Road bike Author AURA 44 with triple butted alloy frame and AUTHOR carbon 1.5" tapered fork. Alloy frame, carbon fork SHIMANO SORA, 18 speed Compact chainwheel SHIMANO HG50-9 cassette, 11-30 teeth JALCO DRX27 rims VITTORIA ZAFFIRO PRO 700 x 25c kevlar tires RITCHEY STREEM II COMP Road compact handlebars AUTHOR suede handlebar tapes with alloy plugs More details about cranks, handlebars and stemS sizes are available in TECHNOLOGIES. ↓↓↓Add to comparewhere to buyother modelsCharisma 77 2020-21Charisma 66 2020-21Charisma 55 2020-21Aura 55 2020-21Interested in other model`s year?2014201520182019technical specificationgeometry and sizesphotogalleryproduct options Technical specificationSize480, 500, 520, 540, 560, 580 mmFrametriple butted alloy 6061Front forkAUTHOR C carbon 1.5" taperedHead partsPRESTINE Integrated 1.5" taperedChain WheelFSA Omega Compact MegaExo 50-34 teeth 170 / 172.5 / 175 mm cranksBBPartsFSA MegaExoFront derailleurSHIMANO Sora (31.8)Rear derailleurSHIMANO SoraShiftersSHIMANO Sora (18)Free wheelSHIMANO HG50-9 11-30 (9)ChainSHIMANO HG53HubsQUANDO Road 32 holesBrakesTEKTRO R325Brakes leversSHIMANO SoraRimsJALCO DRX 27 32 holesSpokesblack stainless steel 2.0 mmTiresVITTORIA Zaffiro Pro kevlar 700 x 25cHandlebarRITCHEY Streem II Comp Road 420 / 440 mmTapesAUTHOR suede / gelStemRITCHEY Comp 4 AxisSeat postRITCHEY Road (27.2)Seat clampAUTHOR (31.8)SaddleAUTHOR AuraSpeed18Weight9.1 kg / 54cm Geometry and sizes Size 48 50 52 54 56 58Min. figure [cm] 154 160 168 176 186 193Max. figure [cm] 162 170 178 188 195 202S/T c-t [mm] 480 500 520 540 560 580S/T c-c [mm] 440 460 480 500 520 540T/T h [mm] 525 532 542 556 570 583T/T a [mm] 512 519 529 543 556 570H/T [mm] 125 140 155 170 185 200C/S [mm] 410 410 410 410 410 410W/B [mm] 982 985 990 998 1006 1014S/T ang. [°] 74.5 74.2 74 73.7 73.3 73H/T ang. [°] 71.5 71.8 72.2 72.5 72.8 73F/L [mm] 370 370 370 370 370 370B/B drop [mm] 72 71 70 70 69 68B/B width [mm] 68 68 68 68 68 68Reach [mm] 0 0 0 0 0 0Stack [mm] 0 0 0 0 0 0F/R [mm] 45 45 45 45 45 45Handlebars [mm] 0 0 0 0 0 0Stem [mm] 0 0 0 0 0 0Cranks [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 Photogallery Product options