AUTHOR Ultrasonic 26 2023
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Ultrasonic 26 2023-24

Colour variants
Wheel size 26"Recommended for height 130-150 cmWeight 10,5 kgSuper lightweight alloy frame with sport geometry and single chainwheelLightweight alloy fork and disc brake TektroLightweight tire KENDA Small Block EightShimano Deore components 10 speed
other models
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Technical specification

Frametriple butted hydroformed alloy 6061 26"
Front forkalloy 6061 26"
Head partsPRESTINE Integrated 1.5" tapered
Chain WheelPROWHEEL Charm, 32 teeth, 155 mm cranks
Rear derailleurSHIMANO Deore
ShiftersSHIMANO Deore (10)
Free wheelSHIMANO CS-M4100-10, 11-46 (10)
ChainKMC X10
HubsAUTHOR Xenon, 32 holes
BrakesTEKTRO HD-M276, disc hydraulic (6" rotors)
Brakes leversTEKTRO HD-M276 WS
RimsAUTHOR Argon 26, 32 holes
Spokesstainless steel hi-ten 2.0 mm black
TiresKENDA Small Block Eight aramid 26" × 2.10"
HandlebarAUTHOR Flat Top bar, rise 0 mm, 600 mm
GripsAUTHOR kratton rubber
StemAUTHOR alloy
Seat postAUTHOR alloy (31.6)
Seat clampAUTHOR (34.9)
SaddleAUTHOR Champion CR
Weight10,5 kg /13,5"

Geometry and sizes

Size 13,5"
Min. figure [cm] 130
Max. figure [cm] 150
S/T c-t [mm] 343
S/T c-c [mm] 0
T/T h [mm] 545
T/T a [mm] 533
H/T [mm] 110
C/S [mm] 405
W/B [mm] 1020
S/T ang. [°] 73.5
H/T ang. [°] 69.5
F/L [mm] 440
B/B drop [mm] 30
B/B width [mm] 38
Reach [mm] 0
Stack [mm] 0
F/R [mm] 73
Handlebars [mm] 0
Stem [mm] 0
Cranks [mm] 0
Choose the height of the character by moving the pointer on the scale.
AUTHOR Ultrasonic 26 2023-24

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

grey13,5" = UA#42943901

additional accessories

AUTHOR Bottle cage ABC-35 X7
L&R35 X7Bottle cage Author ABC-35, easy bottle removing from side direction (left or right according the fix ... more »
AUTHOR Bottle cage ABC-L&R05
L&R05Bottle cage AUTHOR ABC-L&R05 designed for easy bottle removing from side direction. It is lightweigh ... more »
AUTHOR Sadle bag A-S381 QF9 X7
S381 QF9 X7The Author saddle bag A-S381 is the easy bag with the Quick Fix 9 bracket for easy click ON/OFF and ... more »
AUTHOR Stand AKS-500 R
mounting on Ronin
AKS-500 RKick Stand Author for rear fork fixation. Adjustable for wheel diameter 24"-29". Material AL606 ... more »
foto 1
AKS-530 RSAlloy kick stand designed for direct rear fork down tube fixation (tube profile 22 - 25mm), recomend ... more »
AUTHOR Mudguard AXP-810-Uni rear
AXP-810-UniRear mudguard AUTHOR, for seat post tube mounting, easy insertion/ slide out, fabric plastic. For si ... more »
AUTHOR Mudguard rear X-Bow
X-BowRear mudguard AUTHOR, modern shorter mudguards with universal bracket, fabric plastic. Weight 163g. more »