Motor question | Leafmotor

Q: What are the winding options of this one: https://www.leafbike.com/products/e-bike-hub-motor/48v-52v-1500w-rear-spoke-hub-motor-electric-bike-motor-spline-cassette-1110.html I need around 10rpm/v.... Do you have something similar? A: can make as below: max 680rpm max 630rpm max 580rpm max 530rpm max 480rpm max 430rpm max 380rpm ... max 80rpm Q: This rpm are at which voltage? 36v or 48v? A：48v 1500w Q: Another question. What is the axle nut size? M14 or m12? Or you can customize? Can you laze this hub motor to a wheel 20 inch rim ? How much would that extra cost? Thanks again for your help. A：M14 (flat is 10mm) fit for all kinds of standard bike. Yes, can laze it on 20 inch.   No extra cost. Just order Item: LBM20481500RN   And leave message: speed, cassette version Q:What sort of connector it has? I assume the hub motor comes already with one cable, can you provide with a second one? A:The connectors as pictures. Also will come with spare connectors for controller side. When you order, just leave message: one cable  Q: But it is soldered to the hub motor that long cable? A:No long cable.. can come with a spare cable.. Because cable factory supply about 1m lenght per cable. Q:Can you confirm me please, This wheel: https://www.leafbike.com/products/e-bike-hub-motor/20-inch-48v-52v-1500w-rear-bike-motor-wheel-1016.html With this cassette: https://www.leafbike.com/products/electric-bike-parts/6-speed-freewheel-857.html Fits in 135mm dropouts, right?