Uretse ibibazo byo kubungabunga no guhagarika imodoka, twakiriye kandi ibibazo byinshi bibabaza umutwe ku bijyanye n'imiterere y'igare ryo mu misozi. Umuntu yakwibaza akamaro ka buri gipimo, uburyo bigira ingaruka ku miterere y'urugendo, n'uburyo bikorana n'ibindi bintu bigize imiterere y'igare n'imiterere yaryo. Tuzareba mu buryo bwimbitse bimwe mu bipimo by'ingenzi bya jiometri kugira ngo dusobanure neza abagenzi bashya—duhereye ku gice cyo hasi. Biragoye cyane kuvuga ku ngingo zose z'uburyo gupima igare rimwe bigira ingaruka ku kugendera ku igare, bityo tuzakora uko dushoboye kose kugira ngo tugere ku ngingo z'ingenzi zigira ingaruka ku magare menshi.
Uburebure bw'agace ko hasi ni igipimo gihagaze uhereye hasi ugana hagati ya BB y'igare iyo suspension yuzuye. Ikindi gipimo, BB drop, ni igipimo gihagaze uhereye ku murongo utambitse unyuze hagati y'aho igare rihagarara ukagera ku murongo uteganye hagati ya BB. Ibi bipimo byombi bifite akamaro mu buryo butandukanye iyo ureba igare no kumenya uko rigenda.
Gumanuka kwa BB akenshi ni byo abanyamagare bakoresha kugira ngo barebe uko bumva "bari" kandi "bakoresha" igare. Gumanuka kwa BB byiyongereye muri rusange bituma umuntu aba afite icyizere kandi wiyumva nk'aho yicaye ku gitereko aho kuyigenderaho. BB imanuka hagati y'imirongo muri rusange yumva ari nziza kurusha BB ndende iyo itwaye mu mizunguruko n'umwanda utembanye. Iki gipimo gikunze kuba gihamye kandi ntigihinduka bitewe n'ingano zitandukanye z'amapine cyangwa amapine. Ariko, uduce duto duto dukunze guhindura imwe mu mpinduka za geometrike. Uduce twinshi dufite uduce duto dushobora kuzamura cyangwa kumanura BB yabo ho mm 5-6, hamwe n'izindi nguni n'ibipimo by'ingaruka za chip. Bitewe n'inzira yawe n'ibyo ukunda, ibi bishobora guhindura igare ku buryo imiterere imwe ikora hagati mu nzira, mu gihe indi ikwiriye ahantu hatandukanye.
Uburebure bwa BB uhereye hasi mu ishyamba buhinduka cyane, aho umugozi uzamuka ukanamanuka, ubugari bw'ipine buhinduka, uburebure bw'umugozi uva ku ipine ukajya ku ikamba, uruziga ruvanze, n'indi ngendo iyo ari yo yose ya kimwe muri ibi cyangwa byombi. Reba isano iri hagati y'umugozi wawe n'ubutaka. Uburebure bwa BB akenshi ni ikintu cyihariye, aho bamwe mu bagendera ku mapine bakunda gukurura amapedali ku mabuye mu izina ry'uburyo bwo kugenda, mu gihe abandi bakunda kohereza amapine menshi, mu buryo butekanye.
Utuntu duto dushobora guhindura uburebure bwa BB, bigatuma habaho impinduka zikomeye ku buryo igare rikoresha. Urugero, iforogo ya Fox 38 ifite uburebure bwa mm 170 x 29 inches ifite uburebure bwa mm 583.7, mu gihe ingano imwe ifite uburebure bwa mm 586. Izindi forogo zose ku isoko zifite ingano zitandukanye kandi ziha igare uburyohe butandukanye.
Ku igare iryo ari ryo ryose rikurura imbaraga, aho ibirenge byawe n'amaboko yawe bihagaze ni ingenzi cyane kuko ari byo byonyine uhuriraho iyo umanuka. Mu kugereranya uburebure bwa BB n'ubugwa bw'amashusho abiri atandukanye, bishobora gufasha kubona uburebure bw'amashusho ugereranije n'iyi mibare. Amashusho ni igipimo gihagaze hagati y'umurongo umwe utambitse unyuze kuri BB n'undi murongo utambitse unyuze hagati y'umwobo wo hejuru w'umutwe. Nubwo amashusho ashobora guhindurwa hakoreshejwe intera iri hejuru no munsi y'igiti, ni byiza kureba uyu mubare mbere yo kugura amashusho kugira ngo umenye neza ko ushobora kugera ku burebure bw'aho ufata, ugereranije n'amashusho ya BB. Effective ikwiranye cyane n'ibyo ukeneye.
