Thorn Cycles Forum
Technical => Transmission => Topic started by: Webswonder on February 12, 2026, 03:46:47 PM
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I have a 2020 Raven with Rohloff which I have received an estimate from Thorn to have a Pendix installed. SJS do not have a demo bike to try but I'm confident the system must be pretty good otherwise they would not be selling and installing them. My wife has a Raleigh Motus pedelec bike and it's great to ride. If you want more exercise you just turn the assistance down. To go up the 20% gradient out of our valley you turn it up. Does anyone have experiences they can share of the Pendix conversion on any bike, but particularly on a Raven?
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Pendix have been covered a few times on the forum, I think this is the earliest thread, a few years ago, but I don't think they've changed much:
https://thorncyclesforum.co.uk/index.php?topic=13734.msg102106#msg102106
I'd tried one on an Airnimal and hadn't been impressed, I haven't got much to add to what I wrote then. Within a few months of that I'd decided on a purpose built E-bike rather than a conversion and haven't regretted it since.
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These Pendix-related topic links should help, Jeremy...
Pendix EDrive 500
https://thorncyclesforum.co.uk/index.php?topic=15252.0
Pendix Central Electric Motor, suits many Thorn bicycles
https://thorncyclesforum.co.uk/index.php?topic=13734.msg102106#msg102106
Pros and Cons of pendix
https://thorncyclesforum.co.uk/index.php?topic=14118.0
Nomad/Bafang E Unit
https://thorncyclesforum.co.uk/index.php?topic=13560.0
E assist for Twin Raven
https://thorncyclesforum.co.uk/index.php?topic=14399.0
Sacrilege ?
https://thorncyclesforum.co.uk/index.php?topic=14718.0
Best, Dan.