do these have a smooth or threaded presta valve?
604649
It is not threaded and does not have a lock nut. This makes it difficult to push a pump adapter onto the valve if the tire is not fully inflated. I don't know if this may have advantages or if it is just cheap.
604650
Presta but the size range is WRONG. Buy something closer to the size you want!
576194
I don't quite follow your question, but no - the threaded connection on this was smooth yet snug with the correct size pipe.
1784614
No check valves. I was also surprised to learn that the threads are British pipe threads, which is neat impossible to find in the US. It is, however, a quality product and maintains the set temperature.
652713
Dad2Three is right. Just one more note on this. At least on my pump, the nut on the head of the pump was impossible for me to loosen by hand since it was so tight. I could only loosen it with the careful use of a vice grip. I didn't want to break the nut, so I put wrapped a rag around it to avoid scratching or damaging the nut, and I didn't squeeze too hard on the nut. I was able to loosen it this way and then do what Dad2Three said to make it work for presta valves.
377673
Yes they are threaded. Here is the manual http://www.rtaproducts.com/products/rta-3331.htm
1513115
They were drilled, but not threaded. Some of them came already threaded, which I would have preferred, because I didn't have much luck in tapping them.
669905
presta. At least the same wheel I have that is disc brake ready is set up for presta. I ordered that one on accident and from what I saw, it to was presta valve ready.
1769711
It is a schrader valve. I ordered it thinking that it was a presta but had to return it! Disappointing.
964692
Presta Valve. Also do note: I'm using 700x28 tires and they are snug. Sheldon Brown chart shows a 28 as the smallest possible but I think you could get away with a 25.
1758663
It's cheaper to buy some adapters than buy a new pumpTo pump up European tires you need to buy a presta-to-schrader valve adapter and screw it onto your dunlop valves. Boom, done. As arbitrarily as the bike industry has handed us theses three valve types to deal with, they have offered up a nice solution: the threads on the presta and dunlop valve are identical. A presta-to-schrader adapter is therefore a dunlop- or presta-to-schrader adapter.
403091
Yes. All the 700C sized wheels I've ever seen have a presta sized valve stem hole. I had to do some very minor trueing.
2194928
Yes will work with both, regular bike valves (Schrader) and Presta what most road bike.
432069
We bought one that was a friction-fit only. Then we found another (on Amazon) that was threaded. You want the threaded version. -Richard &lt;&gt;&lt;
1346462
No but it can easily be modified to fill Presta Valves.See my comment below.
1145289
A Schrader valve is the standard valve on inner tubes and car tires. For your bike it is a larger diameter hole on the rim. A presta valve is skinny and has a nut on it to hold the valve tight on the rim. skinny rims like for road bikes and now a lot of mtn bikes use presta valves. I like schraders so I drilled my rim with 1/4 inch bit to accommodate the tubes. Good luck.
2082685
I don't remember them being "pre=drilled" but they come with self tapping screws which are awesome and work well. I did add a few more screws just to be sure it was tight against the wheel well all the way around
404377
it will take the standard presta valves but I personally prefer the 45 millimeter long presta valves