Txhim kho koj txoj kev tsheb kauj vab uas twb muaj lawm tuaj yeem yog txheej txheem tsis txaus ntseeg, tab sis peb tau muab qee qhov kev xaiv los ua kom pom tseeb me ntsis
Thaum nws los ntxiv kev ceev, kev ruaj ntseg thiab kev sib deev rau koj lub tsheb kauj vab, qhov chaw zoo tshaj plaws los siv koj cov nyiaj yog ntawm ob lub log tshiab.
Tab sis kev yuav lub log tau dhau los ua kev lag luam nyuaj tsis ntev los no. Yog tias koj taug kev mus rau hauv lub khw muag tsheb kauj vab thiab nug tom qab cov txheej txheem ntawm txoj kev siab kawg, koj yuav tau ntsib nrog qee yam zoo li kev nug.
Xav los yog madam nyiam disc lossis rim nres? Carbon los yog alloy? Thru-axle lossis ceev tso tawm? Dab tsi rim qhov tob? 30mm, 50mm, 80mm? Koj feem ntau yog caij caij dab tsi? Kev sib tw, ntaus pob ncaws pob, pob zeb, sijhawm sim?
Dab tsi txog qhov dav sab hauv? Kev nyiam log tsheb? Thiab, ntawm chav kawm, koj xav siv nyiaj ntau npaum li cas? Qhov zoo tshaj plaws ntawm qhov zoo tshaj plaws tuaj yeem tsim koj rov qab txog £ 4,000. Qhov tseeb: £ 4k.
Thaum Cyclist nug ob peb lub khw muag khoom hauv UK loj (ob qho tib si hauv online thiab txoj kev siab) qhov kev hloov kho lub log nrov tshaj plaws yog dab tsi, nws zoo li tias lawv cov neeg siv khoom zoo siab siv plaub tus lej (thiab tsis tas yuav pib nrog 1), nrog rau qhov nyiam style yog carbon rims nrog qhov tob
ntawm txog 40mm.
Yog li ntawd yog hom log zoo tshaj plaws mus rau? Peb muab cov lus nug rau qee lub ntiaj teb cov tuam txhab ua lag luam.
Lub ntiaj teb tshiab siab tawv
'Peb nyob ntawm qhov tseem ceeb tshaj plaws rau lub log, tshwj xeeb tshaj yog tias disc nres tau nrov thoob ntiaj teb, 'hais tias Jason Fowler, tus thawj coj ntawm lub log khoom ntawm Zipp.
'Disc brakes hais lus rau ntau tus neeg thiab thaum nthwv dej tuaj txog peb yuav saib cov cuab yeej siv lub log ua ntej raws li qhov ntawd. Nws txhais tau tias peb tuaj yeem tshawb nrhiav cov qauv tshiab, tab sis tseem muaj ntau lub tsheb kauj vab nres tawm ntawm qhov ntawd thiab peb tsis tuaj yeem tso tseg tsis xav txog cov neeg siv khoom, yog li peb tseem yuav thawb hauv qhov haujlwm ntawd thiab.
'Nyob ntawm ntug nres sab ntawm qhov kev ua tau zoo, rau Zipp tam sim no hais txog kev tsom mus rau kev txo qis ntawm sab quab yuam nrog rau cov txiaj ntsig aero, raws li peb tau ua nrog [tsis ntev los no tau tshaj tawm] 454 NSW, 'nws hais ntxiv..
'Yog li qhov kev vam meej tuaj yeem pom yog tias peb tuaj yeem siv qhov no rau cov log tob dua.'
Fowler qhov cuam tshuam yog tias tsis ntev peb txhua tus tuaj yeem nrhiav caij lub log sib sib zog nqus ntau lub sijhawm, vim tias kev siv thev naus laus zis yuav txhais tau tias lawv tsis tshua muaj kev cuam tshuam rau kev hla dhau, thiab caij nrawm rau hnub blustery yuav tsis muaj xim dawb. -knuckle struggle.
