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What’s the correct road bike tyre pressure?

  • September 14, 2021
  • 6 min read
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What’s the correct road bike tyre pressure?

There are many factors that determine the ideal tire pressure for you: tire weight, weather conditions, and width – we’ll show you how to get the right PSI. Get

It wasn’t long before the only pressure required to infuse a tire was the maximum recommended pressure – typically 120 psi or more. All trained cyclists have given you this advice and have often given terrible warnings about catastrophic flat tires if you go a little deeper and of course, the old truth is that the higher the tire pressure, the better the bike.

If the wheels are not too tight, it will feel like a sponge when it rushes or jumps out of the seat, and can sometimes rub against the brake belts. Light cycling is ideal for riding because it improves the balance between strength and weight, but it should also be noted that light bikes accelerate faster, which is very effective in competitions where you jump or turn.

The luggage compartment is located in the center of the steering wheel and contains a light and heavy lane. High-quality facilities are improving, often with excellent pillows. The backyard is free for volunteer bikes. This means you can move around freely without turning the pedal. The belt is attached to the body of the free distributor.

The luggage compartment is located in the center of the steering wheel and contains a light and heavy lane. High-quality facilities are improving, often with excellent pillows. The backyard is free for volunteer bikes. This means you can move around freely without turning the pedal. The belt is attached to the body of the free distributor.

A small number of speakers may be more aerodynamic, but the shape of the wire may also play a role, with tails with different characteristics. Items used to be round in diameter, but flat/aero/wings became the unit of any price.

A small number of speakers may be more aerodynamic, but the shape of the wire may also play a role, with tails with different characteristics. The goods were moving around on average, but these became the standard price at all.

This belief coincided with a time when most “real” cyclists were 23mm wide and 25mm were considered a more suitable boat anchor for commuting or travelling.

It is now estimated to be 25mm narrow and is being replaced by top-rated road bikes – 28, 30 and even 32mm tires are now standard on endurance wheels. With that in mind, should we rethink how we think about tire pressure? Is the maximum always the right way?

Why is correct tire pressure important?

As tire pressure changes, it makes sense to speak of “ideal” rather than “correct”: tire pressure alone is not the answer for all drivers.

Tommaso Cappella, Vittoria’s Service and Quality Manager and self-styled tire enthusiast, explains why pressure is so important: “The ideal pressure ensures good tire grip, maximizes contact with the ground and therefore affects handling and performance.

Finding the ideal pressure is a balance between reducing rolling resistance and increasing comfort.

Lab tests with a smooth surface show that a rolling pressure coefficient (EEK) results in higher pressure. However, the actual removal of the road from the lab to date essentially means that the higher pressure prevents rolling resistance, inter alia due to the greater loss of energy when pedaling and driving. Pause. Low tire pressure can deform the tire and make it smoother on the damaged road surface.

What factors influence the ideal pressure for your tires?

Cappella: “The main factor is the effective width of the tires, think of it as an inner tube: the size depends on the wide rim and on the tire itself. In general, the wider the base, the lower the ideal pressure. … “

The choice of tires, i.e. the specific design, is also extremely important.

A cotton house heats up and behaves differently than nylon; The TPI (threads per inch) is also different. A higher TPI means finer threads which make the ribbon smoother and roll up faster.

When calculating tire pressure, vehicle weight, normal driving position, driving style, and road/weather conditions must be taken into account. 100kg cyclists riding Mallorca’s cycle lanes will have higher tire pressure than 60kg wheels covering broken potholes in the UK.

While this may seem like an incredibly complex formula with too many variables and traps, it can be easy to find a starting point for determining the ideal pressure.

A significant number of tire and rim manufacturers are introducing print guides or even easy-to-use web calculators to get started.

Zippil (SRAM) is a highly detailed calculator that allows you to combine a wide range of data, including Vittoria, to get a starting point, while working on a new program with additional data.

Thomas has a few simple tips for starting the perfect tire path: “If you are used to rolling an 8mm (8-9 bar) bar on a 23mm tire, look for 25mm tires. Tires at 1 bar (14 psi), lower the second bar 28 mm and at approximately 72 psi (5 bar) for a base of 30 mm. “

Sentuba?

One of the often-mentioned benefits without a hose is the ability to apply less pressure.

Maybe so: just look at Zipp’s 72psi lower limit for its latest 303 tubular tires for all tire sizes. Furthermore, thanks to the elimination of friction between the base and the tube, the tube system delivers a lower Crr at the same pressure as the tube.

However, the pressure differences may not be as great as you might think. For tubeless placement, Zipp recommends only 1.5 psi less than rimless Hook shaped tubes. This changes when a wireless pipe edge is used where the pressure can be reduced by almost 6 psi.

Pneumatic calculators like Zipp and Vittoria are a good place to start. Then all the experimentation and adjustment: “I recommend that all drivers test the tire pressure to determine the ideal tire pressure,” Capella says.

Also Read: cruxair.com

We say

Tire pressure has such an impact on efficiency that it really has to be something that every driver must consider. Developing a fast base is not just about optimizing it. With so much research showing that reducing pressure has a positive effect on rolling resistance and comfort, the time has come for us all to test pressure.