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stargazer48
 
I have always had presta valves on my road bike tubes. My Swift folder came with shrader valves. Which valve type is most available in the US and around the globe for 20" tubes?

Just thought i'd ask.

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DaFriMon
 
20 inch Presta valve tubes are easily available. Although all my 20 inch (406) wheels are drilled for Schraeder valves, I use rim converters like these ( http://store.bikefriday.com/product_info.php?cPath=52&products_id=979) along with Presta valves. If I were only able to find a Schraeder valved replacement, say if the nearest source were a WalMart, I'd just remove the convertor.

CHenry
 
Most portable and floor pumps have convertible valve fittings, so you can use either type valve. Schraders give you the option of filling at a gas station air hose without an adapter. I like the durability of a metal valve stem, so if I am choosing, I usually get Presta-valved tubes.

eubi
 
I prefer presta tubes because they're easier to inflate.

We have to pay for air at gas stations here in So Cal, so a schrader has no advantage for me in that department. I carry an adapter (or two!) just in case.

LittlePixel
 
You pay for air? I say "Get a trackside stirrup pump!"
H :)

folder fanatic
 
We have to really pay for the priviledge of living in nice weather that is offered here in Southern Califorina. As for the valve type, I always have had Schraeder valves on my past and present bikes. I find these the easiest to replace, fill up at a gas station (until recently, the air was free before vandals start chopping off the head of the hose). I now keep a handy floor pump with an adaptor built in for all three of my bikes. The gas station is too costly and dangerous-the air and water machine is usually located in a isolated part of the gas/petrol station which makes an person bent over a bike an easy target for theft or attack-another perk of living in Southern California.

Dave Hickey
 
On this trip I wish I had schraeder. I arrived in Hartford, CT yesterday for a business trip. As I was unpacking my Bike Friday, I noticed I left my presta adapter at home. I usually carry CO2 but I have to remove them from my saddle pack when I fly. I spent an hour looking for a bike shop that carried a presta adapter. I also bought a small mini pump but they are hard to inflate to 110psi..

If I was doing extensive touring, I'd go with Schraeder.

maunakea
 
In Japan, all bikes tubes are Presta. I have Schraeder valves on my bike there so I can top off at auto service stations. The station attendants go into a panic (there are no self-service gas stations in Japan) as I start to put air in my tires with no adapter, thinking my valves are Presta. Even though I explain that my valves are "car style" (the terminology is car vs. jitensha, not Schraeder vs. Presta, the term "bike" only means motorcycle), they are sure they know the real story ... until, of course, they see the valves. They ask "Where did this bike come from?" I sometimes answer, "the moon, it's a NASA moon bicycle".

DaFriMon
 
On this trip I wish I had schraeder. I arrived in Hartford, CT yesterday for a business trip. As I was unpacking my Bike Friday, I noticed I left my presta adapter at home. I usually carry CO2 but I have to remove them from my saddle pack when I fly. I spent an hour looking for a bike shop that carried a presta adapter. I also bought a small mini pump but they are hard to inflate to 110psi..

If I was doing extensive touring, I'd go with Schraeder.

In addition to the rim converters (converts Schraeder drilled rim for Presta valve), I use a Schraeder to Presta valve adapter on the rear valve instead of a valve cap. That way, I always have it if I need it, though I never have. I also put a Schraeder valve cap over the valve adapter.

I like the Road-Morph style pump that is basically a small portable floor pump. Much easier to inflate to high pressures when you can put your weight into it.

geo8rge
 
Mt experience is it is easier to damage presta valve tires as there is less supporting the valve base. Hold the valve inplace when using a pump.

eubi
 
You pay for air? I say "Get a trackside stirrup pump!"
H :)

Hahaha. Well, I don't.

My wife got me an air compressor for our aniversary one year.

Guys! CHOOSE YOUR WOMEN CAREFULY! :D

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