Geometry of a bike and Handling: The 4 most important factors

geometry of a bike

Geometry of a bike and Handling: The 4 most important factors is the best bike us-

Would not it be awesome to look at the geometry of a bike and see if the bike fits you? How it behaves in curves, how directly it can be controlled, how agile it is? Darren Baum von Baum Cycles is an expert when it comes to the best bike us to frame geometry and handling of bikes. He gave us four key factors that most affect the ride of a bicycle.

First of all, a short definition. By handling, we understand the basic characteristic of how much drive is actively needed for the bike to make a change in direction. Direct, fast handling thus means a high degree of agility and sensitivity in the case of steering influences, while a stable driving behavior is more characterized by sluggish handling.


So handling has nothing to do with how yielding a bike is or how it “feels”.

The myth of the fork bends

One of the most persistent myths in the world of cycling is the influence of the so-called “Rake”, often called fork-bending. This describes the distance between the axle of the front wheel and the center of the steering axle. A lower lead (usually between 40 and 55mm for racing bikes) means faster, more direct handling for many, which is simply wrong. The argument that, for example, trekking best bike us have a high Gabelvorbiegung and do not have such a direct handling, for Darren is incomprehensible since most touring bikes can handle extremely agile. Track bikes, on the other hand, move at the other end of the spectrum and have a rather sluggish ride. So there has to be something else that describes the handling of a bike. If you best bike reviews of BMX bike and activity-


The most important factors for handling

  • Trail
  • Bottom Bracket Drop / Bottom Bracket Drop
  • Chainstays
  • Head length and position


Trail (steering angle x fork bend)

The product of steering angle and Gabelvorbiegung is the so-called Trail. The trail is much more suited to representing the steering behavior of a bicycle compared to the geometry of a bike the pure forerun. It can also be thought of as the contact point of the wheel in relation to the control axis. More trails lead to a sluggish handling, less to a more direct, agile driving. A higher fork bend reduces the trail and allows a more direct front-wheel drive. A high trail is more advantageous at faster speeds Checklist for bike tours because of better stability, but slow speed makes it slow and cumbersome. The trail is usually enough for racing bikes from 50 to 63mm. The exact center, 57mm, is considered by many manufacturers and experts to be the best combination of stability and agility.


Bottom Bracket Drop / Bottom Bracket Drop

The bottom bracket height indicates the distance between the bottom bracket and the bottom, the bottom bracket drops the distance between bottom bracket and wheel axles. In general, the lower the bottom bracket, the better the smoothness and controllability best bike us of the wheel at high speed – the lower center of gravity makes handling more stable. A disadvantage of the lower bottom bracket, however, may be that you may not be able to fully pedal in corners because it is just too close to the ground. For races geometry of a bike, it is therefore advantageous if the bottom bracket is mounted slightly higher in order to get through the corners faster at full speed (especially on track bikes or cyclotrons bikes). If the bottom bracket is higher up, it is more difficult due to the more direct handling,

So if a deep bottom bracket and a small trail meet, the rear triangle acts a bit sluggish while the front changes the direction even with the smallest steering movements. This results in uneven handling and a difficult to control the bike, especially at high speeds. The trick is to find the perfect balance between the two handling factors and to make the driving behavior evenly and homogeneously at the front and back possible.


The longer chainstays also have a big impact on the handling the best bike us. The advantage of longer chainstays, for example, the improved traction in climbing passages or faster cornering. Shorter chainstays, on the other hand, make the bike stiffer and more agile, as the rear wheel has to travel a shorter distance and the center of gravity is more on the best rear wheel mudguard. Since it did not give the material earlier, was increasingly put on shorter struts and thus a stiffer frame to withstand the increased power of the driver can. Today it is no longer a problem to be able to use longer chain stays with sufficient rigidity; however, the higher weight is still a reason for many bikes with shorter struts. Darren Baum recommends flexible,


Head length and position

The stem is actually not part of the geometry of a bike the frame itself, but its position is also crucial for the handling of the bike. Rule of thumb: The longer and deeper the stem, the more stable the handling. Of course, the stem should not be set so that you can barely get to the handlebar.


Although these factors give us some more information about the relationship between frame geometry and best bike us handling, we are still far from being able to judge the driving behavior of a bike purely on the basis of the numbers in the geometry overview. That means testing, testing, and testing. And that’s just as well. Nevertheless, the analysis of the four factors provides a good starting point to find out which bike is right for you.

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