AUTHOR Aura 55 2016 - triple butted alloy frame

Author road bike 55 Aura is built on an alloy frame with triple butted tubes and carbon fork. One of the highest roads in offers apart from highly developed structural frame´s elements a very rich components set as the twenty two-speed component set Shimano 105, compact chain wheel, wheel set MAVIC Aksium Elite, kevlar tires or carbon seatpost. Road machine for demanding riders.

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Technical specification

Size	480, 500, 520, 540, 560, 580 mm
Frame	triple butted alloy 6061
Front fork	AUTHOR C carbon 1.5" tapered
Head parts	PRESTINE Integrated 1.5" tapered
Chain Wheel	FSA Gossamer Compact MegaExo 50-34 teeth 170 / 172.5 / 175 mm cranks
BBParts	FSA MegaExo
Front derailleur	SHIMANO 105 (31.8)
Rear derailleur	SHIMANO 105
Shifters	SHIMANO 105 (22)
Free wheel	SHIMANO CS-5800 11-28 (11)
Chain	SHIMANO HG600
Hubs	MAVIC Aksium Elite wheel set 20 / 20 holes
Brakes	TEKTRO R540

Brakes levers	SHIMANO 105
Wheel set	MAVIC Aksium Elite 20 / 20 holes
Spokes	MAVIC
Tires	VITTORIA Zaffiro Pro kevlar 700 x 25c
Handlebar	RITCHEY Streem II Comp Road 420 / 440 mm
Tapes	AUTHOR microfiber / gel
Stem	RITCHEY Comp 4-Axis
Seat post	RITCHEY Comp Carbon (27.2)
Seat clamp	AUTHOR (31.8)
Saddle	AUTHOR Aura CR
Speed	22
Weight	8.4 kg / 54cm

Geometry and sizes

Size	480	500	520	540	560	580
Min. figure ~~[cm]~~	154	160	168	176	186	193
Max. figure ~~[cm]~~	162	170	178	188	195	202
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]~~	525	532	542	556	570	583
T/T a ~~[mm]~~	512	519	529	543	556	570
H/T ~~[mm]~~	125	140	155	170	185	200
C/S ~~[mm]~~	420	420	420	420	420	420
W/B ~~[mm]~~	993	995	1000	1008	1016	1024
S/T ang. ~~[°]~~	74.5	74.2	74	73.7	73.3	73
H/T ang. ~~[°]~~	71.5	71.8	72.2	72.5	72.8	73
F/L ~~[mm]~~	370	370	370	370	370	370
B/B drop ~~[mm]~~	72	71	70	70	69	68
B/B width ~~[mm]~~	68	68	68	68	68	68
Reach ~~[mm]~~	0	0	0	0	0	0
Stack ~~[mm]~~	0	0	0	0	0	0
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

max min

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