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  1. M

    Rockrider est900 custom assistance in mode settings.

    Hi all , would anyone know what the best settings are for the power modes set from the control unit on the handle bar. Eco is set at 15% Tour is 20% Sport is 50% and the Boost is 100% . Any input from you all would be good.
  2. M

    Rockrider E-ST520

    I have an est 900 and found the frames larger than stated. I'm 5ft10 and bought a medium which is ok for me , but I read if you are between 2 sizes then go for the smaller. Hope this helps .
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