Amaboko magufi ya crank n'ibikingira amaguru bitanga umwanya n'umutekano ku gipimo cyo hasi cya BB, ariko ugomba kwitondera ibirenge byawe mu gihe ugenda ku mabuye maremare. Ku bakinnyi bafite amaguru magufi, BB yongerewe igabanuka isaba kandi uburebure bw'intebe ngufi kugira ngo ijyane n'urugendo rw'igipimo cy'icyuma cyifuzwa. Urugero, icyuma kinini ngenderaho ubu gifite 35mm BB drop ituma igare rimera neza ku muvuduko muto. Hamwe na crank ya 165mm yashyizweho, sinashoboraga kubona inkingi ya 170mm dropper mu ntebe y'intebe ifite uburebure bwa 445mm. Hari hafi 4mm hagati y'ikariso y'intebe n'inyuma y'ikariso y'icyuma bityo BB yo hasi, ituma intebe ifite uburebure cyangwa crank drop intera bizampatira kugabanya ingendo zanjye za dropper cyangwa kugenda ku gipimo gito; nta na kimwe muri ibyo cyumvikana gishimishije. Ku rundi ruhande, abagenzi barebare bazabona intebe nyinshi zo kwinjizwamo bitewe n'igipimo cyiyongereye cya BB drop n'ikariso y'intebe nyinshi, biha amashami yabo imbaraga zo kugura mu gipimo cy'icyuma.
Ingano y'ipine ni uburyo bworoshye bwo guhindura uburebure bwa BB no guhindura neza inguni y'umutwe w'igare nta kubagwa gukomeye. Niba igare ryawe rifite amapine ya santimetero 2.4 kandi ugashyiraho amapine y'inyuma ya santimetero 2.35 na santimetero 2.6 imbere, pedali ziri munsi yaryo nta gushidikanya ko zizaba zitandukanye. Menya ko imbonerahamwe y'imiterere y'igare ryawe ipimwa ukurikije ipine ry'inyongera, bityo ushobora kugerageza uburyo butandukanye bwo kunoza ubunararibonye bwawe bwo gutwara.
Ibi ni bimwe mu bintu byinshi bigira ingaruka ku burebure bwa BB kandi bishobora kugira ingaruka ku burebure bwa BB. Ese hari undi muntu ushobora gusangiza twese twakungukiramo? Nyamuneka abyandike mu bitekerezo biri hepfo.
Ndashaka gutanga igitekerezo gitandukanye. Bite ho niba abantu benshi bakunda igare rya BB nkeya, ariko mu by'ukuri biterwa n'uko imigozi iba iri hasi cyane? Kuko itandukaniro ry'uburebure hagati ya BB n'imigozi ni ingenzi cyane mu kuyitwara, kandi mu by'ukuri amagare menshi afite umuyoboro w'umutwe mugufi cyane (nibura ku bunini) kandi akenshi agurishwa munsi y'igiti iyo igare rigurishijwe. Nta bipimo byinshi byo gutandukanya imodoka.
Bite se ku giti? Umuyoboro muremure w’ingofero mu muyoboro mugufi w’umutwe utera guhindagurika cyane. Guhindura uburebure bw’umukono byongera "umugozi" nta ngaruka ku kugorora k’umuyoboro w’ingofero.
Yego, mfite umugongo wa mm 35 ufite intera ya mm 35 n'umugongo…ariko isuzuma ryanjye ntabwo rijyanye n'uburyo bwo kugira umugongo muremure. Ibi biterwa nuko imigongo y'igare ishobora kuba iri hasi cyane, abantu bakunda umugongo muke kuko wongera itandukaniro hagati y'umugongo n'umugongo muke.
BB irahinduka mu gihe cyo gushyiraho suspension. Umushoferi ashyiraho suspension, ishobora guhindura uburebure bwa BB no kugabanuka. Uburebure bwa BB buhinduka uko suspension izenguruka binyuze mu gukanda no kugaruka uko suspension igenda, ariko akenshi igenda ku burebure bushyizweho mu gihe cyo gushyiraho suspension. Ndatekereza ko imiterere ya suspension igira ingaruka nini (uburebure, kugabanuka) kurusha amapine cyangwa flip chips.
