Therefore cyclists, who want to win in the sprint and time trial prefer rigid frame. On the other hand, a flexible frame longer flex under load, absorbing part of the energy, which is designed to move forward.
Elastic frame soften the blows of the pits and bumps, whereas the more rigid frame will transmit the rider strikes from each pit and bumps. Rigidity determines the ability of a structure to elastically deform: the greater the rigidity, the less elastic displacement of structural elements relative to each other. The quality of a bicycle frame as a structure is determined by four main factors: In the last couple of decades, especially actively looking for new materials for frames, including among aluminum alloys. The shape of the frame in more than one hundred years remained almost unchanged, although with the development of modern technologies and materials, and there are many innovations. This form is also called «diamond» – someone, it resembles a diamond and even, may be, diamond. Rama's modern bicycles are usually made of pipes, which connect to form the so-called "double triangle". However, a well-made aluminum frame will serve faithfully for many years.įrame - the main part of the bicycle and a base for mounting the rest of its parts. On the other hand, frames made of aluminum alloys are more prone to fatigue failure and less maintainable, than steel. In contrast to the steel frames, aluminum does not rust. Their increased stiffness is good for a ride in the mountains or in the sprint, but not to overcome the pits and bumps. Most Velor aluminum alloys have about the same strength and weight, as close to them in the frame price of chrome-molybdenum steel. Some steel frames, mainly children's bicycles, made from a cheaper carbon steel - they are also strong and durable, but heavier chrome-molybdenum, because thicker. Good frame made of chrome-nickel steel has the necessary strength, durability and relatively little weight. Steel frame - it's mostly from chrome-molybdenum steel frame 4130 (more American, Nearest domestic analogue - alloy structural steels according to GOST 30HMA 4543). The last two options - much more expensive than the first two. Carbon fiber is often called "carbon fiber", without bothering to translate from English: "carbon fiber".