Keeb kwm keeb kwm yav dhau los thiab kev txhim kho tsheb kauj vab hauv hluav taws xob tuaj yeem raug xa rov qab mus rau qhov hloov tau lig rau cov tshuab hluav taws xob rau hauv tshuab hluav taws xob.
Keeb Kwm Keeb Kwm
Lub caij nyoog sib kis tau ntxov tshaj plaws tuaj yeem raug xa rov qab mus rau xyoo 1930, thaum ob lub suab nrov hloov chaw tshwm sim: vittoria margarita thiab osgear. Vittoria Margarita hloov los ntawm rub lub tshais ua haujlwm nyob rau sab caj dab, thaum Osgear hloov los ntawm cov lus qhia tswj los ntawm kev ua haujlwm cable.
Txawm hais tias cov khoom siv no tau nce siab, lawv tseem yuav tsum tau kev ua haujlwm ntawm tus neeg caij tsheb.
Keeb Kwm Kev Loj Hlob
Taw qhia txog kev lag luam hluav taws xob hluav taws xob sib kis tau: hauv xyoo 2009, Shimano tau xa thawj cov kev lag luam hauv cov txheej txheem hluav taws xob sib txuas, DOWA-ACCE DI2, khij qhov pib ntawm cov hluav taws xob era.
Tom qab, SRAM tau tsim tawm liab Etap Wireless Electronic xa cov kab ke hauv 2015, ntxiv txhawb kev txhim kho ntawm Wireless Xov Xwm Hluav Taws Xob Hluav Taws Xob.
Cov Kev Tawm Tsam thev naus laus zis: Electronic Daerereurs muaj qhov tseem ceeb tshaj li cov neeg siv hluav taws xob. Lawv yooj yim ua haujlwm, xav tau tsuas yog lub laub ntawm lub pob, thiab tuaj yeem kho tau, cia cov neeg caij tsheb mus nrhiav cov iav nrawm dua.
Ib qho ntxiv, hluav taws xob derereurs muaj lub sijhawm hloov nrawm nrawm, feem ntau 25% nrawm dua li cov neeg kho tshuab dererical.
Electronic deraerkeurs kuj muaj kev ruaj khov thiab yuav tsum tau kev txij nkawm tsawg dua, uas txhua yam sib txuas yog dej tsis zoo.
Kev lees txais: Txawm tias lawv muaj ntau yam zoo, kev siv hluav taws xob raug txwv los ntawm lawv tus nqi siab thiab qhov xav tau kev them nqi ib txwm muaj. Coob tus neeg caij tsheb txuas ntxiv siv cov neeg siv khoom siv hluav taws xob vim tus nqi yam.
