Are you looking for the best in its category? Author Ultrasonic 24 on a very light triple butted frame with so-called hydroforming technology, which guarantees perfect strength, durability and significant weight savings. Performance-oriented racing geometry, lightweight alloy fork, KENDA Kevlar tires and SHIMANO Alivio components
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Technical specification
Size | 12" |
---|
Frame | triple butted hydroformed
alloy 6061 24" |
---|
Front fork | alloy 6061 24" |
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Head parts | PRESTINE Integrated
1.5" tapered |
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Chain Wheel | LASCO,
32 teeth,
150 mm cranks |
---|
BBParts | VP COMP,
cartridge |
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Rear derailleur | SHIMANO Alivio |
---|
Shifters | SHIMANO Alivio (9) |
---|
Free wheel | SHIMANO HG400-9,
11-36 (9) |
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Chain | KMC Z9 |
---|
Hubs | QUANDO,
24 holes |
---|
Brakes | TEKTRO V |
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Brakes levers | TEKTRO alloy |
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Rims | alloy,
24 holes |
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Spokes | black stainless steel 2.0 mm |
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Tires | KENDA Small Block Eight aramid
24" × 1.95" |
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Pedals | resin |
---|
Handlebar | AUTHOR Flat Top bar, rise
0 mm, 600 mm |
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Grips | AUTHOR
kratton rubber |
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Stem | AUTHOR alloy |
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Seat post | AUTHOR alloy
(31.6) |
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Seat clamp | AUTHOR (34.9) |
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Saddle | AUTHOR Champion |
---|
Speed | 9 |
---|
Weight | 9,8 kg / 12" |
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Geometry and sizes
Size | 12" |
---|
Min. figure [cm] | 125 |
---|
Max. figure [cm] | 140 |
---|
S/T c-t [mm] | 305 |
---|
S/T c-c [mm] | 0 |
---|
T/T h [mm] | 500 |
---|
T/T a [mm] | 482 |
---|
H/T [mm] | 110 |
---|
C/S [mm] | 400 |
---|
W/B [mm] | 965 |
---|
S/T ang. [°] | 73 |
---|
H/T ang. [°] | 70 |
---|
F/L [mm] | 372 |
---|
B/B drop [mm] | 25 |
---|
B/B width [mm] | 68 |
---|
Reach [mm] | 0 |
---|
Stack [mm] | 0 |
---|
F/R [mm] | 45 |
---|
Handlebars [mm] | 0 |
---|
Stem [mm] | 0 |
---|
Cranks [mm] | 0 |
max
min
The recommended size and stature are just indicative. It is recommended to always consult your choice with the dealer.
- S/T c-t - seat tube (center-top), length of the seat tube from the middle of BB parts to its peak
- S/T c-c - seat tube (center-center), length of the seat tube from the middle of BB parts to an axle of the upper tube
- T/T h - top tube horizontal, horizontal lenght of the upper tube
- T/T a - top tube actual, real lenght of the upper tube
- H/T - head tube, head tube lenght
- C/S - chain stay, chain brace lenght
- W/B - wheel base, wheelbase (front and rear axle lenght)
- S/T ang. - seat tube angel, angle between the seat tube axis and an imaginary line connecting the axes of the front and rear wheel
- H/T ang. - head tube angel, angle between the head tube axis and an imaginary line connecting axes of the front and rear wheels
- F/L - fork length, fork length from the head parts bottom to the middle of the front wheel
- B/B drop - bottom bracked drop, lenght between an imaginary line connecting wheels centers and BB parts, measured from BB parts
- F/R - fork rake, distances between the head tube axis and fork axis measured at center of the front wheel, so-called. off set
Product options
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blue-matt / lime | 12" = UA#42943801 |