Vittoria Qurano 46s yog thawj zaug graphene tau siv rau hauv txoj kev log. Tab sis nws puas ua tau dab tsi?
Vittoria tau trumped nws cov neeg sib tw los ntawm kev ua thawj zaug los qhia graphene rau hauv nws cov log tsheb. Nws yog ib yam khoom uas tuaj yeem yog qhov tseem ceeb tshaj plaws hauv kev tsim kho tsheb kauj vab txij li carbon fiber usurped aluminium ntau tshaj li kaum xyoo dhau los.
Peb tau tham txog graphene lub peev xwm ntawm no: Puas yog graphene cov pa roj carbon fiber ntau ntxiv?, tab sis yog tias koj tsis tau nyeem qhov ntawd, nws tau raug touted ua ib yam dab tsi ntawm cov khoom xav tsis thoob. Nws nrhiav tau los ntawm ob tus kws tshawb fawb, Andre Geim thiab Kostya Novoselov, ntawm Manchester University hauv 2003 tau suav tias yog ib qho tseem ceeb hauv kev tshawb fawb nws tau txais lawv ob qho khoom plig Nobel thiab knighthoods. Graphene yog ib txheej ntawm carbon atoms, 0.3 nanometers tuab - tsawg kawg yog ib lab lub sij hawm thinner dua daim ntawv - thiab yog 150 npaug zog dua hlau tsis tau 20% elastic dua. Nws ua hluav taws xob zoo dua tooj liab lossis kub, thiab ua kom sov sai, thaum ua pob tshab thiab tsis muaj dej tsis txaus. Cov khoom uas muaj graphene tseem yuav tsis tshua muaj, tab sis txhua yam ntawm cov xov tooj ntawm tes mus rau lub dav hlau thiab cov hnab looj tes (Bill thiab Melinda Gates Foundation tau pub nyiaj $ 100, 000 rau kev nqis peev rau graphene rau yav tom ntej) sawv ntsug kom tau txais txiaj ntsig raws li cov kws tshawb fawb txuas ntxiv mus tshawb fawb thiab siv nws cov cwj pwm.. Tab sis qhov peb xav paub yog: peb yuav ua li cas kom tau txais los ntawm kev ntxiv nws rau carbon composite matrix ntawm lub tsheb kauj vab log?
Vittoria ua rau qee qhov kev thov zoo nkauj hais txog kev txhim kho graphene ua rau cov khoom siv kho tshuab ntawm nws cov Qurano log: 10% zoo dua cov cua sov dissipation, 15% poob phaus, 18% ntau cuam tshuam, 20% nce hais lus lub zog, 24 % ntau ua raws thiab 50% ntau dua lateral tawv. Txawm li cas los xij, txawm tias Vittoria qhov kev lees paub tias nws qhov kev tshawb pom tau raug txheeb xyuas los ntawm lub chaw kuaj mob sab nraud, cov kev txheeb cais no yuav tsis yeej kuv, thiab peb yuav tsum rhuav tshem lub log kom sim lawv tag nrho. Yog li ntawd, peb tsuas yog tsom mus rau qhov tshwm sim ntawm kev ua qee txoj kev sib tw, tau ua ke lub log nrog cov txheej txheem ntawm Vittoria tus kheej 25 hli Corsa SC tubular log.
Qhov siab tshaj plaws ntawm Vittoria cov lus thov cuam tshuam nrog Qurano lub sab nraub qaum, lub hauv paus ntawm uas, nws hais tias, yog lub ntsej muag asymmetric uas sib npaug ntawm cov lus hais ntawm sab laug thiab sab xis kom tau txais ntau lub log nro. Dab tsi yog graphene lub luag haujlwm hauv qhov no? Nws tau ntxiv rau cov cob kom cov rims khov thiab ua kom muaj zog nyob ib ncig ntawm lub qhov hais lus. Thiab thaum lub sij hawm sim Quranos tau tiag tiag xav tias nruj heev thaum lub sij hawm tag nrho cov kev siv zog, tuav ruaj zoo li tej wheelset kuv twb puas tau caij. Kuv cuam tshuam kuv qhov kev xeem mais nrog kev caij tsheb ntawm Zipp's 202 Firecrest thiab Bontrager's Aeolus 5 Tubeless wheelsets - ob qho kuv nyiam - tab sis thaum kuv rov qab mus rau Vittorias kuv yeej tsis xav li yog tias lawv tuav kuv rov qab. Qib kev ua tau zoo sib npaug sib npaug.
