Thorn Cycles Forum

Technical => Transmission => Electric Conversions of "Manual" Bikes => Topic started by: lamonabike on June 27, 2026, 10:31:50 PM

Title: Bafang PAS senso
Post by: lamonabike on June 27, 2026, 10:31:50 PM
Hi. Has anyone recently converted their Rohloff-equipped Thorn with a Bafang front motor?
There’s a couple of issues Id like to understand.

The online sales stores (Amazon, etc) offer a left side and right side PAS sensor, neither of which seem very compatible with Thorn’s BB. Has someone fitted either of these successfully?

Also the Thorn dropouts are 9mm. I can’t tell but I imagine the Bafang kit requires 10mm. Has anyone successfully installed this and what was the solution?

Thanks!