AUTHOR Ultrasonic 26 2020-21 - tripple butted alloy frame

AUTHOR Ultrasonic 26 2020-21Tripple butted alloy frame  |  SHIMANO Deore components  |  Disc hydraulic PROMAX brakes

AUTHOR Ultrasonic 26 2020
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Technical specification

Frametriple butted hydroformed alloy 6061 26"
Front forkalloy 6061 26"
Head partsAUTHOR Integrated 1.5" tapered
Chain WheelSUNTOUR Zeron 32 teeth 160 mm cranks
Rear derailleurSHIMANO Deore
ShiftersSHIMANO Deore (10)
Free wheelSHIMANO HG500-10 11-42 (10)
ChainKMC X10
HubsAUTHOR Xenon 32 holes
BrakesPROMAX disc hydraulic (6" rotors)
Brakes leversPROMAX
RimsAUTHOR Argon 26 32 holes
Spokesstainless steel hi-ten 2.0 mm black
TiresCST B-Trail kevlar 26" x 2.10"
HandlebarAUTHOR Flat Top bar 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] 155
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
max min
AUTHOR Ultrasonic 26 2020-21

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


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Product options

silver / red13,5" = UA#42922101

additional accessories

AUTHOR Bottle cage ABC-35 X7Bottle cage Author ABC-35, easy bottle removing from side direction (left or right according the fixation). Recomended for low geometry bicycle ...AUTHOR Bottle cage ABC-35 X7AUTHOR Bottle cage ABC-L&R05Bottle cage AUTHOR ABC-L&R05 designed for easy bottle removing from side direction. It is lightweight and has a contoured inner edge which makes ...AUTHOR Bottle cage ABC-L&R05AUTHOR Stand AKS-500 RKick Stand Author for rear fork fixation. Adjustable for wheel diameter 24"-29". Material AL6061-T6. Weight 379g. This product requires ...AUTHOR Stand AKS-500 RAUTHOR Stand AKS-530 RSAlloy kick stand designed for direct rear fork down tube fixation (tube profile 22 - 25mm), recomended for bicycles with rear disk brake. Adjustable ...AUTHOR Stand AKS-530 RSAUTHOR Mudguard AXP-810-Uni rearRear mudguard AUTHOR, for seat post tube mounting, easy insertion/ slide out, fabric plastic. For sizes 26"-29", weidth 80mm. AUTHOR Mudguard AXP-810-Uni rearAUTHOR Mudguard rear X-BowRear mudguard AUTHOR, modern shorter mudguards with universal bracket, fabric plastic. Weight 163g.AUTHOR Mudguard rear X-BowAUTHOR Mudguard front X-FlapAuthor X-Flap is a lightweight and effective front mudguard for MTB suspension bikes. Compatible with 26”, 27.5” and 29” wheels, disc brakes ...AUTHOR Mudguard front X-FlapAUTHOR Mudguards AXP-04Modern plastic mudguards suitable for "V" brakes, for sizes 24"-27,5" with universal attachment. This product requires assembly by specialists.AUTHOR Mudguards AXP-04AUTHOR Sadle bag A-S381 QF9 X7The Author saddle bag A-S381 is the easy bag with the Quick Fix 9 bracket for easy click ON/OFF and one main compartment. Designed for long satisfied ...AUTHOR Sadle bag A-S381 QF9 X7