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What Are the Benefits of Presta Valves?

Editor’s Note: One of the perks of being an RBR Premium Member is the ability to send us a direct question using the Ask RBR a Question form at https://www.roadbikerider.com/ask-rbr-a-question. (You can find the link anytime you need it in the Premium Members section, upper right of any page on the site.) Oftentimes, the question is about a specific training or tech issue relevant only to the Member asking the question. At other times, though, we get a question whose answer is quite interesting and worth sharing with all RBR readers.

Such is the case with a recent question we received about the benefits of Presta valves. And as is sometimes the case, if we don’t know the answer off the top of our heads, we’ll research it and do our best to find an answer for you.

Question:  I work at a television studio in L.A. During the performance of my job, I use my Specialized Sirrus to get around the lot. The other day I was pumping up my tires and a co-worker asked me about the Presta valves on my tires. I’ve had Presta valves for as long as I can remember on all my bikes. I never even thought about where they come from, or what the benefits are. I was momentarily stunned by his question. When did Presta valves come about, and what are the benefits of them. As always, thank you. – Greg Banta

John Marsh Replies:  Greg, here’s your answer, via two late industry icons, Sheldon Brown and Jobst Brandt: http://www.sheldonbrown.com/brandt/presta-schrader.html.

I think the most important part is this:

“The outer valve stem is manufactured in various lengths for different applications and has a narrower diameter (6 mm) than Dunlop and Schrader valves (8 mm). The weakest point of a bicycle rim is usually the hole for the valve stem. The smaller hole for a Presta valve makes it possible to have extremely narrow wheels while maintaining sufficient strength in the wheel. [Wikipedia, credited to Jobst Brandt]”

I’ve copied Jim Langley, our Tech Editor, in case he wanted to add anything.

Jim Langley Replies: John’s answer was great and I can’t add anything really, except to tell you that I haven’t ever been able to find out when/where the Presta valve was invented for sure. But patent searches suggest that it was invented by Michelin in France between 1880 and 1890. The Schrader valve goes back to 1893. Here’s one thread on the subject that I used as a source:  https://nycc.org/node/33518

Reader Interactions

Comments

  1. wle says

    December 8, 2016 at 3:56 pm

    another virtue is – no spring in the valve – simpler – it does not need a ‘presser’ to open the valve – if the pump pressure is higher than the tire pressure, the air goes in – otherwise it is shut by the tire pressure..

    Reply
  2. Mark Ehlers says

    December 8, 2016 at 6:09 pm

    Wle’s comment on not needing to push past a spring is the main reason I’ve always thought was the main reason for presta.

    Reply
  3. Kerry Irons says

    December 8, 2016 at 10:20 pm

    When John Howard was doing his speed record attempts on the salt flats, his bike used narrow motorcycle tires with Schraeder valves. To save weight (?) they left the valve caps off. When the bike got up to a certain speed (around 100 mph I think) the force on the valve spring caused the valve to open and the tire to go flat. If he had Presta valves this wouldn’t have happened. It turns out the motorcycle speed record guys knew all about this issue but of course Howard was on a bicycle and didn’t learn that it was “common knowledge” until after he had a long slide on the salt.

    Reply

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