Ducati Monster S4R Testastretta

Ducati Announces the Ducati Monster S4R Testastretta More:  Monster S4RS  |  Monster S2R  |  Text and photos courtesy Ducati Motor S.p.A. Official Press Release – The Monster 2007 range is now bigger and better with the new S4R Testastretta. This new bike gains the famous 130 HP Testastretta low sump L-twin engine, previously mounted only on the …