AUTHOR Aura XR4 2021-22

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 (20)
Shifters	SHIMANO GRX 400 (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 kotoučové mechanické (160 mm kotouče)

Brakes levers	SHIMANO Tiagra
Rims	JALCO SRD 21 32 holes
Spokes	black stainless steel 2.0 mm
Tires	PANARACER Gravel King SK Sport 700 × 38c
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	10,8 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

~~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

Availability

	Colour variant	Size	In stores	Purchase	City	Contacts on seller	Model code
		52	1 shop				42941303
	▪ AXIT bike sport		in stock	buy now	Náchod	491 426 020, axit@axit.cz	map
		54	3 stores				42941304
	▪ Cyklo sport Stratílek		in stock	buy now	Hradec Králové	601 379 902, cyklohk@stratilek.cz	map
	▪ Sedláček s.r.o.		in stock	buy now	Příbram 1	318 621 473, info@cyklosport-sedlacek.cz	map
	▪ Flystork		in stock	buy now	Třebíč	530 513 203, obchod@flystork.cz	map
		56	3 stores				42941305
	▪ DOMINO STORE CZ,s.r.o.		in stock	buy now	Český Těšín	602 546 780, dominosport@dominosport.cz	map
	▪ Velo Vít Sport		in stock	buy now	Kostelec nad Orlicí	494 321 123, prodejna@kolakostelec.cz	map
	▪ AXIT bike sport		in stock	buy now	Náchod	491 426 020, axit@axit.cz	map
Poznámka: Stav dostupnosti kola se aktualizuje 1× denně v ranních hodinách.

additional accessories

1/15

250 Kč ~~299 Kč~~ PRO33 g • The AUTHOR PRO Bottle Cage is light, designed for easy bottle entry / removal on the go. Great to ... more »

1/11

450 Kč ~~595 Kč~~ X26 KarbonCreated using AUTHOR X26 Carbon - tech construction is superbly strong and incredibly light. Elegant ... more »

1/9

425 Kč ~~475 Kč~~ R255 Tank Bag MPPThe AUTHOR Tank Bag MPP ensures your camera is at hand in any situation. It provides easy, hassle-fr ... more »

1/6

425 Kč ~~499 Kč~~ R260 ProLongThe Author saddle bag A-R260 ProLong is the universal bag with the one main compartment and one flat ... more »

1/4

399 KčR270The Author saddle bag A-R270 16" is the universal bag with the one main compartment and one flat poc ... more »

1/6

895 KčS3152 SuMo X9 The AUTHOR SuMo big seat bag for big trips. Take it on the every route - easy strong fixation for ... more »

1/3

399 KčBoosterMini Pump Author Booster. Changeable head allows usage with all type of valves (AV, FV, DV). Fixa ... more »

1/2

399 KčAKS-530 RSAlloy kick stand designed for direct rear fork down tube fixation (tube profile 22 - 32 mm), recomen ... more »

AUTHOR Flashing light A-Square USB CobLed 100 lm

1/5

499 KčSquare 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 »

1/3

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

1/2

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

1/5

160 Kč ~~199 Kč~~ X-Bow CrossThe mudguard AUTHOR X-Bow Cross with fast and easy clipping system on seat tube will make the lazies ... more »

1/2

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

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

AUTHOR Aura XR4 2021-22Archivní model 2021-22

Technical specification

Geometry and sizes

Availability

Product options

additional accessories