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  1. bombadero

    Replace axle in Go SwissDrive rear hub drive motor?

    So I recently broke the axle on a Go SwissDrive rear hub motor for my HP Velotechnik Scorpion. I've opted to purchase a replacement wheel at retail cost, which the distributor has kindly offered. That leaves me with a perfectly good, brand new hub motor that is useless owing to a single part...
  2. bombadero

    Is a full-face DH helmet for certain e-bike riding activities overkill or a good idea?

    I recently had a small spill on a slippery dirt trail in a park here in San Francisco - bike went sideways, I smacked my head on some concrete at the entrance to the trail where it interfaces with the street off the curb. It's a Casco Roadster, a decent European helmet that meets EN-1078...
  3. bombadero

    Causes/prevention of Go SwissDrive torque sensor failure?

    If anyone has any engineering insight into this, it would be greatly appreciated. I recently had the torque sensor fail on my GSD motor. Since GSD is out of business and my warranty runs out in a month, if it happens again I'll be on the hook for $1,400 for a replacement from HP Velotechnik, as...
  4. bombadero

    Go SwissDrive Servicetool license?

    I don't suppose anyone knows how to get a hold of a license key for a the Go SwissDrive Servicetool? Can't find it anywhere online. The mechanic who retrofitted my trike sent me a link to the tool, which I need to use to attempt a motor re-calibration - which I'm hoping will fix it as I'm...
  5. bombadero

    Hello from San Francisco - two-year enthusiast

    Ok, round 3. Having some technical difficulties, every time I try to edit a post it gets deleted. Anyhow, my spouse and I own a Riese & Muller Homage GT Nuvinci that we traded up from a Kalkhoff Tasman Classic, and a 2006 (!) HP Velotechnik Scorpion FS20 that I had retrofitted with the factory...
  6. bombadero

    Hello from San Francisco - two-year enthusiast

    Ok, round 2. Had some technical difficulties the first time and somehow the original post got deleted. Anyhow, my spouse and I own a Riese & Muller Homage GT Nuvinci that we traded up from a Kalkhoff Tasman Classic, and a 2006 (!) HP Velotechnik Scorpion FS20 that I had retrofitted with the...
  7. bombadero

    Hello from San Francisco - two year enthusiast

    Hey all, new to the forum, but been watching Court's videos for a while and owned some bikes with my spouse for a couple of years. We have a 2018 Riese & Muller Homage GT Nuvinci that we traded up from a Kalkhoff Tasman Classic. We loved the Kalkhoff, but its Impulse drive system was getting...