as Rahulrulez said the download speeds range up to 2 Mbps max with 256 kbps being minimum. Recently the upload speeds have gone up to 512 kbps.

remember its all in kilo bits per second, not kilo Bytes, so a on a 256kbps connection you should get 32 kilo Bytes of data theoretically.

I get steady 185 KBps Download and 47 KBps upload (both throttled for DL/UL balance) on private trackers and sometimes even on open trackers (if there are more seeders than leechers).