Ukongeza kwimiba yokugcinwa kunye nokunqunyanyiswa, siphinde safumana itoni yemibuzo yokukhangela intloko malunga ne-mountain bike frame frame geometry.Omnye uyazibuza ukuba umlinganiselo ngamnye ubaluleke kangakanani, uchaphazela njani iimpawu zokukhwela, kunye nendlela abasebenzisana ngayo nezinye izinto zejometri yebhayisikili kunye nokumiswa. Uyilo.Siza kujonga ngokurhabaxa kweminye imilinganiselo yejiyometri ebaluleke kakhulu ukutshabalalisa abakhweli abatsha-ukuqala ngesibiyeli esisezantsi.Kuphantse ukuba akunakwenzeka ukugubungela yonke inkalo yendlela umlinganiselo wesakhelo esinye esichaphazela ngayo indlela ibhayisekile ekhwela ngayo, ngoko ke senze konke okusemandleni ethu ukufikelela kumanqaku aphambili achaphazela uninzi lweebhayisekile.
Ukuphakama kwesibiyeli esisezantsi ngumlinganiselo othe nkqo ukusuka emhlabeni ukuya kumbindi we-BB yebhayisekile xa ukunqunyanyiswa kwandiswe ngokupheleleyo.Omnye umlinganiselo, ukuhla kwe-BB, ngumlinganiselo othe nkqo osuka kumgca othe tye kumbindi wehabhu yebhayisekile ukuya kumgca onxuseneyo. embindini weBB. Le milinganiso mibini ixabisekile ngeendlela ezahlukeneyo xa ujonga ibhayisekile kwaye umisela indlela ekhwela ngayo.
Ukwehla kwe-BB kudla ngokuba yinto abakhweli abayisebenzisayo ukubona ukuba banokuziva njani “ngaphakathi” kwaye “basebenzise” ibhayisekile. Ukuhla kwe-BB eyongezelelweyo kukhokelela kumkhweli ozinzileyo nozithembileyo oziva ngathi uhleli kwifreyimu kunokuba ayikhwele. I-BB ehamba phakathi kwee-axles ngokubanzi ivakalelwa ngcono kune-BB ephakamileyo xa uqhuba ngokujika kunye nokungcola okumdaka.Lo mlinganiso udla ngokusisigxina kwaye awuchatshazelwa ngamavili ahlukeneyo okanye ubukhulu bevili.Nangona kunjalo, i-flip chips idla ngokutshintsha enye yeenguqu zejometri.Zininzi. iifreyimu ezine-flip chip zinokunyusa okanye zinciphise i-BB yazo nge-5-6mm, idityaniswe namanye ama-angles kunye nemilinganiselo yefuthe le-chip.Kuxhomekeke kwindlela yakho kunye nezinto ozikhethayo, oku kunokutshintsha ibhayisekile ukwenzela ukuba isilungiselelo esinye sisebenze kwiziko elithile lendlela, ngelixa enye ifaneleka ngcono indawo eyahlukileyo.
Ukuphakama kwe-BB ukusuka kumgangatho wehlathi kuguquguquka ngakumbi, kunye ne-flip chip ehamba phezulu nasezantsi, utshintsho lobubanzi betayara, utshintsho lwefolokhwe ukuya kwisithsaba sobude, umxube wevili, kunye nayo nayiphi na enye intshukumo yenye okanye zombini ezi. .Into kubudlelwane be-asi yakho nobude bobumdaka be-BB ikholisa ukuba yeyobuqu, abanye abakhweli bakhetha ukukhuhla iipedali ematyeni egameni lendlela yokukhwela etyaliweyo, ngelixa abanye bekhetha ukuhanjiswa okuphezulu, ngokukhuselekileyo ngaphandle kobungozi.
Izinto ezincinci zinokutshintsha ubude be-BB, zenze utshintsho olunentsingiselo kwindlela ibhayisekile ephethe ngayo.Ngokomzekelo, i-170mm x 29in Fox 38 ifolokhwe inomlinganiselo wesithsaba se-583.7mm, ngelixa ubungakanani obufanayo bulinganisa i-586mm ubude.Zonke ezinye iifolokhwe kwimarike zikhona. ubukhulu obahlukeneyo kwaye iya kunika ibhayisekile incasa eyahlukileyo kancinane.
