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    Dropper seat post.

    Hello all, I would like to know if anyone has fitted a dropper seat post to a Riese & Muller Superdelite, and if so what were the measurements. Specifically the part that fits down into the seat tube, and what problems were encountered, if any when fitting it. I learned after buying it that I...
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    Help! Speedbox.

    Hello all, I've been reading up about the Speedbox tuning dongles of late and at first I thought "WOW" this is great, but after reading a few reviews about them, I would think twice about purchasing one. Examples of the motor going into limp mode after so many miles, mainly with Bosch motors...
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    Brake light.

    Hello all. I've noticed in recent years that speed pedalecs "german ones" in particular, that is, come with an integrated brake light. I think this feature would be a good addition on my own bike, which is not a speed pedalec but a standard 250w Bosch powered bike. The problem is I am not...
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    Electrical upgrade.

    I have a Haibike trekking Pro which I bought in 2015. I'd love to upgrade the voltage from 6 volts to 12 going to the front light as in their latest bikes which come with a Lupine SL B. Would this be pretty straight forward to do, provided I obtain the correct converter/inverter, if indeed...