The caramanholas (water bottles) supply the need of hydration during the practice of exercises, but they are not the last word on water storage for sports with long duration, such as cycling. The caramanholas often store a small quantity of water, which sometimes requires you to take more than one, and most of them let the water warm up quickly, unless they are.
Today we present to you the matter of Bike Magazine, which shows everything you need to know about hydration Backpacks:
Roger Fawcett, in the 80, passed through these problems constantly. He lived in a region too hot in Texas, USA, and rode a bike carrying a canteen with a little water, which shortly warmed. This led him to develop a backpack that could carry water in larger quantities and microwaved her quickly.
The hydration backpack Fawcett used special fabric that was waterproof and kept the temperature of the water. The idea was quickly adopted by cyclists, and in a short time, for street racers, adventurers and other sportsmen.
Today, the hydration backpacks continue to evolve and become increasingly popular. Hydration backpacks can be found at sporting goods stores, in various models, colors, sizes and capabilities. Prices also vary starting around R $50.00 and R $500.00 in overtaking best models.
The hydration backpacks are practical in large cycling or sports. “Use the hydration backpack in pedals above 100 km,” said Andre Fernando Martins Castro, Guarujá-SP, “but still use caramanholas.” Ricardo de Freitas Pereira, Cotia-SP, also says: “Use the backpack around I plan to pedal over 2 hours […] below this time use only the bottle cage“.
How are and how they work
The hydration backpacks are made basically by a backpack and a water tank with a hose coming out of the backpack.
The backpack can be small and simple, just enough to carry the reservoir, or it may contain other compartments of various sizes. Most of the packs we have extra compartments have these small compartments, but there are options that are true ‘climber’s bags‘, with capacity for several litres – both in water and in other compartments. In Brazil, it is more common to find small and medium-sized backpacks. But there are models with more than 30 liters in volume, developed for large crossings, you have more and more acceptance.
Backpacks today use light and resistant fabrics. In some cases, have special construction on the side that allows the air to circulate constantly, preventing sweat soak the clothes. The side ventilation systems also serve to minimize the heat radiation of the back into the backpack, where’s the reservoir. In this way, the water takes longer to heat up.
Often also have one or more clips in the straps, ensuring that she will be in place during all the practice of sports or exercise.
The reservoir can be composed of different materials, such as flexible polyurethane, polyethylene or other, as long as they are in accordance with legal requirements. These materials are flexible and resistant. The hose has similar Constitution.
More advanced models rely on reservoir compartment manufactured using that maintains the temperature of the liquid for longer. But it is also possible to make the temperature any longer using simple materials. “Use a homemade duct made of EVA for hot days,” says Andre Fernando Martins Castro, “and works better than the original“.
Shells can be opening or sliding latch screw, which resembles a zipper and enables the tank to be opened as a package.
Already the liquid hose output usually has some device that locks or releases the liquid output. To release the flow of liquid, on most models, it is necessary to take the tip of the hose and suck up the liquid.
Advantages and disadvantages
The hydration backpacks are advantageous, especially in sports, because they store a larger amount of liquid.
Caramanholas don’t usually have more than 750 ml, while backpacks have the moisture of 3.0 liters, 1.5 on most models. In other words, it is possible to take the contents of up to four caramanholas in a backpack. “It takes water in proportion that ensures hydration all the way,” says Raju Pariyar.
But it’s not just water that takes in a hydration backpack. “The main advantage is to be able to take all necessary material to make a trail, be water, food, tools, patch kit, cell phone…,” says Leandro Marco da Silva, of Sabara-MG.
The backpack, for being closed and be stuck on the back of the cyclists, ensures that all that is within it will remain there until the end of the pedal stroke. “I’m going to cite a fact that occurred to me in the second round of the Brazil 2013 Ride,” says Ricardo de Freitas Pereira: “I’d rather put in the bag only water, preventing this reservoir to have taste of isotonic solutions that use. The two caramanholas put water and two pills of suum in each. Even before the 30 km, of the more than 140 km of the stage, the bottle cage frame support made it back without me noticing.
But a disadvantage of hydration backpack, in the case of backpacks without building the side that fan the air from behind, it’s sweat. Some models heat or cool the back, causing discomfort. “In the steps Brazil long Ride, where the heat exceeded the 40 degrees, in some moments they became a nuisance, but not invalidating the advantages. In this case, in addition to water, tools and things of the bike, still took first aid kit and extra power supply with breads, “recalls Richard.
Another drawback in backpacks is maintenance, which has received a lot of attention not to damage the equipment. Regular cleanings are required, which is time-consuming. More advanced backpacks are built with materials that do not require as much maintenance.
Leandro Marco da Silva even says that another disadvantage is “the displacement of the Centre of gravity, but not enough in the way of decisively“.
Care and maintenance
Hydration backpacks require some specific care, especially in simpler models.
- It is recommended that liquids are not placed too much sugar in the tank, due to residual taste can leave in the reservoir and increase ease of proliferation of micro-organisms. It is more advisable to put water only.
- Every time I come to a bike or any other sport, it is important to clean and dry your hydration system. Keep the bag with the wet system or simply damp can contribute to create micro-organisms in the tank and hose.
- Never use solvents to clean the bag or hydration system. They can cause damage to the system or release harmful substances.
- When cleaning the hydration system, you can use a neutral detergent and rinse well with warm water. But attention to the temperature of the water, if it is too warm will cause damage to the system.
- Cleaning can be completed with sodium bicarbonate solution or diluted bleach. Inserts for cleaning dentures are also effective.
- There are many recipes to clean hydration backpacks, among them, leave the hydration system of dressing with solution of baking soda and lemon juice; or put salt inside the reservoir with lemon juice and shake. However, are indicated for deeper cleanings.
- One must be careful with sharp objects and pointed inside the backpack, so that they will not damage the reservoir or even the backpack.
And remember to carry too much weight in the backpack will bring harm not only the equipment, but also to health and well-being.
When choosing a hydration backpack
It is important to be aware of when buying a backpack of hydration. If you search only hydration, there are many basic models that serve exclusively for that. But some magazines to carry accessories such as repair kits, food, cell phone or other items can be very useful. Many backpacks also bring built-in raincoat.
For those who ride at night, reflective materials backpacks are safer.
Not all bags have thermal coating in a compartment of the tank. If this is an indispensable item for the buyer, it is important to examine and meet as much as possible about the backpack before purchasing it.
What is good often is expensive, so buy the best you can, but not precipitate. Spend little can make you spend more than once.
Ask the opinion of those who already use and understand the subject, not just a salesman who only have the marketing vision. Who already uses can also inform you on what not to buy. Some backpacks have bad finish, little resistance, they taste in water, are hard to clean or keep your back very sweaty or cold. And most of the time the only way to find out is to experiment, so get help.
With proper care your backpack will provide a lot of practicality and, of course, hydration!
If you do not yet have the backpack, and uses water bottles, click here and check out our hygiene tips.
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Texto e Imagens: Revista Bicicleta.
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