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AUTHOR CARBON MTB 29“

REVOLT 29

For the collection of 2011 we created a hard tail carbon frame, a so called “hard tail” designated specifically for the 29“ wheels. Our aim was to launch into the market an elegantly designed frame interesting in shape and profile which is affordably priced being all the same equipped with all the elements of the present technical trends.
The frame is made again using the AUTHOR MONOCOQUE CARBON TECHNOLOGY, it is therefore the connection of front triangle with chain and seat stay to form a single-piece frame monocoque.

It is compatible, or equipped with:

  1. direct post mount (PM) on the rear chain stay prepared for 7" rotorAuthor Karbon MTB 29
  2. the rear chain stay that is narrowed to be capable of containing 30, alternatively 20 speeds (the space for a double or triple chainwheel)
  3. internal cable guide (not disturbing the design with its presence on the frame) for both derailleurs led through the top frame tube
  4. duralumin protector for down tube and chain stay against abrasion when the chain falls down accidentally
  5. 73 mm wide BB shell – forthcoming standard and enhanced rigidity of the BB shell
  6. holes in the bridges of both chain and seat stay, and a threaded
    7. hole in the frame drop out for fender stays
  7. cable guide for the rear brake on the left along the down frame
    8. tube, then along the chain stay’s top edge directly to the disc brake caliper
  8. 1,5" taper head tube

Advantages of 1.5“ taper Fork's Steerer Tube:

  1. more balanced distribution of the flexural stress in the taper fork steerer tube
  2. lower weight of steerer tube (by 20-30 g) over the 1.5“ or 1 1/8“ straight version
  3. more optimum (larger) steerer tube diameter in the point of fixing (that is, in a plane of the fork crown’s upper surface) where the maximum bending from the braking force is present

Author Karbon MTB 29

Author Karbon MTB 29In its shape, the frame is based on the strength and rigidity requirements for the frame’s construction:

  1. the narrowed top frame tube connected to the seat tube to enhance comfort
  2. chain stay’s high and straight leg profiles for a maximum rigidity of the rear structure
  3. massive area of the bottom bracket shell for immediate transmission of energy from pedal into the rear wheel’s forward movement
  4. straight legs of the seat stay for enhanced rigidity and minimizing the lateral torsion
  5. lower biaxial down frame tube for enhanced frame strength in the exposed points

The REVOLT 29 model will be offered in 3 sizes (17, 19 and 21“).