Ngayo nayiphi na ibhayisekile yomxhuzulane, indawo yeenyawo zakho kunye nezandla ibaluleke kakhulu kuba yindawo yakho kuphela yoqhagamshelwano xa uhla.Xa uthelekisa ukuphakama kweBB kunye nokuhla kwezakhelo ezimbini ezahlukeneyo, kunokuba luncedo ukubona ukuphakama kwe-stack ngokumalunga La manani.I-stack ngumlinganiselo othe nkqo phakathi komgca omnye othe tye kwi-BB kunye nomnye umgca othe tye phakathi kumbindi wokuvula ityhubhu ephezulu.Ngelixa i-stack inokulungelelaniswa usebenzisa i-spacers ngaphezulu nangaphantsi kwesiqu, luluvo oluhle ukujonga. eli nani phambi kokuthenga isakhelo sokuqinisekisa ukuba ungafikelela kwi-handlebar efunekayo ukuphakama, xa kuthelekiswa ne-BB drop Effective ilungele iimfuno zakho.
Iingalo ze-crank ezimfutshane kunye nabagadi be-bash benza indawo eyongezelelweyo kunye nokhuseleko lwe-BB ephantsi, kodwa kufuneka ujonge iinzwane zakho xa ukhwela amatye amade. Uhambo olunqwenelekayo lwedropha.Umzekelo, enkulu endiyikhwelayo ngoku ine-35mm BB yehla eyenza ibhayisekile ivakale ilungile kwisantya esicothayo.Nge-165mm crank efakiweyo, andikwazi kufumana nethuba le-170mm lokulahla kwiposti yokuhla ye-445mm ubude.Kukho malunga ne-4mm phakathi kwekhola yesitulo kunye nomzantsi wekhola ye-dropper ukuze i-BB ephantsi, ibangele ityhubhu yokuhlala emide okanye iingalo ezinde ze-crank ziya kundinyanzela ukuba ndinciphise ukuhamba kwam i-dropper okanye ndikhwele ubungakanani obuncinci beSakhelo;nakwezo zandi zikhangayo.Kwelinye icala, abakhweli abade baya kufumana ukufakwa kwe-seatpost engaphezulu ngokubonga kwi-BB eyongezelelweyo kunye ne-tube yokuhlala, ukunika iziqu zabo amandla okuthenga ngakumbi ngaphakathi kwesakhelo.
Ubungakanani beTire buyindlela elula yokulungelelanisa ubude be-BB kwaye wenze uhlengahlengiso olufanelekileyo kwi-angle ye-tube yebhayisekile yentloko ngaphandle kokuhlinzwa okukhulu.Ukuba ibhayisekile yakho iza kunye nesethi yamavili angama-2.4-intshi kwaye ufake i-2.35-intshi ngasemva kunye ne-2.6-intshi ngaphambili. iifolokhwe, iipedals ngaphantsi ngokungathandabuzekiyo ziya kuziva zahlukile.Qaphela ukuba ibhayisekile itshathi yejometri yakho ilinganiswa ngesondo elisecaleni engqondweni, ngoko unokuzama imidibaniso eyahlukeneyo ukuphucula amava akho okukhwela.
Ezi zezinye zezinto ezininzi eziphembelela ubude beBB kwaye zinokuchaphazela ubude beBB. Ingaba unaye nabani na ongabelana naye esinokuzuza kuye sonke?Nceda uzibhale phantsi kwizimvo ezingezantsi.
Ndingathanda ukunika imbono eyahlukileyo.Kuthekani ukuba abantu abaninzi bakhetha ibhayisekile ye-BB ephantsi, kodwa eneneni kungenxa yokuba ii-handlebars ziphantsi kakhulu? Kuba umahluko wobude phakathi kwe-BB kunye ne-handlebar ibaluleke kakhulu ekuphatheni, kwaye ngokombono wam. iibhayisekile ezininzi zinentloko ityhubhu mfutshane kakhulu (ubuncinane ubukhulu enkulu) kwaye idla ngokuthengiswa phantsi kwesiqu xa ibhayisekile ithengiswe Hayi kakhulu spacers.
Kuthekani ngepali? Ityhubhu yokulawula ende kwityhubhu yentloko emfutshane ibangela ukuguquka.
Ewe, ewe ndinesiqu esingama-35mm kunye ne-35mm spacers kunye nesiqu ... kodwa uphononongo lwam alukho malunga nendlela yokuphatha i-handlebar. umehluko wobude phakathi kwe-handlebar kunye ne-BB.
