A new release from Spec-R is the Sport Series swing shaft. It is made from hard coated steel with a safety ring and at a lower price it is better for the beginner and for practice. Available for Xray touring cars in 50mm & 52mm and for Tamiya touring cars in 44mm & 46mm. Read more via the source link. Source: http://www.redrc.net/2012/07/spec-r-sport-series-swing-shaft/
