Post-Listing Update: This Ducati Monster S4RS Testastretta got up to $5,500 but did not meet reserve.
Originally created as a styling exercise, the Monster was appropriately named as it was a Frankenstein’d bike: a parts bin special with the front half (including engine) of a 900SS, the fork from a 750 Supersport, and the back half of a frame from the 851. Credited by some as reinventing the modern naked bike, this has been very popular for the Italian firm – in 2005 Monster sales were half of the entire Ducati portfolio. For years, it soldered on with minor tweaks until Ducati gave it a superbike engine and fuel injection in 2000, but it wasn’t until 2005 that one of the greatest Monsters ever built, the Ducati Monster S4RS Testastretta was released.
The S4RS got some serious upgrades over its lesser Monster brethren – the engine from the 999 Superbike (producing 130 horsepower and 76 lb-ft) and fully adjustable Ohlins suspension, as opposed to the Showa equivalents from even the S4R Monster. You also got radial mount P34 Brembo’s and 10-spoke Marchesini wheels, both of which were almost exactly brought over from the 999R Superbike.
This specific Ducati Monster S4RS Testastretta has 25,586 miles and is above average condition. The seller stresses (fairly) that this was the best Monster you could buy at the time, and he’s included several upgrades including a refreshed ECU, frame sliders, clipons, and of course, a full Termi carbon fiber exhaust system.
Find this Ducati Monster S4RS Testastretta for sale in Haverhill, Massachusetts with an opening bid of $5,000 and a BIN of $6,900