Try our re-instated info resource - "Aladdin's Cave" (Main menu)- sorry it's taken so long to fix
The guy who owned the CB500/4 that was featured in Motorcycle Mechanics recently has several of these in his collection....nice chap. They are rare over here, but they are here!!
Forgot to add, the ebay listing should be a 'Honda CA175' as it was introduced to the states in 1969...possible the term 'CD175 sloper' just stuck as it was sold in Europe 2 years earlier.