Nrog ib qho kev sib txuas ntawm nws qhov tshiab Force 1 pawg, SRAM lub hom phiaj los ua pov thawj tias kev yooj yim feem ntau yog qhov kev daws teeb meem zoo tshaj plaws
Kuv nco tau, thaum kuv tseem me me, tau txais kuv thawj 10-ceev 'sib tw'. Nws muaj tsib-ceev freewheel nrog ob lub chainset, uas yog ib qho tseem ceeb vim hais tias nyob rau hauv cov hnub koj lub tsheb kauj vab kudos raug txiav txim los ntawm pes tsawg lub zog nws muaj. Txij thaum ntawd los, maj mam ntau thiab ntau sprockets tau crammed nyob rau hauv, nrog rau tag nrho cov loj peb groupset hom tam sim no topping tawm ntawm 11-ceev cassettes, yooj yim (nrog ib tug triple chainset) lub peev xwm rau ib tug mindboggling 33 lub zog. Ntau, txawm li cas los xij, tsis yog ib txwm zoo dua. Tag nrho cov kev xaiv no tuaj yeem ua rau kev teeb tsa finicky, nrog cov kab tsis txaus ntseeg thiab cov teeb meem nrog cov saw rub rau pem hauv ntej mech. Tsis tas li ntawd, qee qhov ntawm cov iav yuav raug pov tseg vim muaj kev sib tw (piv txwv li, 50/25 yog tib yam li 34/17). Hloov chaw, xav txog qhov muaj peev xwm ntawm ditching ntau lub hauv ntej chainrings thiab tshem tawm cov fuss ntawm pem hauv ntej hloov tag nrho, tsis tau tswj kom muaj kev sib kis ntawm lub zog piv rau qhov tam sim no muaj nyob rau hauv kev sib cog lus. Nkag mus rau Sram's Force 1 - pawg uas tau ntseeg kuv Kuv yuav tsis xav tau ntau dua 11 lub zog.
Paj paj npleg
1x11 ('ib-los ntawm' luv luv) gearing tsis yog lub tswv yim tshiab - nws tau ua pov thawj nws tus kheej ntau xyoo hauv roob tsheb kauj vab thiab cyclocross. Txoj kev lag luam yuav yog cov txiv ntoo nyuaj rau tawg, tab sis Sram tau ua lej thiab thov nws ib-los ntawm txoj kev pab pawg (muaj kev xaiv Force thiab Rival) tuaj yeem npog 97% ntawm qhov tam sim no muaj siv ob-chainring teeb. -up. Thaum twg kuv tau caij tsheb kauj vab ib leeg, nws tau ntsib nrog kev tsis ntseeg los ntawm cov neeg uas ntseeg tsis tau tias nws muaj kev sib kis zoo ntawm lub zog lossis leej twg xav tias qhov dhia ntawm lub zog yuav tsum loj dhau. Kuv cov lus teb rau lawv txhua tus tau sim ua ntej dhau qhov kev txiav txim.
Kuv tau caij ib-los ntawm kev teeb tsa rau lub sijhawm sim dav, ncua ze li ib xyoos. Kuv tau siv nws ntawm ntau qhov chaw thiab qhov chaw, ua tiav qhov kev sim siab tshaj plaws ntawm txhua qhov, Alpen Brevet sportive hauv Switzerland, paub tias yog ib qho kev ua phem tshaj plaws hauv ib hnub ntawm ze li ntawm 280km nrog ntau dua 7,000m ntawm ntsug ascent.
