Feem ntau muaj xws li ib daim qauv, 5-thooj los yog 6-thooj qauv (thaum kis tau tus mob tsheb), 7-thooj qauv, 8-thooj qauv, 9-thooj qauv, 10-thooj qauv, 11-thooj qauv thiab 12-thooj qauv (txoj kev tsheb).
8, 9, thiab 10 speeds sawv cev rau tus naj npawb ntawm lub zog ntawm lub log rear flywheel.Qhov siab dua qhov ceev, qhov nqaim ntawm cov saw hlau.Vim hais tias tag nrho cov roob tsheb kauj vab pedals muaj peb chainrings, yog hais tias koj rear flywheel muaj yim, txhais tau tias cov chainrings yog 3 × tus naj npawb ntawm rear flywheels yog 8, uas sib npaug 24, uas txhais tau tias nws yog 24-ceev.Yog hais tias lub rear flywheel muaj 10 daim, tib txoj kev, koj lub tsheb yuav yog 3 × 10 = 30, uas txhais tau hais tias nws yog 30 ceev.
Roob tsheb kauj vab flywheels suav nrog 8-rau-24-ceev, 9-rau-27-ceev, thiab 10-rau-30-ceev flywheels.Qhov tseeb, cov neeg caij tsheb yuav tsis siv txhua lub zog.Lawv tsuas yog siv ib lub iav 80% ntawm lub sijhawm.Cov iav no yuav tsum yog qhov haum tshaj plaws rau tus neeg caij tsheb pedaling siv thiab zaus.
Nws tuaj yeem pom tau tias ntau lub zog ntawm cov kab ke sib kis muaj, qhov tseeb ntau tus neeg tsav tsheb tuaj yeem xaiv lub iav uas haum rau nws.Lub 27-ceev muaj 3 lub zog ntau dua li 24-ceev, muab cov neeg tsav tsheb xaiv ntau dua.Thiab qhov ntau zog muaj, qhov smoother lub hloov.
Post lub sij hawm: Oct-25-2023