tube. This works perfectly, not a molecule of air lost! Only 4 stars because I was never quite sure of the corrosion resistance of the materials (i.e. aluminium) when compared to brass from the product literature. If comparable, or better, then 5 stars.

Fit for purpose.

Didn't really work as advertised or expected. What was wrong with the old style cycle tyre valves - if it ain't broke don't fix it!

These little things have been fantastic. Using these on my son's racer wheels have meant that I can use my foot pump to inflate his tyres and especially as he has has a few flat tyres lately these have been well worth buying. Only ever needed one at a time but I've got spares now. Always used one of the metal ones. Would definitely recommend.

Arrived quickly

Useful to have but I don’t leave them fitted, they make already long Presta valves even longer and quite unsightly. Good addition for the saddle bag, at an ok price.