model in recent yearsAdd to compareorder at Author Directadditional accessoriesother modelsElevation 2019Engine 2019 technical specificationgeometry and sizesphotogalleryproduct optionsadditional accessories Technical specificationSize17', 19', 21'Framedouble butted hydroformed alloy 6061 27.5'Front forkFOX 34 Float 27.5 Remote air, remote lock out 15 mm thru axle 1.5' tapered steerer (120 mm)EngineSHIMANO Steps DU-E8000 250WBatterySHIMANO BT-E8010 Li-lon, 36V, 14 Ah, 500 WhDisplayLCD SC-E8000Head partsFSA Integrated 1-1/8'Chain WheelSHIMANO Steps E8000 38 teeth 170 / 175 mm cranksBBPartsSHIMANO StepsRear derailleurSHIMANO SLXShiftersSHIMANO SLX (11)Free wheelSHIMANO M7000-11 11-42 (11)ChainKMC X11eHubsAUTHOR Xenon 15+ / Krypton 12+ boost 15 x 110 mm thru front axle boost 12 x 148 mm thru rear axle 32 holesBrakesTRP Slate 4 disc hydraulic (7' rotors)Brakes leversTRP Slate 4RimsAUTHOR Krypton Plus 27.5 32 holesSpokesblack stainless steel 2.0 mmTiresVITTORIA e-Goma kevlar 27.5' x 2.40'PedalsHT platmormHandlebarAUTHOR 15 mm 760 mmGripsAUTHOR Pro LockStemAUTHOR alloySeat postKIND SHOCK E30i alloy adjustable (30.9)Seat clampAUTHOR (31.8)SaddleAUTHOR NavigatorSpeed11Weight21,6 kg / 19' Geometry and sizes Size ["] 17" 19" 21"Min. figure [cm] 158 169 182Max. figure [cm] 172 184 200S/T c-t [mm] 432 483 533S/T c-c [mm] 0 0 0T/T h [mm] 615 630 645T/T a [mm] 590 601 613H/T [mm] 115 125 130C/S [mm] 460 460 460W/B [mm] 1159 1187 1203S/T ang. [°] 71.5 71.5 71.5H/T ang. [°] 66 66 66F/L [mm] 560 560 560B/B drop [mm] 45 45 45B/B width [mm] 0 0 0Reach [mm] 0 0 0Stack [mm] 0 0 0F/R [mm] 43 43 43Handlebars [mm] 620 620 620Stem [mm] 90 90 90Cranks [mm] 170 170 170 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 black-matt / yellow-neon17" = UA#42898802 19" = UA#42898803 21" = UA#42898804 additional accessoriesAUTHOR Hand pump AAP BoosterMini Pump Author Booster. Changeable head allows usage with all type of valves (AV, FV, DV). Fixation lever assures strong fixation of the head ...AUTHOR Mini pump AAP AirStream ALThe Author Airstream minipump easily fits in your jersey pocket. This elegant mini pump features an all composite body, head and pump handle and ...AUTHOR Shock pump AAP-S05-AluRed button for pressure adjustment, composite / Cr-Mo, max. pressure 300PSI (2MPa), rozměr 60 x 250mm, hmotnost: 146g.