Buzz
The Michelin 12314 is a pump equipped with a dual-piston system, ensuring fast and powerful inflation compared to single-piston or small-piston pumps. Due to its quick and powerful advantages, this pump is often chosen by pickup truck and off-road vehicle users with large tires. According to our quick test, it is three times faster than a conventional electric pump.In exchange for this significant time saving, the size of the pump is larger, heavier, and more expensive. The old pump I used had a price of around $50 and weighed only 600g. In contrast, the Michelin 12314 pump is priced at around $1.6k, weighing 2.8kg.
Included as a bonus are 2 additional pump heads designed for inflating bicycle tires or leather balls, etc.
At the top of the pump is the area housing the display screen along with adjustment buttons. This includes buttons for switching pressure units (Bar - PSI - kPA), setting the desired pressure level for automatic shutoff, turning on the light, and finally, the power button – also serving as the start button to initiate the inflation process.
On the back, an integrated LED light will provide illumination, proving to be particularly useful during nighttime use.
Although the pump's width is modest at 30.4cm, many car models feature convenient compartments under the trunk that can easily accommodate it. However, I would advise everyone to check their trunk space before deciding to purchase it.
In the trunk compartment of my car, I usually store the bike pump and a spare bike jersey. It doesn't affect the main trunk space and remains secure during travel. I placed my old Michelin 12266 pump next to the Michelin 12314 in the storage compartment to give you a better idea of the size. I also suggest choosing a pump that doesn't occupy unnecessary space if it's not essential.
The pump design includes a carrying handle, which proves useful when you need to carry it for longer distances. With a weight of 2.8kg and a large size, having a handle is essential.Actual Performance of Michelin 12314 Pump
Firstly, let's address the noise issue: Compared to most small pumps I've used before, this pump is remarkably quiet. In practical terms, it's considerably quieter than the Michelin 12266 model. I measured it with my Apple Watch, and the Michelin 12314 registered around 76-78 db when sitting close, while the Michelin 12266 reached a noise level of 84-86 db. This difference is substantial in measured decibels.- Sedan with tire size 225/35/R20, inflation from 0 - 2.6 Bar: 2 minutes and 30 seconds. The 12266 pump took 4 minutes and 30 seconds for the same task.
- Tire size: 305/40/R20, inflation from 0-2.5 Bar: 5 minutes and 2 seconds. The 12266 pump required 16 minutes and 9 seconds for the same inflation.
Conclusion
In practical usage, there are few instances where you need to inflate tires from 0 pressure. For example, if you accidentally hit a nail, the car will alert you at around 2.0 bars, and you'll need to top it up to 2.6 bars. The additional inflation time for this top-up is also not much compared to inflating from 0.
However, if you drive an SUV/pickup with large wheels, investing in this pump, though more expensive and heavier, as well as taking up a bit more space, is quite reasonable. The time savings of up to 2/3 are significant. While there may be larger or dual-piston pumps in the market, I find this type remarkably easy to purchase, available on most online platforms, making it easily accessible for everyone.Guide to Proper Tire Inflation for Cars
To inflate your tires to the correct pressure, first, identify the tire size your car is using and cross-reference it with the manufacturer's specifications. Typically, this information is located on the side of the door frame or on the fuel cap of the car. Find your tire size and set the pump pressure accordingly to inflate as recommended.Inflating the tires to the recommended pressure helps the car save fuel, ensures even tire wear, stability during high-speed operations, and more accurate steering. Driving with low tire pressure may offer a slightly smoother ride depending on road conditions, but it can lead to uneven tire wear, or worse, more significant issues like cracking (due to excessively low pressure). Particularly, severe situations like hitting a pothole or a curb can easily result in tire damage or tire bulging.
I set the pump pressure for the front tires at 2.6 bars and 2.8 bars for the rear ones (minimum for carrying three passengers). When the wheels are hot from driving, the pressure may increase by 0.1 to 0.2 bars, but it doesn't impact anything due to the high tire pressure limit. Comparing this to the recommended pressure for five passengers, which is 3.0 to 3.5 bars, there's a significant difference. Hence, I drive with confidence and haven't encountered any regrettable incidents.
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