Frame Materials and Geometry

Posted by tan xiao yan on

The frame is the most important part of the bike, and not all frames are all the same. You can tell the difference among the frame materials by later period performance and use of a bike. This article will give a brief introduction to frame materials.


High tensile steel is cheaper, strong, and sturdy. It is usually found on basic and entry level city bikes and youth bikes. This kind of material is often heavy.

The heat treated steel is the strongest and supple with less expensive spend. It is lighter and stronger than high tensile steel and decreases the great road vibrations.

While the aluminum is a lighter and stiffer material than steel, often used in many bicycle frames, relatively expensive. For example, the 6061 is a type of aluminum that is resistant to stress cracking, so it is an ideal material to make bike tubes shaped.

Carbon or carbon fiber frames are more expensive than the previous, which are light, strong, and more resistant to fatigue than aluminum alloys. It is widely believed that carbon is the best material for bicycle frames on the market. Some people afraid that the lifespan of carbon bikes won’t be as long as other materials, but after 25 years of improvement, fewer worries come out. Carbon is the lightest and best riding bike material.


The fender and rack mounts are related to many our performance and recreation, and level of bicycles. When you want to carry cargo on a rack, it is much helpful, rather than with a backpack and the mount fenders to decrease from the road spray on rainy days. Internal cable routes through the internal frame, affecting the performance of the race mountain bikes and road bikes. Not only does it make your bike look clean, but also help with aerodynamics and housing wear. The boost is a new improvement in mountain bike technology widening the front hubs and rear one. The spoke angles bring stiffer wheels in every size than in traditional-spaced hubs and make shorter chainstays and wider tires convenient.


Geometry is sometimes hard to categorize. Each size and model have its own geometry. You can use the size guidance to define what size to look at. You should pay more attention to your clearance over the top tube, and the distance from the saddle to the handlebars. You can see the how steep or slack the head tube is from the headtube angle. The higher the number, the steeper the front ends. When the number is low at 68 degrees or below, it is in the state of slack. As we know, when bikes have slack headtubes, they are inclined to be more aggressive mountain biking. While a headtube angle near 70 degrees would be produced for the purpose of recreation and no aggression. Other factors to consider is the place and the way will you ride your bike, and as well as your weight. If you are over the 200-pound mark, you want to buy a bike with higher strength frame material. When considering the money, the best bang for the buck is aluminum 6061.