Shimano Ultegra Di2 ua haujlwm zoo heev thiab tsim tau zoo heev, tab sis zoo nkauj pricey
Shimano's Ultegra pawg tau zaum hauv nruab nrab ntawm nws txoj kev ua tau zoo ntawm txoj kev tsheb kauj vab hierarchy. Hauv qab qhov kawg-kawg Dura-Ace, tab sis siab dua qhov nkag-theem 105, nws Di2 version tam sim no yog qhov pheej yig tshaj plaws hluav taws xob txoj kev pab pawg Shimano muab.
Gravel cov kiv cua yuav xav tshawb xyuas peb qhov kev tshuaj xyuas ntawm kev tawm ntawm txoj kev tshwj xeeb GRX Di2 pawg
Tam sim no nyob rau hauv kev ua lag luam rau ob peb xyoos, qhov Ultegra R8050 series nta ib tug slew ntawm nta pom nyob rau hauv Shimano cov ntau-topping pawg, nrog rau ob peb tus cwj pwm ntse tshwj xeeb rau Ultegra.
Txawm tias tseem tshuav qhov nqi pheej yig tshaj plaws nkag mus rau hauv hluav taws xob hloov pauv, Shimano Ultegra Di2 tsis yog pheej yig heev: tag nrho disc nres pawg yuav teeb koj rov qab nyob ib ncig ntawm £ 2, 150 ntawm tus nqi muag khoom tag nrho (£ 1, 800 rau ntug brakes).
Txawm hais tias koj tuaj yeem pom nws luv nqi me ntsis, ntawm tus nqi tag nrho, nws tseem yog £ 900 ntau dua li cov neeg kho tshuab Ultegra, qhov tseeb uas tau pom hauv tus nqi tseem ceeb dhia ntawm cov tsheb kauj vab specced nrog ob txoj kev xaiv.
Tus nqi sib txawv ntawd siv rau ntawm tus kheej ib yam nkaus. Wreck koj rear mech thiab ib tug hloov yog £ 245 tag nrho tus nqi thaum ib tug tshiab Di2 shifter rau hydraulic brakes yuav raug nqi koj tshaj £ 300.
Yog li Ultegra Di2 yog qhov kev xav zoo, tab sis rov qab los, koj tau txais cov khoom zoo thiab kev hloov pauv zoo heev. Nws kuj yog configurable heev, cia koj teem tej yam txawv ntawm ib tug txheej txheem mechanical groupet.
Qhov kev hloov pauv no yog siv los ntawm Di2 roj teeb, uas zaum zais hauv lub raj. Nws yog qhov zoo rau ntau txhiab mais kev caij tsheb. Yog tias koj tsis nco qab them nws, nws txo qis koj qhov kev hloov pauv mus zuj zus, ua kom lub nraub qaum mech khiav ntev dua li pem hauv ntej mech los pab koj mus txog tsev.
Kuv tau nyob rau hauv qhov xwm txheej ntawd thiab txawm tias nws tsis yooj yim me ntsis kom daig hauv lub nplhaib loj, nws txaus kom tau txais kuv ncig ntawm kuv txoj kev npaj thiab zoo rau tus ncej puab kom tau txais kev ua haujlwm qis qis rau ntawm toj.
Cov npoj yaig tau muaj kev paub sib txawv uas yog lub hauv ntej mech hloov koj mus rau lub nplhaib me me ua ntej kaw, tsom rau lub zog me me uas tshuav ntawm lub nraub qaum mech kom muab qee qhov kev hloov pauv rau koj ua ntej khiav tawm tag nrho.
Shimano tau ua tiav nrog tus tswj hwm sab nraud (uas nws hu ua Junction A) ntawm qhov kev rov ua dua tshiab ntawm Di2, yog li koj tsis muaj qhov tsis zoo ntawm cov zip khi hauv qab koj lub qia. Hloov chaw, txhua yam yog feem ntau zoo huv si ua ke rau hauv qhov kawg bar. Qhov ntawd ua haujlwm zoo nrog cov tsheb kauj vab niaj hnub no, qhov twg muaj kev sib koom ua ke ntawm pem hauv ntej kawg thiab cov cables feem ntau tau hla ntawm cov tuav thiab qia.
Lub Junction A maub los kuj tseem tso cai rau koj them lub roj teeb ntawm lub qhov (socket) uas muaj tswv thiab Shimano roj teeb charger uas txuas rau tus qauv USB cable. Nws yooj yim heev kom them nqi.
Muaj ib lub pob thiab ob peb LEDs ntawm lub tsev ib yam nkaus. Ib txheej txheej cryptic ntawm cov xovxwm thiab flashes qhia koj tias muaj dab tsi tshwm sim thiab cia koj hloov cov pab pawg ua li cas. Nws tsim nyog kawm cov cai txawm li cas los xij, vim qhov ntawd qhib tag nrho ntau ntawm lwm cov haujlwm.
Thiab qhov ntawd yog ib qho txiaj ntsig ntawm Di2 dhau ntawm kev teeb tsa cable, vim nws tau teeb tsa tau zoo siv Shimano's e-Tube Project app. Txuas lub roj teeb charger rau hauv lub khoos phis tawj Windows (tab sis tsis yog Mac vim tias software tsis muaj rau lub platform) thiab koj tuaj yeem pib hloov qhov system ua li cas.
Koj tseem tuaj yeem khaws lub kaw lus firmware mus txog hnub, uas muaj txiaj ntsig zoo li kev hloov tshiab suav nrog tej yam xws li kev hloov pauv kom ntev roj teeb lub neej.