Qhov no suab zoo li qhov kev xav txaus siab, thiab tej zaum peb txhua tus yuav sai sai no yuav tshwm sim nyob ib puag ncig ntawm 80mm rims hnub hauv thiab hnub tawm, tab sis qhov no tsuas yog ib qho kev xav ntawm qhov teeb meem perpetual uas sib sib zog nqus log log ntsib hauv crosswinds.
'kev daws teeb meem kev ruaj ntseg sib txawv,' hais tias Jordan Roessingh, tus thawj tswj khoom ntawm Bontrager Log. 'Rau qhov tseeb peb muaj nuj nqis rau kev ruaj ntseg yog qhov tseem ceeb, tab sis peb feem ntau ua kom zoo dua peb cov duab ntawm ntug ib ncig ntawm lub luag haujlwm dawb huv.
'Qhov ntawd tso cai rau peb siv qhov qis qis rau qhov muab ceev thiab peb tuaj yeem ua tiav 50mm rim uas nrawm nrawm, lossis nrawm dua li peb cov neeg sib tw '58mm rims. Lub ntug dej ntiav yog sib dua thiab muaj zog sab qis, yog li koj tuaj yeem siv nws hauv ntau yam xwm txheej.'
Kev ruaj ntseg yog ib lub ntsiab lus kub, tab sis tseem tsis tau hais txog qhov zoo tshaj plaws ntug qhov tob rau koj cov khub zoo tshaj plaws ntawm kev txhim kho lub log. Nyob rau hauv cov ntaub ntawv twg, cia peb tig peb mloog rau ntug dav, uas zoo li yuav nce txhua lub sijhawm.
Cov teeb meem dav dua
Qhov twg ib zaug aerodynamic rims tau sib sib zog nqus thiab nyias, zoo li cov hniav, cov duab puab sab nraud tau dhau los ua dav thiab blunter. Txawm hais tias yuav tawm tsam qhov kev xav, cov rims sib npaug no tau ua pov thawj los ua kom muaj kev sib tw tsawg thiab tsawg sab quab yuam nyob rau hauv lub crosswind.
Hed thiab American Classic yog cov exponents thaum ntxov ntawm qhov dav ntawm qhov ntev, thiab tam sim no feem ntau ntawm high-end log rims tau dav dua, ob qho tib si sab nraud, nrog qee qhov ballooning tawm mus rau lub bulbous 27mm, thiab sab hauv, widening los ntawm ib zaug. txheem 13-15mm mus tshaj 20mm
qee kis.
Qhov cuam tshuam ntawm qhov dav dav sab hauv no yog tias nws txhawb kev siv cov log tsheb dav dua, uas nws tus kheej muaj kev cuam tshuam loj rau kev ua haujlwm ntawm lub log.
Lub log tsheb dav dua nyob rau hauv qhov dav dav muaj ntau dua ntawm 'U' zoo thiab tsawg dua ntawm lub teeb pom kev zoo, uas tsis cuam tshuam rau cov huab cua thoob plaws lub log tsheb / ntug. Qhov ntawd txhais tau hais tias dav dua 25mm lossis 28mm log tsheb tuaj yeem ua tau ntau dua aerodynamic dua li cov log tsheb 23mm, nrog rau cov txiaj ntsig ntawm kev txhim kho tuav thiab kev nplij siab ntau dua.
Yog li nws tsuas yog qhov kev xaiv rau qhov dav tshaj plaws nrog lub log dav tshaj plaws uas yuav haum rau koj lub tsheb kauj vab?
'Peb tau sim ntau yam sab hauv ntug dav rau cov txiaj ntsig ntawm lub log tsheb thiab hais ncaj qha 17 hli thiab txawm tias 19 hli tsis tau tsim cov txiaj ntsig zoo ib yam li 21 hli tuaj yeem, 'Zip's Fowler hais.
