Bicicleta Eléctrica 36V 48V 250W-2000W MTB Freno de Disco Motor Delantero Trasero Buje de Transmisión
Re: The rear hub motor fits the bike with a rear drop outsize "of 135mm", The front hub motor fits the bike with a front drop outsize "of 100mm". Re: No, they are only compatible with 6/7 speed spin cassettes.