Ducati Monster S4/R/RS (2001-2007)
Performance versions of original 900 Monster began with 2001’s S4 with a detuned 916 motor and continued with 2003’s S4R with 996 engine, single-sided swinger and twin, side-mounted pipes and finally 2006’s S4RS with Öhlins, radial Brembos and 130bhp. What you’ll pay today Less lairy S4 can be had for under £3K and is a connoisseur’s choice. S4RS cost £4300-£6000. But should you? An S4R can be more usable and just as flash as a 996/999.