AUTHOR Aura XR4 2020

Technical specification

Size	500, 520, 540, 560, 580 mm
Frame	triple butted alloy 6061
Front fork	AUTHOR carbon legs, alloy steerer 1.5" tapered
Head parts	PRESTINE Integrated 1.5" tapered
Chain Wheel	SHIMANO GRX 600 46-30 teeth 172.5 / 175 mm cranks
BBParts	SHIMANO BB-RS500 BB unit
Front derailleur	SHIMANO GRX 400
Rear derailleur	SHIMANO Tiagra
Shifters	SHIMANO Tiagra (20)
Free wheel	SHIMANO HG500-10 11-34 (10)
Chain	KMC X10
Hubs	QUANDO Road Disc 12 × 100 mm thru front axle 32 holes
Brakes	SHIMANO RS305 disc mechanical (160 mm rotors)

Brakes levers	SHIMANO Tiagra
Rims	JALCO CR25D 32 holes
Spokes	stainless steel hi-ten 2.0 mm black
Tires	RITCHEY Cross Shield kevlar 700 × 35c
Handlebar	PROMAX 420 / 440 / 460 mm
Tapes	AUTHOR suede / gel
Stem	AUTHOR
Seat post	AUTHOR (27.2)
Seat clamp	AUTHOR (31.8)
Saddle	AUTHOR Guru
Speed	20
Weight	10,7 kg /54

Geometry and sizes

maxmin

~~Choose the height of the character by moving the pointer on the scale.~~

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

additional accessories

1/6

R260 ProLongThe Author saddle bag A-R260 ProLong is the universal bag with the one main compartment and one flat ... more »

1/6

S3152 SuMo X9 The AUTHOR SuMo big seat bag for big trips. Take it on the every route - easy strong fixation for ... more »

1/4

Pipe Telescope ALThe AUTHOR Pipe Telescope alloy mini pump provides fast and simple tyre inflation with a maximum pre ... more »

1/2

AKS-530 RSAlloy kick stand designed for direct rear fork down tube fixation (tube profile 22 - 25mm), recomend ... more »

1/3

ACR-16-AluA tough rear rack AUTHOR ACR-16-Alu. Equipped with adjustable legs to fit most 24” to 29” wheel ... more »

1/2

AXP-810-UniRear mudguard AUTHOR, for seat post tube mounting, easy insertion/ slide out, fabric plastic. For si ... more »

1/5

X-Bow CrossThe mudguard AUTHOR X-Bow Cross with fast and easy clipping system on seat tube will make the lazies ... more »

1/2

X-Flap SeatThe mudguard AUTHOR X-Flap with fast and easy clipping system on saddle rails will make the laziest ... more »

X-Mudy CrossFront mudguard AUTHOR, for down tube mounting, fabric plastic. more »

1/2

AXP-53High quality AUTHOR AXP full length mudguard set. Fenders are constructed from PET plastic and carry ... more »

AUTHOR Aura XR4 2020Archivní model 2020