'Tab sis qhov ntawd tsis yog hais tias 21mm yuav ua haujlwm zoo tshaj plaws rau txhua qhov tob tob. Los ntawm qhov peb tau pom koj yuav tsum ntsuas qhov dav sab hauv ntawm qhov xwm txheej ntawm qhov xwm txheej.
'Tus neeg caij tsheb uas siv 80 hli sib sib zog nqus npoo yuav zaum siv lub log dav sib txawv dua li ib tus neeg caij 40 hli sib sib zog nqus, yog li koj yuav tsum nug seb lub log dav dav hais lus rau tus neeg caij tsheb thiab saib seb lub ntug sab hauv yog dab tsi dav ua haujlwm zoo tshaj plaws rau qhov xwm txheej ntawd. Koj tsis tuaj yeem rov ua qhov kev xav tib yam thoob plaws qhov ntau. Nws tsis ntsuas ib yam nkaus.'
No guarantees
Maxime Brunand, tus thawj coj ntawm txoj kev xav ntawm Mavic, tseem ceeb taw qhia tias kev mus dav dua tsis tas yuav yog daim pib kub rau kev txhim kho kev ua tau zoo tag nrho: 'Ntau tshaj 80% ntawm peb 2017 ntau yam sib koom ua ke dav dua, tab sis qhov no Kev tsim evolution yuav tsum tau xav txog txhua yam.
'Lub ntsiab lus: dav dua rau qhov twg? Cov rims dav tuaj yeem ua rau cov rims hnyav dua, ua rau muaj zog ntau dua. Yeej tsuas yog nyob rau sab aero tsis tuaj yeem them rov qab rau kev siv hluav taws xob ntxiv yog tias lub npoo dav thiab hnyav.
'Muaj qhov sib npaug los nrhiav qhov chaw qab zib. Lwm qhov tseem ceeb uas yuav tsum tau coj mus rau hauv tus account yog kev nyab xeeb: qee qhov kev sib txuas ntawm cov rims dav dhau nrog "nqaim" log tsheb tau ua pov thawj tias tsis muaj kev nyab xeeb [nrog cov log tsheb tshuab tawm ntawm rims]. Txhim kho lub log / log tsheb yog qhov lav rau peb cov neeg siv khoom ib txwm
muas kev sib xyaw zoo tshaj plaws.'
Mavic yog ib tug ntseeg hais tias txoj kev mus rau pem hauv ntej yuav tsim lub log thiab log tsheb ua ke, thiab qhov tseeb nws tau ua li ntawd txij li xyoo 2010.
Nws CX01 lub tswv yim ncaj qha hais txog huab cua thoob plaws lub npoo thiab lub log tsheb los tsim qhov nws thov yog lub log qis tshaj plaws / log tsheb uas tau ntsuas (txawm tias lub kaw lus tsis ua tiav UCI kev pom zoo).
Nws zoo li kev txav mus los, yog li vim li cas peb tsis pom ntau lub npe loj tsim cov log tsheb tshwj xeeb thiab cov log tsheb sib txuas? Zipp's Fowler muaj cov lus teb.
'Peb ua ntau yam ntawm peb qhov kev sim nrog peb tus kheej lub log tsheb thiab yog, peb tuaj yeem txhim kho peb cov qauv tsim kom ua haujlwm zoo tshaj plaws nrog qee qhov dav dav, tab sis peb kuj paub tias cov neeg siv khoom tsis tuaj yeem xav tau thiab xav tau kev xaiv, 'nws hais..
'Lub sijhawm ntev Kuv tuaj yeem pom ntau qhov kev sib koom ua ke ntawm cov log tsheb thiab lub log ua ib pob, tab sis lub suab ntawm cov neeg siv khoom ib txwm muaj kev sib koom siab - lawv xav tau kev xaiv, thiab peb tsis tuaj yeem tsis quav ntsej qhov ntawd.'
