Ultralight junior racing special on 27.5 inch wheels. If you are looking for the best in given category for your rider, this is the right choice! Very light alloy frame made of triple butted tubes, shaped by hydroforming technology, which guarantees strong and very durable process with minimal weight. RST air fork, SHIMANO Deore components, 11 speeds, TEKTRO hydraulic disc brakes with excellent braking performance. A machine that will definitely not be bored on the race route, but will also be a perfect buddy on any trip!Add to comparewhere to buyadditional accessoriesother modelsUltrasonic 27,5Sonic 27,5 2021Interested in other model`s year?201920202021technical specificationgeometry and sizesphotogalleryproduct optionsadditional accessories Technical specificationSize14", 16"Frametriple butted hydroformed alloy 6061 27.5"Front forkRST F1RST 27.5 air, lock out (80 mm)Head partsAUTHOR Integrated 1.5" taperedChain WheelPROWHEEL 32 teeth 165 / 170 mm cranksBBPartsPROWHEL BB unitRear derailleurSHIMANO SLXShiftersSHIMANO SLX (11)Free wheelSHIMANO M5100-11 11-51 (11)ChainKMC X11HubsAUTHOR Xenon 32 holesBrakesTEKTRO Gemini disc hydraulic (6" rotors)Brakes leversTEKTRO Gemini WSRimsAUTHOR Xenon TRC 27.5 32 holesSpokesblack stainless steel 2.0 mmTiresCST B-Trail aramid 27.5" × 2.25"PedalsalloyHandlebarAUTHOR Flat Top bar 9° 620 / 640 mmGripsAUTHOR kratton rubberStemAUTHOR alloySeat postAUTHOR alloy (31.6)Seat clampAUTHOR (34.9)SaddleAUTHOR Champion Author NavigatorSpeed11Weight11,5 kg / 16" Geometry and sizes Size 14" 16"Min. figure [cm] 140 155Max. figure [cm] 158 170S/T c-t [mm] 356 406S/T c-c [mm] 0 0T/T h [mm] 550 575T/T a [mm] 544 557H/T [mm] 110 115C/S [mm] 420 420W/B [mm] 1052 1067S/T ang. [°] 74 73.5H/T ang. [°] 69 69.5F/L [mm] 475 475B/B drop [mm] 45 45B/B width [mm] 73 73Reach [mm] 0 0Stack [mm] 0 0F/R [mm] 43 43Handlebars [mm] 0 0Stem [mm] 0 0Cranks [mm] 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 lime / blue14" = UA#42933200 16" = UA#42933201 additional accessoriesAUTHOR Bottle cage ABC-60AUTHOR FLY 33 One-Piece Gloss Bottle Cage is made of durable glass fibre-reinforced polyamide and is stylish with a gloss finish. It is lightweight ...AUTHOR Bottle cage ABC-L&R05Bottle cage AUTHOR ABC-L&R05 designed for easy bottle removing from side direction. It is lightweight and has a contoured inner edge which makes ...AUTHOR Bottle cage ACP-X26 KarbonCreated using AUTHOR X26 Carbon - tech construction is superbly strong and incredibly light. Elegantly designed, it holds true to its function ...AUTHOR Stand AKS-530 RSAlloy kick stand designed for direct rear fork down tube fixation (tube profile 22 - 25mm), recomended for bicycles with rear disk brake. Adjustable ...AUTHOR Mudguard front X-Bow QRMudguard Author X-BOW QR with aerodynamic flow design is perfect for XC ride. Fits suspension or rigid forks with inner diameter of steering tube ...AUTHOR Mudguard front X-FlapAuthor X-Flap is a lightweight and effective front mudguard for MTB suspension bikes. Compatible with 26”, 27.5” and 29” wheels, disc brakes ...AUTHOR Mudguard rear X-BowRear mudguard AUTHOR, modern shorter mudguards with universal bracket, fabric plastic. Weight 163g.AUTHOR Sadle bag A-S381 QF9 X7The Author saddle bag A-S381 is the easy bag with the Quick Fix 9 bracket for easy click ON/OFF and one main compartment. Designed for long satisfied ...
AUTHOR Bottle cage ABC-60AUTHOR FLY 33 One-Piece Gloss Bottle Cage is made of durable glass fibre-reinforced polyamide and is stylish with a gloss finish. It is lightweight ...AUTHOR Bottle cage ABC-L&R05Bottle cage AUTHOR ABC-L&R05 designed for easy bottle removing from side direction. It is lightweight and has a contoured inner edge which makes ...AUTHOR Bottle cage ACP-X26 KarbonCreated using AUTHOR X26 Carbon - tech construction is superbly strong and incredibly light. Elegantly designed, it holds true to its function ...AUTHOR Stand AKS-530 RSAlloy kick stand designed for direct rear fork down tube fixation (tube profile 22 - 25mm), recomended for bicycles with rear disk brake. Adjustable ...AUTHOR Mudguard front X-Bow QRMudguard Author X-BOW QR with aerodynamic flow design is perfect for XC ride. Fits suspension or rigid forks with inner diameter of steering tube ...AUTHOR Mudguard front X-FlapAuthor X-Flap is a lightweight and effective front mudguard for MTB suspension bikes. Compatible with 26”, 27.5” and 29” wheels, disc brakes ...AUTHOR Mudguard rear X-BowRear mudguard AUTHOR, modern shorter mudguards with universal bracket, fabric plastic. Weight 163g.AUTHOR Sadle bag A-S381 QF9 X7The Author saddle bag A-S381 is the easy bag with the Quick Fix 9 bracket for easy click ON/OFF and one main compartment. Designed for long satisfied ...