Iziko leMveliso

Iifolokhwe zinemilinganiselo emininzi engundoqo equka: i-offset, ubude, ububanzi, ubude betyhubhu yokuqondisa, kunye ne-steerer tube diameter.

  • Offset

Iifolokhwe zebhayisekile zihlala zine-offset, okanye iraki (inokungabhidaniswa nosetyenziso olwahlukileyo lwegama elithi iraki kwihlabathi lesithuthuthu), ebeka ifolokhwe iphelela phambili kwi-axis yokuqhuba.Oku kuphunyezwa ngokugoba iiblades phambili, ukujika iiblades ezithe ngqo phambili, okanye ngokubeka iziphelo zefolokhwe phambili kumgca ophakathi wamagqabi.Le yokugqibela isetyenziswa kwiifolokhwe zokunqunyanyiswa ekufuneka zibe neencakuba ezithe tye ukuze isixhobo sokunqunyanyiswa sisebenze.Amagqabi efolokhwe egobileyo anokubonelela ngokufunxa okuthile okothusayo.
Injongo yolu hlaselo kukunciphisa 'umzila', umgama apho ivili langaphambili lendawo yokudibanisa umhlaba ilandela emva kwendawo apho iasi yokulawula inqumla emhlabeni.Umkhondo omninzi wenza ibhayisekile ibenzima ukuyijika.
Iifolokhwe zebhayisekile zomdyarho wendlela zine-offset ye-40-55mm.[2]Kwiibhayisikile zokukhenketha kunye nolunye uyilo, i-engile yentloko yefreyimu kunye nobungakanani bevili kufuneka buthathelwe ingqalelo xa kumiselwa i-offset, kwaye kukho uluhlu olumxinwa lwe-offsets ezamkelekileyo ukunika iimpawu zokuphatha kakuhle.Umgaqo oqhelekileyo kukuba i-angle ye-slacker head angle idinga ifolokhwe ene-offset eninzi, kwaye amavili amancinci afuna i-offset encinci kuneevili ezinkulu.

  • Ubude

Ubude befolokhwe budla ngokulinganiswa ngokunxusene netyhubhu yokulawula ukusuka ezantsi kugqatso olusezantsi ukuya kumbindi we-asi yevili yangaphambili.[3]Uvavanyo luka-1996 lweefolokhwe zendlela ezingama-13 700c lufumene ubude obuyi-374.7 mm kunye nobuncinci be-363.5 mm.

  • Ububanzi

Ububanzi befolokhwe, ekwabizwa ngokuba yi-spacing, bulinganiswa i-colinear nge-asi yevili yangaphambili phakathi kweencam zangaphakathi zeephelo zefolokhwe.Uninzi lweefolokhwe zale mihla zobukhulu zine-100 mm isithuba.[4]Iifolokhwe zebhayisekile ezihlayo zeentaba ezilungiselelwe ukutyhubela iiasi zinezithuba eziyi-110 mm.[4]

  • Ubude betyhubhu yokuqondisa

Umbhobho olawulayo ulinganiswe nokuba uvumeleke kuphela iibheringi zeseti yentloko, kwimeko yeseti yentloko enentambo, okanye ube negalelo kumphakamo ofunekayo we-handlebar, kwimeko yeseti yentloko engenamsonto.

  • Idayimitha yetyhubhu yokuqondisa

Xa ulinganisa ifolokhwe kwisakhelo, ububanzi bokuqhuba ifolokhwe okanye ityhubhu yokuqondisa (1″ okanye 1⅛” okanye 1½”) akufunekanga bube bukhulu kunolo lwesakhelo, kwaye ubude betyhubhu yokuqondisa kufuneka bube bukhulu kunoko bube malunga. ilingana nobude betyhubhu yentloko kunye nobude bestakhi se-headset.Izixhobo ze-adaptha ziyafumaneka ukuze kusetyenziswe i-1″ yefolokhwe kwifreyimu eyilelwe 1⅛” ityhubhu yokulawula okanye 1⅛” ifolokhwe kwifreyimu eyi-1½”.

Abavelisi beebhayisikili eziphezulu, zombini iindlela kunye nentaba, baqalise ukusebenzisa iityhubhu ze-tapered steerer.Ngelixa kukho izibonelelo ezixelwayo, akukho migangatho ephuhlisiwe, kwaye umenzi ngamnye ulandela izivumelwano zakhe.Oku kwenza ukuba iindawo ezitshintshileyo kube nzima ukuza, zifumaneka kuphela kumenzi wokuqala.[5]

  • Imiba yokulinganisa ngokubanzi

Iibhleyidi mazibe bubude obufanelekileyo kuzo zombini ezi vili ezifunekayo kwaye zibenexabiso elichanekileyo leraki ukubonelela ngokuqikelelwa kwejiyometri yokuqhuba ejoliswe ngumyili wesakhelo.Ubude obusebenzayo befolokhwe bubonakaliswa ngokuqhelekileyo ngokwe-Axle-to-Crown race length (AC).Kwakhona, i-asi esevilini kufuneka ilingane kwincam zefolokhwe (idla ngokuba yi-9mm eqinileyo okanye enomgongxo, okanye i-20mm thru-axle).Abanye abavelisi bazise iifolokhwe kunye neehabhu zokuthelekisa ezinemigangatho yobunini, njenge-axle ye-Maverick eyi-24mm, i-Specialized 25mm thru-axle kunye nenkqubo ye-Cannondale's Lefty.

  • Umsonto

Iityhubhu zokuqhuba ifolokhwe zinokudityaniswa okanye zingafundwanga, kuxhomekeke kwi-headset esetyenziselwa ukuncamathisela ifolokhwe kuyo yonke isakhelo sebhayisekile.Ityhubhu yokulawula intsimbi engafundwanga inokudityaniswa ngokufa okufanelekileyo ukuba kuyimfuneko.I-pitch yentambo idla ngokuba yimisonto engama-24 nge-intshi nganye ngaphandle kwezinye iiRaleighs ezindala ezisebenzisa ama-26.


Ixesha lokuposa: Aug-30-2021