Nrog lawv qhov hnyav ze li 1, 300g rau ob khub, Qurano kev sib xyaw ua ke ntawm cov khoom sib hloov qis thiab cov khoom tsim tau zoo ua rau muaj kev xav zoo heev thiab teb - qhov koj xav tau los ntawm kev sib tw log. Thaum kuv nce toj lawv xav tias mob siab rau thawb mus tom ntej, thiab txawm tias nyob rau qhov siab tshaj plaws gradients lub log tsis flinch. Tsis muaj cov lus qhia me ntsis ntawm tus nres rub ib qho, uas yog qhov zoo siab tias Vittoria's yog pheej yig dua li Zipps thiab Bontragers tau hais los saum toj no.
Lub npoo profile ntawm Qurano yog qhov dav dav, ntsuas 23mm sab nraud, tab sis tsis dav li cov tam sim no thawb cov ciam teb ntawm ntug kev loj hlob xws li Enve thiab Zipp (27mm thiab 27.8mm dav feem). Lub pem hauv ntej ntug qhov tob yog 42 hli, thaum lub rear yog 46 hli, thiab txawm hais tias aerodynamic kev ua tau zoo yog nruj kom muaj nuj nqis ntawm txoj kev ntsuam xyuas, lub Quranos zoo li nyob rau hauv ib tug par nrog lub ntxaum (thiab dav) Bontrager Aelous 5s. Tus cwj pwm zoo tshaj plaws yog tias Quranos tseem nyob ruaj khov nyob rau sab cua daj cua dub, xws li thaum hla qhov sib txawv hauv ib hedgerow.
Tab sis txaus mus nrawm. Ib qho ntawm qhov tsis zoo ntawm cov pa roj carbon rims yog braking efficiency, tab sis nyob rau hauv no hais txog Quranos tau zoo tshaj qhov nruab nrab. Thawj qhov tom ntawm lub brake pads (muab) xav tias tsis muaj zog, tab sis qhov ntawd tsis yog qhov tsis zoo vim tias lub brake nres tuaj yeem ua rau tsis xis nyob. Hloov chaw lub zog nres tau nce zuj zus thaum kuv nyem lub levers, thiab thaum kawg tau ua pov thawj tias ua tau zoo hauv ob qho tib si ntub thiab qhuav. Lub nres nres thaum pib zoo li tsim kom muaj ntau qhov seem ntawm lub npoo npoo, tab sis qhov no txo qis dua lub sijhawm thiab kev ua haujlwm braking tseem zoo ib yam thiab kwv yees.
Qhov tsuas yog qhov tsis txaus ntseeg uas kuv tau ntsib yog rattle los ntawm lub log pem hauv ntej uas kuv taug qab rov qab mus rau qhov me me ntawm kev ua si hauv pem hauv ntej hub bearings, uas tsis muaj txhais tau tias yuav kho cov khoom ua ntej thiab daws qhov teeb meem. Nws yog me me, thiab nws zoo li nitpicking, tab sis nws tsuas yog qhov tsis zoo nyob rau hauv ib qho zoo tshaj plaws khub ntawm lub log. Qhov cuam tshuam ntau npaum li cas ntawm graphene tiag tiag yog qhov nyuaj rau kev suav, tab sis kuv yuav zoo siab sib tw Qurano 46 tubulars txhua hnub.
| Vittoria Qurano 46 Tubular | |
|---|---|
| Nyhav | 1, 312g |
| Rim Depth | 42mm pem hauv ntej, 46mm rear |
| Rim dav | 23mm sab nraud |
| hais suav | 16 pem hauv ntej, 21 rear |
| Price | £1,200 |
| fisheroutdoor.co.uk |
