I no longer have the box for this, though it was never displayed, so I can't recall the scale. I think it was 1:18 but it could be 1:24. The wheel diameter is 1.25". It's a type of vintage motorized bicycle that was common in Europe in the 1970s. I don't remember what they were called. I think they were regular bicycles with attachments to make them motorized, so this looks like a regular bicycle. Please look carefully at the pictures and ask any questions before buying. Sold as-is, no returns.