Dave,
I readily admit to not being an expert with the BPM series of motors,to date we have only used the 8fun motor. The chinese are masters at using what they have to get product out the door-the BPM motors I have seen have usually been silver colour,so as to satisfy my requirement on our sample they could easily have sprayed it black to deliver the one off sample. The CST motors are normally black finish.
The chinese new year (CNY) is about to start up until the 17th Feb so its difficult for me to communicate with them now,immediately afterwards I am promised shipment of Arriba/Cobra and Tornado product so we can view actual production product soom afterwards.
It is our intention as with previous Kudos models to allow remote customers to buy Kudos bike parts as long as it does not affect our supporting spares stock to our own bikes.
For exanple,the TCM motor used in the Ibex crank drive bike including controller will be available at £224.00 plus vat,although it needs a special frame to mount the motor and BB tube dimensions it may be useful to a DIY builder.
Bit busy at the moment but the drawing of the BPM motor off the szbaf.com site does look very similar to my Arriba motor but sprayed black.
That probably raises more questions than answers,
Dave
Kudoscycles