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Are Presta valve caps uncool or what?

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Are Presta valve caps uncool or what?

Old 02-04-18, 11:23 AM
  #26  
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Riding a bike without lock nuts and caps on the valves is like walking around with untied shoelaces. Sure, it can be done. But it's a display of sloppy workmanship and lack of attention to detail.

Yes, I said that.
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Old 02-04-18, 12:00 PM
  #27  
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Originally Posted by SquidPuppet
Riding a bike without lock nuts and caps on the valves is like walking around with untied shoelaces. Sure, it can be done. But it's a display of sloppy workmanship and lack of attention to detail.

Yes, I said that.
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Old 02-04-18, 12:04 PM
  #28  
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Originally Posted by f4rrest
They're absolutely necessary on the rolled up spare tube to keep it from puncturing the tube in storage.

Toss it after installing the tube. Unless you keep the box too...
?? Not to argue but I've never, ever had this happen. That's in over 30,000 miles this decade will carrying two spares.
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Old 02-04-18, 12:11 PM
  #29  
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Originally Posted by jamesdak

And don't get me started on the ridiculous anti-aerodynamic claims made by cap haters. The threads on the valve catch a LOT of air, and therefore create massive wheel turbulence and imbalance. Covering as much of the threading as possible with a long smooth valve cap pays huge dividends towards improved handling. Also, valve caps are shaped like a bullet. A BULLET for crying out loud. Helloooooooooo?

Riding without caps is for bicyclist with limited or poor bike handling skills. They are not sensitive enough to notice the dramatic improvements in handling that caps provide.
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Old 02-04-18, 12:15 PM
  #30  
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Originally Posted by SquidPuppet
And don't get me started on the ridiculous anti-aerodynamic claims made by cap haters. The threads on the valve catch a LOT of air, and therefore create massive wheel turbulence and imbalance. Covering as much of the threading as possible with a long smooth valve cap pays huge dividends towards improved handling. Also, valve caps are shaped like a bullet. A BULLET for crying out loud. Helloooooooooo?

Riding without caps is for bicyclist with limited or poor bike handling skills. They are not sensitive enough to notice the dramatic improvements in handling that caps provide.
Are you for real??? Heck I gain 2 mph just by leaving that added weight behind. I mean jeesh it's on the part of the wheel where you don't want weight and must add at least 10 lbs of rotational resistance when you're running at 30 mph like I normally do on my uphill climbs into a 50 mph headwind.
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Old 02-04-18, 12:17 PM
  #31  
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Originally Posted by Deal4Fuji
Off-topic, but I am perplexed seeing 27 x 1.1/8 on that tire sidewall. Some kind of fusion of decimal and fractional systems??
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Old 02-04-18, 12:21 PM
  #32  
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What?



...

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Old 02-04-18, 12:26 PM
  #33  
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Totally unnecessary.
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Old 02-04-18, 12:41 PM
  #34  
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Originally Posted by jamesdak
running at 30 mph like I normally do on my uphill climbs into a 50 mph headwind.
Again, riding at such a low performance threshold and under such mild conditions, it's completely understandable that you would not notice the benefits.

You wanna talk weight and aero? OK, let's go there.

The big wrench flats on the outside of spoke nipples are square (non-aero) and add a ton of unnecessary weight. That's why before I build my wheels, I put dozens of nipples in a lathe and machine them down to a smooth cylinder shape. Then I weigh them and only use the ones that fall within a weight tolerance of .000000003 grams. Balance matters. A LOT! Then I use the screwdriver slot in the head of the nipples to true my wheels.

Also, I make my own carbon fiber valve caps and titanium lock nuts. The lock nuts are not knurled. Drag and turbulence reduction, again.

Riding at the level that I do, it's easy for me to understand why the average rider wouldn't notice these things.

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Old 02-04-18, 12:45 PM
  #35  
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Originally Posted by SquidPuppet
Again, riding at such a low performance threshold and under such mild conditions, it's completely understandable that you would not notice the benefits.

You wanna talk weight and aero? OK, let's go there.

The big wrench flats on the outside of spoke nipples are square (non-aero) and add a ton of unnecessary weight. That's why before I build my wheels, I put dozens of nipples in a lathe and machine them down to a smooth cylinder shape. Then I weigh them and only use the ones that fall within a weight tolerance of .000000003 grams. Balance matters. A LOT! Then I use the screwdriver slot in the head of the nipples to true my wheels.

Also, I make my own carbon fiber valve caps and titanium lock nuts. The lock nuts are not knurled. Drag and turbulence reduction, again.

