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AUTHOR Aura XR4 2021-22
aura xr4 5460
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AUTHOR Aura XR4 2021-22aura xr4 5460aura xr4 aut5454 viewdeaura xr4 aut5455 viewdeaura xr4 aut5456 viewdeaura xr4 aut5457 viewdeaura xr4 aut5458 viewdeaura xr4 aut5459 viewdeaura xr4 aut5461 viewde
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AUTHOR Aura XR4 2021-22Archivní model 2021-22

Colour variants
Alloy hydroformed triple butted frame, carbon forkSHIMANO GRX 400/TIAGRA, 20 speed, compact chainwheelPANARACER GRAVEL KING SK SPORT foldable tires
other models
Interested in other model`s year?

Technical specification

Size500, 520, 540, 560, 580 mm
Frametriple butted alloy 6061
Front forkAUTHOR carbon legs, alloy steerer 1.5" tapered
Head partsPRESTINE Integrated 1.5" tapered
Chain WheelSHIMANO GRX 600 46-30 teeth 172.5 / 175 mm cranks
BBPartsSHIMANO BB-RS500 BB unit
Front derailleurSHIMANO GRX 400
Rear derailleurSHIMANO Tiagra (20)
ShiftersSHIMANO GRX 400 (20)
Free wheelSHIMANO HG500-10 11-34 (10)
ChainKMC X10
HubsQUANDO Road Disc 12 × 100 mm thru front axle 32 holes
BrakesSHIMANO RS305 kotoučové mechanické (160 mm kotouče)
Brakes leversSHIMANO Tiagra
RimsJALCO SRD 21 32 holes
Spokesblack stainless steel 2.0 mm
TiresPANARACER Gravel King SK Sport 700 × 38c
HandlebarPROMAX 420 / 440 / 460 mm
TapesAUTHOR suede / gel
StemAUTHOR
Seat postAUTHOR (27.2)
Seat clampAUTHOR (31.8)
SaddleAUTHOR Guru
Speed20
Weight10,8 kg / 54 cm

Geometry and sizes

Size 480 500 520 540 560 580
Min. figure [cm] 152 160 168 176 183 190
Max. figure [cm] 162 170 178 185 193 205
S/T c-t [mm] 480 500 520 540 560 580
S/T c-c [mm] 440 460 480 500 520 540
T/T h [mm] 515 530 545 560 580 595
T/T a [mm] 502 518 532 546 563 576
H/T [mm] 100 120 140 160 180 200
C/S [mm] 425 425 425 425 425 425
W/B [mm] 1002 1014 1020 1031 1042 1046
S/T ang. [°] 75 74.5 74 73.5 73 72.5
H/T ang. [°] 70.5 70.5 71 71 71.5 72
F/L [mm] 400 400 400 400 400 400
B/B drop [mm] 71 70 70 69 68 68
B/B width [mm] 0 0 0 0 0 0
Reach [mm] 373 378 382 386 395 397
Stack [mm] 530 548 568 586 606 627
F/R [mm] 45 45 45 45 45 45
Handlebars [mm] 0 0 0 0 0 0
Stem [mm] 0 0 0 0 0 0
Cranks [mm] 0 0 0 0 0 0
maxmin
silueta
Choose the height of the character by moving the pointer on the scale.
AUTHOR Aura XR4 2021-22

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

beige-matt50 = UA#42941302   52 = UA#42941303   54 = UA#42941304   56 = UA#42941305   58 = UA#42941306

additional accessories

AUTHOR Bottle cage ABC-PRO
AUTHOR Bottle cage ABC-PRO
AUTHOR Bottle cage ABC-PRO
AUTHOR Bottle cage ABC-PRO
AUTHOR Bottle cage ABC-PRO
foto 1
packing
foto 1
packing
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packing
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packing
foto 1
packing
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PRO33 g • The AUTHOR PRO Bottle Cage is light, designed for easy bottle entry / removal on the go.  Great to ... more »
AUTHOR Bottle cage ACP-X26 Karbon
AUTHOR Bottle cage ACP-X26 Karbon
AUTHOR Bottle cage ACP-X26 Karbon
AUTHOR Bottle cage ACP-X26 Karbon
AUTHOR Bottle cage ACP-X26 Karbon
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foto 2
front
front
front
front
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X26 KarbonCreated using AUTHOR X26 Carbon - tech construction is superbly strong and incredibly light. Elegant ... more »
AUTHOR Frame bag A-R255 Tank Bag MPP
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foto 5
foto 6
dimensions
foto 7
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R255 Tank Bag MPPThe AUTHOR Tank Bag MPP ensures your camera is at hand in any situation. It provides easy, hassle-fr ... more »
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AUTHOR Frame bag A-R260 ProLong
dimensions
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foto 2
right side
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R260 ProLongThe Author saddle bag A-R260 ProLong is the universal bag with the one main compartment and one flat ... more »
AUTHOR Frame bag A-R270
front fixation
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foto 2
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R270The Author saddle bag A-R270 16" is the universal bag with the one main compartment and one flat poc ... more »
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AUTHOR Saddle bag A-S3152 SuMo X9
dimensions
foto 1
side L
side R
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S3152 SuMo X9 The AUTHOR SuMo  big seat bag for big trips. Take it on the every route - easy strong fixation for ... more »
AUTHOR Hand pump AAP Booster
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1/3
BoosterMini Pump Author Booster. Changeable head allows usage with all type of valves (AV, FV, DV). Fixa ... more »
AUTHOR Stand AKS-530 RS
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AKS-530 RSAlloy kick stand designed for direct rear fork down tube fixation (tube profile 22 - 25mm), recomend ... more »
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AUTHOR Head Light A-Quantum 700 lm USB
package contents
on helmet
top
battery indicator
lighting
front
side
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QUANTUM 700 lm USBCREE XML2 LED 700 lm • USB • IndicatorThe Author Quantum 700 lm is a USB rechargeable headlight with a massive 700 lumens output. This lig ... more »
1
AUTHOR Flashing light A-Square USB CobLed 100 lm
package contents
lighting
lighting 2
1/5
Square CobLed 100 lm USBCOB LED 100 lm • Alloy case • Battery indicatorThe AUTHOR SQUARE features superior visibility with hi-end COB LED technology, providing a new leve ... more »
AUTHOR Carrier ACR-16-Alu
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ACR-16-AluA tough rear rack AUTHOR ACR-16-Alu. Equipped with adjustable legs to fit most 24” to 29” wheel ... more »
AUTHOR Mudguard AXP-810-Uni rear
packing
1/2
AXP-810-UniRear mudguard AUTHOR, for seat post tube mounting, easy insertion/ slide out, fabric plastic. For si ... more »
AUTHOR Mudguard rear X-Bow Cross
adjusting
assembly
top
back
1/5
X-Bow CrossThe mudguard AUTHOR X-Bow Cross with fast and easy clipping system on seat tube will make the lazies ... more »
AUTHOR Mudguard rear X-Flap Seat
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X-Flap SeatThe mudguard AUTHOR X-Flap with fast and easy clipping system on saddle rails will make the laziest ... more »
AUTHOR Front carrier ACR-F14-Alu
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1/5
ACR-F14-AluA tough tubular aluminium front rack. Designed specifically for front suspension fork with brake piv ... more »
AUTHOR Mudguard front X-Mudy Cross
X-Mudy CrossFront mudguard AUTHOR, for down tube mounting, fabric plastic. more »