file.go | 10 +---------
 t.go    |  7 ++++++-

diff --git a/file.go b/file.go
index 45defe6e87cbdc3714990da10f6d8383a95b6a6f..bd5a6999ff89e685c7a8d44f2ce573d25242c37f 100644
--- a/file.go
+++ b/file.go
@@ -140,15 +140,7 @@ 	f.SetPriority(PiecePriorityNone)
 }
 
 func (f *File) NewReader() Reader {
-	tr := reader{
-		mu:        f.t.cl.locker(),
-		t:         f.t,
-		readahead: 5 * 1024 * 1024,
-		offset:    f.Offset(),
-		length:    f.Length(),
-	}
-	f.t.addReader(&tr)
-	return &tr
+	return f.t.newReader(f.Offset(), f.Length())
 }
 
 // Sets the minimum priority for pieces in the File.
diff --git a/t.go b/t.go
index 69cef55410a391ab9e1bbfb546a859ee90fe785e..170827296bd6ffc4154f8c0b92dbc3729ba4163d 100644
--- a/t.go
+++ b/t.go
@@ -32,11 +32,16 @@
 // Returns a Reader bound to the torrent's data. All read calls block until the data requested is
 // actually available. Note that you probably want to ensure the Torrent Info is available first.
 func (t *Torrent) NewReader() Reader {
+	return t.newReader(0, *t.length)
+}
+
+func (t *Torrent) newReader(offset, length int64) Reader {
 	r := reader{
 		mu:        t.cl.locker(),
 		t:         t,
 		readahead: 5 * 1024 * 1024,
-		length:    *t.length,
+		offset:    offset,
+		length:    length,
 	}
 	t.addReader(&r)
 	return &r