Geometry Descriptions Gideline :
1. Head Angle:
|Size||small/ 15.3"||medium/ 16.8||large/ 17.8||extra large/ 19.3|
|Seat Tube length||389||427.2||452||490|
|Horiz. Toptube Length||565||585||600||620|
|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.
10. Seat tube Length (or frame size):
The lenght between the centre of the bottom bracket and the top of the seat tube.
Frame may differt from real one. Use for reference only.
FORM SmoothWall CARBON
Custom Rocky Mountain FORM C13 High Modulus SmoothWall construction. 100% designed, engineered and tested in house by our R&D team to ensure the lightest, stiffest frame and the best ride quality. In 2011, we unveiled SmoothWall construction to the world with the introduction of the Element RSL, and since then, it has won unanimous praise for its incredible light weight and superior stiffness.
Smoothwall construction is achieved by sculpting the inner surface of the frame as carefully as the outer, with the help of an inner mold, as opposed to the traditional air bladder. This results in no excess resin, fibers or filler, meaning no stress risers or extra weight.
The most important characteristic of SmoothWall technology is that it enables us to construct frames with the highest carbon layup density. SmoothWall’s super high fiber to resin ratio with maximum compression of the pre-preg carbon layers results in the lightest and stiffest construction possible.
SmoothWall also allows us to use full length (uncut) fibers, yielding a stronger frame. This all adds up to one of the most sophisticated carbon frames in the world.
Vertex RSL utilizes a precise carbon layup schedule, using multiple types of carbon weaves in specific locations to maximize stiffness and impact resistance while minimizing weight.
We were able to optimize the ride quality of Vertex RSL through our FORM Carbon design process. By carefully selecting the modulus and layup of the frame, we created a super light and stiff ride in an aesthetically beautiful package.