The choice of bicycle bag! ?

Choosing good and bad cycling backpacks, from a scientific point of view, cycling backpacks must have backpack system, load-bearing system, fabric selection and ventilation row design. From the demand of outdoor riding, backpack accessories need to have important factors such as water bag outlet, sleeping bag bin, rain cover and helmet fixing equipment. Scientific Analysis of Riding Backpack: 1, Backpack System: Backpack Backpack System consists of backboard, shoulder strap, chest strap and belt, and the backboard is used to support the whole backpack. A good backpack can evenly distribute the weight of the backpack. Shoulder straps, waist pads and chest straps play an important role in fixation and must be adjustable. According to different personal body types, different debugging can be carried out to better fix and reduce friction. In addition, the parts of the shoulder strap and the waistband that contact with the inner skin should be soft and elastic, effectively changing the up-and-down friction of the upper shoulder strap or waistband from elastic vibration. The chest strap not only needs to be adjustable in length, but also its fixed point on the chest strap should be set as a slide rail, which is convenient to adjust to a comfortable position. 2. Loading system: Backpack usually consists of main bag, side bag and attached bag. Bicycle bags will be made smaller, generally less than 30L, generally 10L, 14L, 18L, 20L, 25L, etc. Therefore, through the bag design of each part of the backpack, articles can be better distributed, the capacity can be reasonably utilized, and of course, it is more important to carry. 3. Fabric selection: Generally, cycling bags are made of PU-coated nylon fabric (such as PU-coated 450D polyester and 2 10D nylon), which is waterproof, dry-resistant, wear-resistant and tear-resistant. Fabric is the main determinant of backpack durability. I don't think anyone wants to meet a donkey halfway. The backpack is broken. 4, ventilation and perspiration system design: when riding, the backpack is buckled behind the back. If the back is not ventilated during riding, it will be quite uncomfortable to get wet and sweaty on the back. A grid resin plate is added to the backpack to separate the back from the bag. TTGO's cycling bag adopts 3D breathable mesh design on the inside of shoulder straps and waist pads, which gives air flow space and effectively keeps the contact parts of the body dry. From the analysis of outdoor riding demand: 1, helmet fixing net bag: helmet net bag is used to fix helmet. When riding a horse, I sometimes go to the Woods or to some low-lying places. Wearing a helmet can't judge the height correctly. Moreover, after long-term exercise, the head will sweat. When taking off the helmet, use a net bag to fix it on the bag. 2. Water bag device. A special water bag interlayer is designed in the bag, which also plays a fixed role to prevent the water bag from moving in the bag when the road is bumpy. The outlet of the water bag is convenient for drinking water anytime and anywhere when riding. The shoulder strap is designed with two water bag straw fixing buckles, which can fix the straw on the left or right side according to the user's habits, so as to avoid the straw being blown around by the wind when it is exposed. Rain cover and sleeping bag box: When it rains, rain cover is necessary to protect the backpack and its contents from getting wet. The sleeping bag bin is convenient for putting sleeping bags, so you can take things conveniently and quickly through the zipper connected with the main bag even if you don't put sleeping bags. 3. High-quality webbing and fasteners: High-quality webbing has smooth surface, soft texture, moderate flatness, strong bearing capacity and can bear more than 200 kilograms of tension.

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