VeloTubes Presta Valve Core - 10 Pack

Product Information

The length of the exterior valve stem varies according to the application’s nature. The diameter of the Presta valve stem is narrower (0.23 inch (6 mm)) than that of the Schrader and Dunlop valves (0.32 inch (8 mm)).

Despite lots of development when it comes to the best tubeless tires in mountain bike, gravel and road, the best tubeless wheels and best tubeless tire valves have hardly changed for ages. You could get different colors for matching other anodized components and you could get different lengths for different depths of rim but that was about it. The Schrader valve is a pneumatic (containing pressurised air or gas) tyre valve found on almost all motorised vehicles including cars, motorcycles, and tractors. On bikes, Schrader valves are most often found on low-end hybrid bikes, mountain bikes, and kids' bikes. Inner tubes will come in an array of size options. However, to make things easy, each option will fit a range of sizes. For example, a road-specific inner tube may have a size range of 700c x 23/28. This means it will fit a standard 700c diameter road wheel, with a tyre width between 23 and 28mm (inclusive). The same format is used for mountain bike inner tubes. And sure, a Presta valve probably weighs two or three grams less than a Schrader, but really, are you that big of a weight weenie? Just blow your nose or spit if two or three grams is causing concern.You can also get 'self-seal' inner tubes which are invariably made using butyl, but with 'slime' or sealant inside which fills holes before your tyre has the chance to totally deflate. In our opinion, while these do work, you will be better served by switching to the tubeless tyres, assuming your wheels are compatible. Which size inner tube do I need?

Many pumps are designed to work with Schrader valves only. Some are compatible with both valve types. Presta-only pumps are pretty uncommon. Many cyclists carry a Presta valve adapter to solve this compatibility issue when it comes up. The adapter screws on top of the Presta valve and makes it compatible with Schrader-only pumps. It basically turns a Presta valve into a Schrader valve. You can inflate Dunlop valves with a Presta compatible pump. One nice thing about these valves is that you can remove and replace the valve cores without any special tools.They can also be placed in rims drilled for Schrader valves without any modification. Schrader valves might be easier to inflate when your air pressure is very low, and you are preparing for a ride at the trailhead, but they are more of a legacy cycling standard. Instead of a futureproof one. It happens with pump heads that screw on (like Lezyne), and it’s a severe let down to think you’re almost finished up fixing a flat only to have all the air you just pumped in come rushing out as you pull off the pump. 7. Schrader drilled rims can use either valve

However, since the valve core is at the top of the valve, the actual core is more susceptible to bends or damage in a crash. Because of their superior performance capabilities and the fact that they can hold much higher tire pressures, Presta valves were invented and have been used for higher-pressure tires of many kinds. The valve cover protects the valve body, stops mud and dirt from entering the tire tube, and stops the valve from damaging the tube during rolling storage, but doesn’t have to prevent pressure drop. When buying a bicycle pump, be sure to choose a model that is compatible with your valve type. Most modern bike pumps are designed to work with both valve types these days. Some lower-end pumps and specialty pumps only work with one valve type. Regardless of the valve type that you use, consider choosing a pump that is compatible with both Presta and Schrader valves. That way, you’ll always be ready. There are three different pump designs including:

The inner tube size you need is dictated by the size of your tyres. It needs to be wide enough to fill them, but not too wide that it doesn't fit. Some Presta valve cores cannot be removed- Older Presta valves do not have removable cores. This can be a problem if you want to add puncture-resistant sealant to your tube, if the valve gets gummed up with dirt, or if the valve gets damaged. You can’t just remove and replace the core. It’s important to note that almost all modern Presta valves have removable cores.Not all Presta valves will have a removable core. Thankfully, working out whether your Presta valve has a removable core should be very simple. Which one is best? That depends on how patient and prepared a rider you are. The best new rims are moulded or extruded with Presta valves in mind. And for several good reasons. Presta valves retain air more securely, are much easier to pressure-adjust during ride and if handled with care, and patience, they’ll last a long time. If you ride tubeless tires, you might also be better off with Presta valves because they make it a bit easier to add sealant. They are also slightly easier to inflate. The wheels are stronger when you use Prest valves- The valve hole creates a weak spot in the rim. Because Presta valves are more narrow than Schrader valves, the valve hole is smaller. The smaller valve hole leaves an extra couple of millimeters of material in the rim. This extra material helps to maintain wheel strength. In other words, Presta valves affect the structural integrity of the rim less than Schrader valves. This doesn’t make much of a difference for wide mountain bike rims. For narrow road rims, having smaller valve holes can help to make the wheel much stronger. A stronger wheel is more durable. It will also stay true longer. If your rim accepts tires less than 28mm, you should use Presta valves. Tubeless tyres are superior for all off-road riding applications. And to get the most from a set of tubeless tyres, regarding pressure regulation and air retention, Presta valves are clearly superior to Schrader. You might also like:

This is a thin and small-diameter valve. You can inflate the Presta valve only with a specially designed pump. It contains a threaded metal body. A specially designed nut uses on the threaded body to secure the valve on the tire rim. Schrader valves are significantly wider than Presta valves, the valve core is situated inside the threaded outer - in the image above, the core is the silver section inside the more golden-coloured threaded outer. As a result of all this, the valve head is a different shape, which means that a Schrader valve and Presta valve need different pump attachments - a wider attachment for Schrader, and a narrower one for Presta. The materials are also different. Presta valves are made completely out of metal. They are threaded all the way from the tip to the base. Schrader valves are rubber-wrapped at the bottom. The tip is made from metal and threaded to accept the cap.

What about the Woods valve?

As well as coming in pretty colours, latex inner tubes offer lower weight and rolling resistance than butyl inner tubes. They’re relatively expensive though and heat build-up can cause issues if you’re using rim brakes on long descents. Simon Bromley/Immediate Media If you already have a bike, the best type of valves are the ones that are already installed on your bike. There is really no reason to switch from one to the other. Both perform about the same. My Experience: Presta Vs Schrader On the other hand, if you want to install Presta valves in the Schrader rim holes, reducers or washers may be needed to cover the additional area. Because Presta valves are longer, they are also ideal for bikes with deep rims, such as aero rims or carbon rims. The longer valve is accessible through the deep rim.