Parameterisation pib nrog tej yam yooj yim xws li hloov sai npaum li cas cov mechs hloov. Tab sis koj tuaj yeem hloov pauv txhua yam zoo nkauj txog yuav ua li cas Di2 ua haujlwm, suav nrog kev hloov pauv ntawm kev hloov pauv ntawm tus qauv (mimicking a cable-operated groupset) mus rau semi-synchronised lossis synchronized hloov.
Kev hloov pauv ntawm phau ntawv, ib nrab synchro thiab synchro tuaj yeem ua tiav siv lub pob ntawm Junction A.
Hauv synchronized hloov hom, koj tuaj yeem xaiv siv ib qho kev hloov pauv kom hloov mus thiab ib qho hloov mus. Tau mus rau qhov chaw teeb tsa ntawm lub cassette thiab lub kaw lus yuav cia li hloov cov chainrings nrog rau cov sprockets nram qab kom muab koj lub iav tom ntej nce lossis nqis. Qhov twg qhov kev hloov pauv tuaj yeem hloov pauv hauv app ib yam nkaus.
Kuv nyiam txoj kev ywj pheej los ntawm kev cuam tshuam ntawm kev hloov pauv ntawm synchronized - nrog cov neeg kho tshuab pawg nws yooj yim heev kom pom Kuv tau hloov mus rau qhov loj tshaj plaws sprocket / loj nplhaib sib xyaw ua ke, tab sis kev hloov pauv hloov tsis tau qhov ntawd.
Plus, thaum lub kaw lus ua haujlwm ua ntej, koj tsis tau tso rov qab qis dhau lub iav lossis sib tsoo qhov siab dhau. Ntxiv dua thiab, qhov ntawd yog ib yam uas yooj yim heev kom xaus nrog kev hloov ntawm phau ntawv.
Lwm qhov zoo dua yog tias koj tsis tshua muaj kev hloov pauv. Cov khawm nce thiab nqis ntawm Di2 levers yog nyob ze ua ke thiab nws yooj yim heev los ntaus qhov tsis ncaj ncees lawm, tshwj xeeb tshaj yog tias koj hnav hnab looj tes lub caij ntuj no tuab.
Nyob rau hauv ib nrab synchronised hom, ib zaug koj hloov ntawm chainrings lub kaw lus yuav hloov lub rear mech ib yam nkaus thiab kom tsis txhob muaj teeb meem spinning / sib tsoo. Ntxiv dua thiab, nws yog ib qho zoo ntxiv uas koj tsis tau txais thaum hloov chainrings manually.
Thiab nrog Di2, koj tsis nyam xaiv ib qho kev hloov pauv nkaus xwb, raws li koj tuaj yeem ncig ntawm lawv ntawm Junction A maub los.
Lub e-Tube ua haujlwm muaj nyob hauv wirelessly ntawm Bluetooth rau lub xov tooj app (Android thiab iOS) ib yam nkaus. Tab sis koj xav tau ib chav wireless cais - lwm £ 70-ntxiv cov khoom uas tsis yog ib feem ntawm kev teeb tsa thaum koj yuav lub tsheb kauj vab Di2.
Wireless configuration ntawm koj qhov kev hloov pauv tsis tshua zoo dua Sram Force eTap AXS, qhov twg wireless txuas tau tsim rau hauv lub kaw lus. Tab sis chav tsev wireless tseem tso cai rau koj txuas Di2 mus rau lub khoos phis tawj tsheb kauj vab siv ANT+ lossis Bluetooth thiab siv koj cov neeg hloov pauv kom txav mus los ntawm cov ntxaij vab tshaus ntawm koj lub GPS lossis tso saib cov ntaub ntawv ntawm koj cov khoom siv tam sim no.
Tsis yog kev hloov pauv
Ultegra feem ntau suav tias yog qhov chaw qab zib hauv Shimano pawg pawg, thiab muaj laj thawj zoo. Nws yog qhov polished me ntsis thiab ob peb puas grams sib zog dua cov kauj ruam tom ntej nqes 105 thiab ze li qhov sib tw ntawm sab saum toj-ntawm-tus-kab Dura-Ace yam tsis muaj tus nqi ntxiv.
Qhov ntawd tsis yog siv rau cov derailleurs xwb; qhov zoo ntawm kev ua tiav ntawm lwm cov Ultegra pawg pawg yog qhov zoo heev.
Muaj cov kev xaiv uas yuav tsum haum yuav luag txhua tus neeg siv. Uas pib nrog plaub chainring ua ke thiab plaub crank lengths. Koj kuj tau txais kev xaiv ntawm disc brakes, ncaj qha mount rim brakes los yog ib qho mounting point rim brakes, bar-kawg shifters, satellite shifters, ntev los yog luv tawb rear mechs thiab ntau yam kev xaiv cassette, mus txog 11-34t.
Disc brakes tuaj nrog Shimano's Icetech txias fins ntawm lub rotors, txawm hais tias tsis muaj txheej txheej dub pom ntawm Dura-Ace, thaum lub nres nres muaj lub chunky tsim uas nruj heev rau kev ua haujlwm zoo braking.
Yog li txhawm rau suav, Shimano Ultegra Di2 muab rau koj ntau yam khoom zoo thiab lub teeb yuag. Nws yog qhov ruaj khov dua li Dura-Ace thiab tsis tshua kim heev. Tab sis kom tau txais txiaj ntsig zoo tshaj plaws ntawm kev hloov hluav taws xob, npaj sijhawm los kawm seb nws tuaj yeem ua li cas thiab teeb tsa nws li cas.
Tshaj xav siv nyiaj ntxiv los ntxiv cov yam ntxwv thiab ua kom nws khiav zoo ib yam.
Txhua qhov kev tshuaj xyuas yog ywj siab thiab tsis muaj kev them nyiaj los ntawm cov tuam txhab tshwj xeeb hauv kev tshuaj xyuas