I-BB iyatshintsha ngexesha lokumisa ukumiswa.Umkhweli ubeka i-sag, enokuthi itshintshe ukuphakama kwe-BB kunye nokuhla. cinga ukuba iisetingi ze-sag zinempembelelo enkulu (ubude, ukuhla) kunamavili okanye i-flip chips.
Wenza inqaku eliqinileyo lokuba i-sag inempembelelo ebalulekileyo kuzo zombini imilinganiselo.Kufuneka sisebenzise amanqaku azinzileyo xa sithelekisa iibhayisikili, kwaye i-sag yomntu wonke yahlukile, yiyo loo nto ndisebenzisa amanani angaphambili.Kuya kuba kuhle ukuba zonke iinkampani zabelana. Itheyibhile yejometri ene-20% kunye ne-30% sag, nangona kunokubakho abanye abakhweli abangenayo i-balanced ngaphambili kunye ne-sag yangasemva.
Umahluko ubangelwa kubude be-bb ngokunxulumene nomhlaba kunye nomphezulu woqhagamshelwano lwevili, hayi iziko levili lokujikeleza.
Naliphi na ixabiso le-bb inombolo yokulahla yintsomi egcinwe kakuhle ekulula ukuyiqonda kuye nabani na onamava ngeebhayisikili ezincinci ezifana ne-bmx, i-brompton okanye i-moulton.
I-BB ephantsi ayithethi ityhubhu yokuhlala emide.Ayinangqiqo kwaphela.Ingakumbi ukuba uthetha ngokulungisa ukuphakama kweBB usebenzisa amatayara kunye neefolokhwe njl. akukho luhlengahlengiso luyakolula okanye lucuthe loo ityhubhu yesitulo. Ewe, ukuba unciphisa kakhulu ifolokhwe, ityhubhu yesitulo iya kunyuka kwaye umgqomo ophezulu osebenzayo uya kucutheka kancinci, kunokuba yimfuneko ukuhambisa isali ngasemva kwindlela, kwaye emva koko. isali kufuneka ithotywe kancinane, kodwa ayikatshintshi ncam ubude betyhubhu yesitulo.
Ingcamango enkulu, enkosi.Inkcazo yam ingacaca ngakumbi kwelo candelo.Into endifuna ukuyibonisa kukuba ukuba injineli yesakhelo iwisa i-BB ngelixa igcina ukuphakama komphezulu wetyhubhu yokuhlala / ivula okufanayo, ityhubhu yokuhlala iya kufumana ixesha elide. , enokubangela iingxaki nge-dropper post fit.
fair ngokwaneleyo.Nangona andiqinisekanga ukuba kutheni kuyimfuneko ukugcina indawo echanekileyo yomphezulu wetyhubhu yokuhlala.
Iibhayisekile zovavanyo ngakumbi, ukusetyenziswa kwazo okuqhelekileyo ukusuka +25 ukuya +120mm BB.
Ngeliphandle, yam iqhelekile kwaye i +25 ijolise ukuya ku-zero kunye nomkhweli endaweni.Oku kwenzelwa ukwanelisa iimfuno, kuba akukho nto imbi njengokuchitha imali oyisebenze nzima ekunqunyanyisweni okungcwaba iipedali emhlabeni. ukuba isusiwe kwipiste.
Kwi-hardtail yesiko elilandelayo, ndiyigqibile ifayile ye-CAD, kubandakanywa nephepha elithi "Shall".Yiyo imigaqo kwi-BB.
Ndingathanda ukubona imilinganiselo yokwenyani yokuhla kubakhweli beebhayisikile kwi-sag.Ukuqina kwam kuphakathi kwe -65 kunye -75 ngokuxhomekeke kwindawo ye-eccentric.Ndibaleka eyam ezantsi kwaye ibambe umgca ngcono ezikoneni kwaye ndiziva ngakumbi. ityalwe kwingca ende.
Akulunganga, zombini ziyinyani. Ukuhla kweBB kulinganiswa xa kuthelekiswa nokuyeka isikolo, ubungakanani bevili abutshintshi oku, nangona ubude befolokhwe buyenza. badla ngokuba ne-BB eyehlayo, ngoko ubude babo be-BB bufana neebhayisekile ezincinci ezinamavili.
Ngenisa i-imeyile yakho ukuze ufumane iindaba eziphezulu zokukhwela ibhayisekile entabeni, kunye nokukhetha kwemveliso kunye nezivumelwano eziziswe kwibhokisi yakho rhoqo ngeveki.