Utanga igitekerezo gikomeye cy'uko guhagarara bigira ingaruka zikomeye ku bipimo byombi. Tugomba gukoresha amanota adahinduka iyo tugereranya amagare, kandi guhagarara kwa buri wese biratandukanye, niyo mpamvu nkoresha imibare mbere yo guhagarara. Byaba byiza cyane ibigo byose bisangiye imbonerahamwe y'imiterere y'ikirere ifite guhagarara kwa 20% na 30%, nubwo hashobora kubaho bamwe mu bakinnyi badafite guhagarara imbere n'inyuma.
Itandukaniro riterwa n'uburebure bwa bb ugereranyije n'ubuso bw'ubutaka n'ubw'uruziga, ntabwo ari hagati y'uruziga rw'uruziga.
Agaciro kose ka bb drop number ni inkuru y’ikinyoma ikomeje gusobanurwa neza kandi yoroshye kuyumva ku muntu wese ufite uburambe mu gutwara amagare mato nka bmx, brompton cyangwa moulton.
BB yo hasi ntabwo bivuze umuyoboro muremure w'intebe. Ntabwo byumvikana na gato. Cyane cyane niba uvuga guhindura uburebure bwa BB ukoresheje amapine n'amakanya n'ibindi. Umuyoboro w'intebe ni uburebure buhamye ku gitereko runaka, kandi nta guhindura bizananura cyangwa ngo bigabanya uwo muyoboro w'intebe. Yego, niba ugabanyije umuyoboro cyane, umuyoboro w'intebe uzakomera kandi umuyoboro wo hejuru ukagira akamaro uzagabanuka gato, bishobora kuba ngombwa kwimura umuyoboro w'intebe ku muhanda, hanyuma umuyoboro w'intebe ugakenera kumanurwa gato, ariko ntibihindura uburebure bw'umuyoboro w'intebe.
Igitekerezo cyiza, murakoze. Ibisobanuro byanjye bishobora kuba bisobanutse neza muri icyo gice. Icyo nshaka kuvuga ni uko niba injeniyeri w’ishusho aguye BB mu gihe uburebure bw’agace k’intebe/agafunguka bugumana uburebure bumwe, agace k’intebe kazaba ndende, bishobora guteza ibibazo byo gufunga intebe.
Nibyo rwose. Nubwo ntazi neza impamvu ari ngombwa kugumana aho hejuru y'aho intebe iherereye.
By’umwihariko, amapikipiki yo kugerageza, asanzwe akoreshwa ari hagati ya +25 na +120mm BB.
Mu by’ukuri, iyanjye ni iy’umwihariko ifite +25 igenewe kugera kuri zeru hamwe n’umugenzi uri mu mwanya we. Ibi bikorwa kugira ngo byuzuze ibisabwa, kuko nta kibi nko gukoresha amafaranga yawe wakoreye cyane ku gikoresho gikingira pedali mu butaka iyo gikuwe ku mugozi.
Ku kibazo gikurikira cya hardtail, narangije dosiye ya CAD, harimo n'urupapuro rwa "Shall". Ayo ni yo mabwiriza ari kuri BB.
Ndifuza kubona ibipimo nyabyo by'abanyamagare bari ku mubyimba. Ingufu zanjye zikomeye ziri hagati ya -65 na -75 bitewe n'aho ziherereye. Nkoresha iyanjye hasi kandi ifata umurongo neza mu mfuruka kandi numva ntewe cyane mu byatsi birebire.
Si byo, byombi ni ukuri. Kugabanuka kwa BB bipimwa ugereranyije n'uko imodoka zigwa, ingano y'amapine ntabwo ibihindura, nubwo uburebure bw'amapine buhinduka. Uburebure bwa BB bupimwa uhereye hasi kandi buzazamuka cyangwa bugagabanuka uko ingano y'amapine ihinduka. Niyo mpamvu amagare manini afite amapine akenshi agira kugabanuka kwa BB, bityo uburebure bwa BB bugasa n'ubw'amagare mato afite amapine.
Andika imeri yawe kugira ngo ubone amakuru meza yo gutwara amagare yo mu misozi, hamwe n'ibicuruzwa byatoranyijwe n'amasezerano bigezwa mu gasanduku kawe k'ubutumwa buri cyumweru.