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Chainring selection... no clue

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    Chainring selection... no clue

    Hi all, first post here and I'm looking for advice on selecting the correct chainring for my ebike build.

    The base bike will be a Specialized Roll Sport comfort bike. I'm 64 and ride mostly on paved bike trails and secondary streets. Lots of moderate hills around my home. Not a commuter. I also will not be installing the throttle. I want to pedal and want some assistance from the motor, not an electric motorcycle. Battery I'm leaning towards is a dolphin 48v.

    Buying a BBS02 kit from Luna and I have a few options regarding the chainring. They are 46/48/52 tooth. Any thoughts and advice would be much appreciated.
    I have other questions, but will post those separately.
    Last edited by Farther; 03-18-2018, 07:01 AM.

    #2
    More teeth for more speed. Less teeth for more torque. A lot of buyers seem to go for the smaller rings. My HDs have 44t to keep the rpms up and the currant draw down.
    The bling ring is very popular and looks nice.

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