Nyob zoo ib tsoom phooj ywg sawv daws
Amid txhua qhov kev sib tham ntawm ntug qhov tob, qhov dav thiab lub log sib haum, muaj ib qho kev kawm uas tseem tsis tau tsa nws lub taub hau: qhov hnyav. Nws feem ntau yog thaj chaw uas cov neeg caij tsheb kauj vab obsess tshaj plaws, yog li nws tseem ceeb sib npaug ntawm kev xaiv cov log tsheb?
'Muaj kev hloov pauv hauv kev xav txog kev ua lag luam,' hais tias Fowler. 'Raws li cov tsheb kauj vab tau sib dua, muaj tsawg dua ntawm kev tsom mus rau lub log hnyav. Braking kev ua tau zoo thiab mus nrawm dua yog qhov tseem ceeb dua rau cov neeg siv khoom tam sim no.
'Koj ib txwm muaj qhov hnyav weenies tab sis nws tau raug pov thawj tias aerodynamics tseem ceeb dua, txawm tias thaum nce toj. Txog 10-12 xyoo dhau los thaum peb tab tom sim muag aerodynamic kev ua tau zoo, kev thawb rov qab peb ib txwm tau txais los ntawm cov neeg siv khoom yog, "Zoo, nws hnyav li cas?" Tab sis qhov ntawd feem ntau yog ib qho ntawm cov lus nug kawg uas tuaj txog tam sim no.'
Roessingh ntawm Bontrager pom zoo, hais tias, 'Qhov hnyav ntawm kev caij tsheb tag nrho yog qhov tseem ceeb tsawg dua li nws ib zaug. Aero thiab kev nplij siab yog qhov tseem ceeb tshaj qhov tsis muaj qhov xav tias koj tab tom sib piv hauv lub qhov rais nqaim ntawm qhov hnyav.
'Zoo yog tias peb tham phaus uas yog zaj dab neeg sib txawv, tab sis qhov hnyav me me yog qhov teeb meem tsawg.'
'Nws yog hom "yooj yim" los tsim lub teeb lub log, ' ntxiv Brunand ntawm Mavic. 'Tab sis tam sim no nws yog hais txog tus nqi, tus nqi tsim khoom, kev ntseeg siab, kev nruj … qhov hnyav tsis yog qhov kev xav xwb.'
Qhov no tso rau peb nyob qhov twg hauv peb txoj kev tshawb nrhiav kev hloov kho lub log zoo meej?
'Kuv xav hais tias tsis muaj ib lub log ua txhua yam,' Roessingh hais. 'Cov neeg tiag tiag yuav tsum nug seb lawv siv cov khoom siv tiag tiag li cas. Peb feem ntau pom tias cov neeg siv khoom yuav raws li kev xav tau.
'Los ntawm qhov kuv txhais tau tias lawv xav tias lawv yuav caij ncig txhua qhov ntawm 40 kmh. Tab sis qhov tseeb yog lawv tsis yog. Ib yam li lawv xav caij pob zeb lossis av ntawm lawv txoj kev tsheb kauj vab vim tias nws yog qhov kev hloov tshiab, thaum qhov tseeb lawv siv sijhawm feem ntau ntawm lawv lub sijhawm ntawm txoj kev pav.
'Cov no yog ob qhov xwm txheej sib txawv tab sis ob qho tib si koj pom muaj kev cuam tshuam loj hauv kev sim nrhiav ib qho kev daws teeb meem.'
Fowler tseem qhib siab me ntsis ntxiv. 'Qhov xwm txheej zoo tshaj plaws hauv ntiaj teb yuav yog kom muaj qhov [qis] aerodynamic rub ntawm Zipp 808 nrog [qis] sab quab yuam ntawm 202. Tab sis hmoov tsis uas tsis muaj nyob rau niaj hnub no, 'nws hais.
'Qhov hais tias, nws tseem tau sau rau ntawm lub rooj tsavxwm ntawm Zipp vim tias qhov kev xav ntawd yog qhov tiag tiag coj peb mus rau 454 thiab peb yuav txuas ntxiv mus rau qhov ntawd. Niaj hnub no, txawm li cas los xij, lub log tsis muaj.'
