Hi
I have a similar drive that came with other parts, when I bought my bike.

It came with a sprocket and smiths speedo in kilometres per hour.
I hadn’t been able to find what it originally came off.







If anybody know what this is off, it would be interesting.

email (option): Sglover1104@gmail.com

Hi, I have a 1949 ZM20 and my speedo cable is connected to the gearbox I would send photos but can not work how to download them

email (option): Gawls62@icloud.com

That would be correct for a '49 model which had the drive taken from the gearbox after the change to telescopic forks in 1948..Ian.

email (option): ian@wright52.plus.com

Correct my bike has the telescopic forks

email (option): Gawls62@icloud.com