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" Head parts PRESTINE Integrated
1.5" tapered Chain Wheel LASCO,
32 teeth,
150 mm cranks BBParts VP COMP,
cartridge Rear derailleur SHIMANO Alivio Shifters SHIMANO Alivio (9) Free wheel SHIMANO HG400-9,
11-36 (9) Chain KMC Z9 Hubs QUANDO,
24 holes Brakes TEKTRO V Brakes levers TEKTRO alloy
Rims alloy,
24 holes Spokes black stainless steel 2.0 mm Tires KENDA Small Block Eight aramid
24" × 1.95" Pedals resin Handlebar AUTHOR Flat Top bar, rise
0 mm, 600 mm Grips AUTHOR
kratton rubber Stem AUTHOR alloy Seat post AUTHOR alloy
(31.6) Seat clamp AUTHOR (34.9) Saddle AUTHOR Champion Speed 9 Weight 9,8 kg / 12"
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
Videogallery VIDEO
Product options
blue-matt / lime 12" = UA#42943801