Premium Presta Valve Adapters and Stem Caps Combo - FineGood 20 pcs Set for Bike Tire Inflation, Presta to Schrader Conversion, with 10 pcs Dust Caps Review

Should have read 2 other reviews, both are not properly threaded, won't even screw together, over half of them don't work!

These are probably some of the worst I've received and none of them are comfortable. The positive reviews here may be fake or if you are really lucky.

Like all the other bad reviews, bad workmanship. Cannot fill most completely. Can't even start tanking 2 out of 8 of these. Garbage. 1 star selected because I couldn't find 5 black holes.

Presta valves installed over a week ago and the tire has not lost any air. before that i had to air the tires with the presta valve every few days. Good quality, I will order more.

I bought a used 27.5" 21 speed bike. I didn't have a bike for many years and was unfamiliar with Vesta valves. I thought I might need to buy a bike tire pump until I saw this adapter. It didn't work at first , then I watched a short video ... before installing the adapter, you need to unscrew the valve of the vest. Wala! It worked!

So far I've never had to give a bad review. Do not buy! that's a shitty bad workmanship. Either the caps don't fit at all, or you better have a sling and a dice to chase all the threads. Raw aluminum doesn't work at all in this case, because the part on which the cap is screwed is not machined enough, i.e. there is almost no thread. Out of the 20 I received only 4 look like they could be used. . Good thing they were cheap and not worth my time sending them back at this point. Good thing I only…

As another reviewer mentioned, the adapters appear to work well, but the caps are really problematic. If you bought this set, like I did, you bought it for the caps versus the cheaper sets that don't include the caps. The problem with these caps is the machining (and I use that word a lot) of the threads in the caps. abominable. Some caps are so loose that they can be screwed on but removed immediately without even unscrewing them. All have mangled threads. If you've ever ruined the threads of…