• I think they're the same thing.
    RD2 = Messenger

    its the zen part the makes it different. either way i'm very happy with the bike.

    earing is ok it spins out a bit too early on the downhills

    agree it does spin up too quick some times. but managed to overtake a learner on the way home today. felt good. cycle com said 34mph (very spinny). only had it 4 days see how it goes from here so far so good!!

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