Geometry Descriptions Gideline :
1. Head Angle:
|Seat Tube length|
|Horiz. Toptube Length|
|Seat Tube (center-center)|
The angle at which the Head Tube is oriented in relationship to the ground.
2. Seat Angle:
The angle at which the Seat Tube is oriented in relationship to the ground.
3. Horizontal Top Tube Length:
The distance from the centre of the top of the Head Tube projected horizontally to the intersection where it meets the Seat Tube axis.
4. Head Tube Length:
The length of the Head Tube.
5. Chainstay Length:
The distance from the centre of the Bottom Bracket to the center of the rear dropout.
6. Bottom Bracket Drop:
The vertical distance from the Bottom Bracket centerline to the wheel axle plane. For some bikes this is a negative number indicating a Bottom Bracket Rise.
7. Standover Height:
Distance from the top edge of the Top Tube to the ground measured at approximately the midpoint of the Horizontal Top Tube Length distance.
The shortest distance between the front axle and the Bottom Bracket centerline. Note this distance is not measured parallel to the ground, but rather is the straight-line distance between these two points.
The distance from the rear axle to the front axle. The line formed by the joining of these two points serves as a basis of measurement for the Head and Seat Tube angles.
Frame may differt from real one. Use for reference only.