'Tsis muaj ib lo lus teb,' ntxiv Brunand. 'Muaj ntau qhov sib txawv. Haiv neeg lossis ncig saib? Heavy rider lossis light rider? Zoo tarmac los yog pavement tsis zoo? Xav tau kev ceev lossis nrhiav kev nplij siab?
'Ntxiv rau 25mm rim [qhov tob] yuav yooj yim rau kev tsav tsheb dua li qhov tob dua, txawm li cas los xij qee lub npe xav kom koj xav! Nws tsuas yog physics yooj yim xwb.'
Cov lus zoo li yuav phim koj cov khoom raws li koj cov kev xav tau, uas txhais tau tias koj yuav tau ua siab ntev rau kev nug los ntawm tus neeg muag khoom ntawm lub khw muag khoom tom qab tag nrho.
cov lus nug tseem ceeb
Tsis txhob koom nrog koj cov nyiaj ntsuab ua ntej koj tau ntsuas koj cov kev xav tau. "Qhov teeb meem loj tshaj plaws nrog cov qoob loo tam sim no yog qhov tsis muaj kev kawm," Jonathan Day, tus thawj coj ntawm Strada handbuilt log.
‘Tib neeg tsis nkag siab qhov lawv xav tau. Peb tau txais ntau tus neeg muas zaub uas tsis paub dab tsi yog thru-axle.'
Yog li, ntawm no yog cov ntsiab lus xav txog:
Rim qhov tob - qhov tseem ceeb npaum li cas koj tso rau ntawm aerodynamic ceev piv rau kev ruaj ntseg hauv crosswinds? 40mm yog tej zaum qhov txwv rau tag nrho kev ntseeg siab nyob rau hauv tag nrho cov mob.
Rim dav (sab nraud) - dav tuaj yeem nrawm dua aerodynamically tab sis nws nyob ntawm qhov dav ntawm lub log tsheb. Ua tiag tiag txog koj lub cev hnyav thiab caij kev cia siab (piv txwv li, koj puas xav tawm ntawm txoj kev?), raws li qhov dav tuaj yeem muab ntxiv nruj / lub zog.
Rim dav (sab hauv) - tseem ceeb raws li nws txiav txim siab tag nrho cov duab ntawm koj lub log tsheb. Ib qho inverted 'U' profile tau ua pov thawj aerodynamic thiab kev sib cuag cov txiaj ntsig dhau ntawm 'lub teeb' duab, thiab qhov dav sab hauv ntug qhov ntev pab ua tiav qhov no. Tab sis nws nyob ntawm qhov dav ntawm lub log tsheb koj siv.
Tyre dav - dav dua log xa ntau tuav thiab kev nplij siab (thiab kev muaj peev xwm tawm ntawm txoj kev), tab sis hnyav dua thiab ua rau thaj tsam pem hauv ntej, yog li nws yog hais txog kev sib piv koj cov kev xav tau thiab kev cia siab rau qhov txiaj ntsig zoo tshaj plaws, txheeb ze rau qhov ntev ntawm ntug.
Tyre compatibility - tubeless, clincher los yog tubular yog cov kev xaiv, tab sis tubular yog xyaum tu ncua tam sim no txuag rau devout racers thiab pros. Tubeless xav tau ntau dua faff pib tab sis muaj ntau yam pluses - qis dov tsis kam, kev nplij siab, kev tiv thaiv kev sib tsoo - ib zaug koj tau teeb tsa.
Hub hom - yog tias koj siv disc nres, xyuas kom koj lub hubs tau sib xws nrog koj lub tsheb kauj vab spec. Puas yog nws tso tawm sai lossis
thru-axle, thiab qhov twg ntawm cov qauv qag sib txawv koj siv? Ntau lub hubs tsuas yog siv cov kaus mom kawg sib txawv los hloov kho, tab sis kos.
