Why do steam locomotive train engines all have wheels that have a lopsided section that is solid and doesn't have spokes? - Quora
Why do steam locomotive train engines all have wheels that have a lopsided section that is solid and doesn't have spokes? - Quora
![Why do steam engine wheels have these hemisphere bits parallel to the coupling rods? Why are some bigger than the others? : r/trains Why do steam engine wheels have these hemisphere bits parallel to the coupling rods? Why are some bigger than the others? : r/trains](https://preview.redd.it/n56p6tak8yw81.jpg?width=1080&crop=smart&auto=webp&s=6f5bfc8538f57863b032fe4c4256fa5e9639aeb1)