Txhua lub sijhawm sim tsis tu ncua no kuv tseem tsis tau ntsib ntau qhov kev poob qis rau lub tswv yim no, ib yam li qee zaus yuav tsum hloov lub cassette nyob ntawm qhov chaw kuv caij. Kuv 11 lub zog tsis tau plam ib qho kev sib tw thiab kuv tsis tshua xav tau ntau dua. Rau feem ntau ntawm kev caij kuv tau ua nyob ib ncig ntawm txoj kev undulating ntawm Dorset nyob deb nroog, kuv pom tias 46t chainring ua ke nrog Sram's 11-32 cassette npog feem ntau. Tsis tshua muaj kuv pom kuv tus kheej tig tawm 46/11 sab saum toj iav. Tsuas yog thaum ceev mus txog ib ncig ntawm 60 kmh ntawm lub downhill, los yog ceev tailwind stretch, yog qhov no tiag tiag qhov teeb meem. Nyob rau lwm qhov kawg ntawm lub cassette, lub 46/32 hauv qab iav yog txaus los nqa kuv ntawm ib tug xis cadence mus rau feem ntau gradients, tej zaum nrog rau cov kev zam ntawm ib yam dab tsi zoo li ib tug 20% ramp, qhov twg kuv yuav raug yuam kom caij qis dua li qhov nyiam. cadence tawm ntawm lub eeb. Tab sis lub sij hawm thaum lub gearing tsis haum kuv cov kev xav tau tsis tshua muaj tseeb. Thaum kuv tau ua Alpen Brevet Kuv tau hloov mus rau Sram qhov dav tshaj plaws ntawm 10-42 cassette, muab kuv lub iav siab dua nrog rau cov iav hauv qab qis dua li cov hlua khi sib txuas nrog 11-28 cassette.
Broad thov
Siv 10-42 cassette txhais tau hais tias kev dhia loj dua ntawm lub zog, uas yuav tso tawm qee tus neeg caij tsheb, tab sis kuv qhov kev paub yog tias nws tsis tshua pom zoo li koj xav. Qhov tseeb kuv pom tias muaj qhov tshwm sim me me rau feem ntau ntawm cov xwm txheej.
Qhov tseem ceeb dua yog qhov tseeb tias qhov kev tsav tsheb ib leeg no zoo li tangibly smoother, ruaj khov thiab thaum kawg ua tau zoo dua hauv kev hloov fais fab ua tsaug rau Sram's X-Sync chainring. Lub nplhaib nws tus kheej yog tom qab nruj heev thiab nws qhov tshwj xeeb, qhov dav-nqa hniav profile yog tsim los nrhiav thiab ruaj ntseg tuav cov saw, whereas ntau chainrings feem ntau yog tsim los rau tag nrho cov opposite - nrog cov hniav zoo li tus kom yooj yim unloading ntawm cov saw. Ntxiv rau qhov clutched rear derailleur pab ua kom tag nrho cov tsav tsheb ntau dua. Raws li kev xav zoo tiag tiag, qhov no kuj ua rau cov khoom nyob ntsiag to, vim tias cov saw yuav tsis nplawm thiab thaws ncig ntawm txoj kev ntxhib. Thiab kuv tsis tau tso ib txoj hlua ib zaug thaum lub sijhawm xeem.
Kev zoo nkauj yog qhov tseeb, tab sis kuv yog tus kiv cua ntawm txoj kev ib leeg chainring ntxuav lub ntsej muag ntawm lub hauv ntej kawg ntawm tus tsav tsheb, tshwj xeeb tshaj yog thaum tus ncej tsis muaj braze-ntawm pem hauv ntej derailleur mount los yog, yog qee zaum cov ntaub ntawv (Giant thiab Canyon rau npe ob), lub mount tuaj yeem raug tshem tawm, tsis muaj ib qho kev hloov ntawm pem hauv ntej txhua.
Muaj kev sib cav tias nws tuaj yeem ua tau ntau dua aerodynamic. Muaj tseeb tiag cov neeg tsim qauv tuaj yeem tsom mus rau kev saib xyuas ntau dua ntawm kev tsim lub raj lub tog raj yog tias lawv tsis tas yuav txhawj xeeb txog qhov chaw ntawm lub hauv ntej mech.
Nws txoj kev yooj yim ntawm kev siv kuj yog qhov txaus siab heev - tsis tas yuav xav txog chainlines lossis xav txog kev sib xyaw zoo tshaj plaws ntawm chainring thiab sprocket. Koj tsuas yog txav mus los lossis txav mus.
Nws yooj yim pom yog vim li cas cov neeg caij tsheb yuav xav tias ceev faj txog kev tuav lub kaw lus uas txwv tsis pub cov qauv tsim ntawm kev caij tsheb kauj vab, tab sis tsis txhob tso tseg Lub Zog 1 txog thaum koj tau sim nws. Tej zaum koj yuav xav tsis thoob qhov koj pom.
Contact: sram.com