Riding at the level that I do, it's easy for me to understand why the average rider wouldn't notice these things.

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Old 02-04-18, 12:50 PM
  #36  
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Originally Posted by jamesdak
That's right buddy. Get the hell out of my way. Me and my coaster brake Schwinn need room to fly.
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Old 02-04-18, 01:12 PM
  #37  
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Asking what is "cool" is unimaginably uncool. You are toast, socially.
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Old 02-04-18, 01:13 PM
  #38  
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If you like your valve caps, you can use your valve caps.
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Old 02-04-18, 01:21 PM
  #39  
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Originally Posted by John_V
If you like your valve caps, you can use your valve caps.
That is sensible and non-judgemental. And, therefore, not in keeping with BF conventions.
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Old 02-04-18, 01:23 PM
  #40  
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I keep them on my heavy steel bike just to piss the "serious" cyclists off. It works.

However, when I'm out on my "serious" CF bikes, I won't stand for them.
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Old 02-04-18, 01:28 PM
  #41  
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Thread does not disappoint!

Originally Posted by SquidPuppet
Riding a bike without lock nuts and caps on the valves is like walking around with untied shoelaces. Sure, it can be done. But it's a display of sloppy workmanship and lack of attention to detail.

Yes, I said that.
Right. I always wonder what other "shortcuts" the valve cap deniers are taking on the rest of their bike.

Some say that caps are just too much trouble when they get a flat. I had a friend like this. After showing him how to remove and reinstall the cap he agreed that it wasn't difficult at all! Now he's as cool as me.

Originally Posted by caloso
Totally unnecessary.
So why do all new tube and bike manufactures supply them? Surely they could save $$$ and just delete 'em.

Last edited by AlmostTrick; 02-04-18 at 01:31 PM.
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Old 02-04-18, 01:56 PM
  #42  
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Someday, I'll get around to cleaning and vacuuming the mudroom where I keep in-rotation bicycles. I anticipate filling up a whole vacuum canister with Presta valve caps. I tell myself that they're not cool, but the real reason they get left off is because they seem to disappear.

If only we could get those springs on QR axles to stop being cool...
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Old 02-04-18, 02:05 PM
  #43  
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Ya'll fumble with your jam nuts and caps when changing a tube at 17F.

I'll save a seat for you at the coffee shop.
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Old 02-04-18, 02:08 PM
  #44  
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That style of valve cap does double duty as a valve core removal tool, it needed.

/
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Old 02-04-18, 02:14 PM
  #45  
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Originally Posted by joesch
Why not just go a little more impressive ...
This. Celebrate your valve caps.

I think Ill get some of my grand daughter's sparkly nail polish and paint mine purple. Set 'em off just nice on my black bike
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Old 02-04-18, 02:24 PM
  #46  
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Originally Posted by Marcus_Ti
Those had better be jorts.
I do have jorts. But I wear those only when riding my big red comfort hybrid.

Reminds me, I need to iron my guayabera Mexican wedding shirt to go with that combo. Spring is coming. I need to be ready.
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Old 02-04-18, 02:25 PM
  #47  
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These are the kinds of threads that makes Bike Forums worth reading. I'll be disappointed if it doesn't go over 10 pages though.
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Old 02-04-18, 02:33 PM
  #48  
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Originally Posted by SquidPuppet
And don't get me started on the ridiculous anti-aerodynamic claims made by cap haters. The threads on the valve catch a LOT of air, and therefore create massive wheel turbulence and imbalance. Covering as much of the threading as possible with a long smooth valve cap pays huge dividends towards improved handling. Also, valve caps are shaped like a bullet. A BULLET for crying out loud. Helloooooooooo?

Riding without caps is for bicyclist with limited or poor bike handling skills. They are not sensitive enough to notice the dramatic improvements in handling that caps provide.
Yes! This is why I'm considering dipping my Presta valve stems in molten lead. It will improve the aerodynamics by covering the friction-inducing threads and be more aero because it's lead. Like a bullet. 'nuff said.
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Old 02-04-18, 02:36 PM
  #49  
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Originally Posted by John_V
If you like your valve caps, you can use your valve caps.
Oh, great. I just got a bill saying the price of valve caps skyrocketed since that announcement. And it'll only cover one of my valve stems until it reaches 25 miles.
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Old 02-04-18, 02:40 PM
  #50  
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How many forget to take crap before cycling? Think of all the useless weight your hauling around! THE HORROR!
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