ATV 2-ply quad race tyres.- AT1205 & AT1206 The MXTrax Racing is suitable for the track or cross country racing. With advanced rubber compounds and aggressive tread pattern, these tyres delivers better traction, braking action and forward bit "Read the latest Test Report from New Zealand's 5th ranked quad racer Franek Krawczyk" on pdf below just click on it. (See bike-specific application guide in Sprint3 Fitments) Fits: KTM 450 SX ATV 2009-2010 505 SX ATV 2009-2010