Magnus Erik Karlsson (born 28 December 1981)[1] is a Swedish former motorcycle speedway rider.

[3] His two older brothers, Peter Karlsson and Mikael Max are both former Speedway Grand Prix riders.

[4] All three brothers represented Sweden in the 2007 Speedway World Cup, with Magnus riding at reserve.

[6] In 2004, he moved on to the Hull Vikings, and was part of the team that won the League Championship, KO Cup and Young Shield treble.

Magnus decided to join his brother Peter at Elite League Wolverhampton Wolves in 2005 where he recorded a 5.58 average in his debut season, including a paid maximum.